JP2000101786A - Device and method for reading image and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the image reading device, image reading method, and storage medium which can perform scan operation for obtaining a film image free of dust and stains in a short time with simple constitution. SOLUTION: The device has a lamp 3 having light emission characteristics of a visible-light wavelength region to infrared wavelength region, a line sensor 6 where transmitted light from a film 2 is imaged, a filter 10 which is arranged on the light incidence side of the line sensor 6, held so that it freely moves onto and away from the optical axis 9, and cuts infrared light, and a control circuit 12 which performs scanning operation for obtaining image information of the film 2 by infrared light, detects the range of dirt and stains on the film 2, performs scanning operation for obtaining image information of the film 2 by visible light, and corrects the range of the dirt and stains of the image information of the film 2 by visible light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus, an image reading method, and a storage medium, and more particularly to an image reading apparatus suitable for application to a film scanner for reading an image of a transparent original such as a developed photographic film. The present invention relates to a reading device, an image reading method, and a storage medium.

[0002]

2. Description of the Related Art Conventionally, there is a film image reading apparatus (film scanner) for reading an image of a transparent original such as a developed photographic film. The configuration of a conventional film image reading device (film scanner) will be described with reference to FIGS.
FIG. 21 is a configuration diagram showing a configuration of a main part of a conventional film scanner, FIG. 22 is a perspective view showing a main part of the conventional film scanner, and FIG. 23 is a circuit configuration of a conventional film scanner. FIG.

In the figure, reference numeral 101 denotes a film carriage used as a document table, and 102 denotes a developed film.
It is fixed on a film carriage 101. 103
Is a lamp serving as a light source, 104 is a mirror, 105 is a lens, 106 is a line sensor composed of a CCD (charge coupled device) or the like.
02, is reflected by the mirror 104, and is imaged on the line sensor 106 by the lens 105.

Reference numeral 107 denotes a motor for moving the film carriage 101 in a scanning direction (the direction of the arrow in FIGS. 21 and 22), and reference numeral 108 denotes a film carriage 1.
01 is a sensor for detecting the position, 109 is an optical axis from the lamp 103 to the line sensor 106, 110 is a control circuit,
Reference numeral 111 denotes a lens holder for holding the lens 105;
Is an outer case of the film scanner, and 113 is an input / output terminal. The lamp 103, the line sensor 106, the motor 107, the sensor 108, and the input / output terminal 113 are electrically connected to the control circuit 110.

As shown in FIG. 23, the control circuit 110 includes a film scanner control circuit 114, a sensor control circuit 115, a motor control circuit 116, an image information processing circuit 117, a lamp control circuit 118, and a line sensor control circuit 119. , A film density detection circuit 120, and a motor drive speed determination circuit 121.

Next, a method of reading image information of the film 102 in the conventional film scanner having the above-described configuration will be described. First, the input / output terminal 113
When a command of a film reading operation is input through the sensor 108, the position of the film carriage 101 is detected by the sensor 108 and the sensor control circuit 115, and this information is transmitted to the film scanner control circuit 114. Next, the motor 107 is driven by the motor control circuit 116 to move the film carriage 101 to the standby position in order to cause the film carriage 101 to wait at the predetermined standby position.

Next, the density of the film 102 is detected by the film density detecting circuit 120 by a known method, and the driving speed of the motor 107 for scanning is determined by the motor driving speed determining circuit 121 based on this information. Next, the lamp 103 is turned on by the lamp control circuit 118, and the motor 107 is rotated at the previously determined driving speed to perform a scanning operation. During this scan, image information is sent from the line sensor 106 to the line sensor control circuit 119.
To the image information processing circuit 117. When this scanning operation is completed, the lamp 103 is turned off by the lamp control circuit 118 and at the same time, the image information processing circuit 11 is turned off.
At 7, image information processing is performed. And the input / output terminal 11
3, the image information is output, and the film image reading operation of the film scanner ends.

In recent years, in addition to scanning with visible light as described above, dust and film flaws on the film are detected by performing the same scanning with infrared light and scanning with visible light. A film scanner capable of correcting the detected dust and flaws by image processing by superimposing it on image information and providing an image free of dust and flaws is disclosed in
-78992 and the like.

[0009]

However, the above-mentioned prior art has the following disadvantages. That is, in order to scan a film image with visible light and scan a film image with infrared light to detect dust on the film and flaws on the film, the film carriage and the line sensor are relatively reciprocated two times. Need to scan film image. That is, in order to obtain a film image in which dust and flaws have been corrected, the conventional technique has a disadvantage that a longer scan time is required than when the above-described dust and flaws are not corrected.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has an image reading apparatus capable of performing a scanning operation for obtaining a film image free from dust and scratches in a shorter time with a simple configuration than in the prior art. It is a first object to provide an image reading method and a storage medium.

Further, the present invention provides an image reading apparatus, an image reading method, and an image reading method capable of performing a scanning operation using infrared light for obtaining a film image free of dust and scratches in a shorter time than in the past. A second object is to provide a storage medium.

Further, the present invention corrects the range of dust and flaws in the image information of a film when scanning a film having almost no dust and flaws or when it is not necessary to correct dust and flaws in an output image. A third object is to provide an image reading device, an image reading method, and a storage medium that can reduce the time required for image information processing for obtaining film image information using visible light without performing image processing. And

[0013]

In order to achieve the above object, the present invention according to the first aspect of the present invention provides a transparent original and a light detecting means for detecting transmitted light from the transparent original by a relative reciprocating motion of the transparent original. What is claimed is: 1. An image reading apparatus for reading image information of a document, comprising: a light emitting unit that emits light of a first wavelength range and light of a second wavelength range on a transparent document; And control means for reading image information from the transparent document by reading the image information from the transparent document by the light of the second wavelength region by reading the image information from the transparent document by the other movement in the reciprocating movement.

In order to achieve the above object, according to the present invention, the transparent original is an original such as a developed photographic film, and the light in the first wavelength region is visible light;
The light in the second wavelength region is infrared light.

According to a third aspect of the present invention, the control means includes: a rough scan for obtaining rough image information of the transparent original by visible light; Fine scan for obtaining image information,
It is characterized in that control is performed such that image information is read from a transparent original by infrared light scanning for obtaining image information of the transparent original by infrared light.

In order to achieve the above object, the present invention as set forth in claim 4, wherein the control means is configured to perform the infrared scan in one of the two reciprocating motions for performing the rough scan and the fine scan. It is characterized in that control is performed to perform optical scanning.

In order to achieve the above object, the present invention according to claim 5, wherein the control means performs the infrared light scan by one-way motion of the reciprocating motion for performing the rough scan. It is characterized by controlling.

In order to achieve the above object, the present invention according to claim 6, wherein the control means performs the infrared light scan by one-way movement of the reciprocating movement for performing the fine scan. It is characterized by controlling.

In order to achieve the above object, according to the present invention, image information of a transparent original is read by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. An image reading apparatus, comprising: a light emitting unit that emits light of a first wavelength region and light of a second wavelength region to a transparent original; and control unit that controls reading of image information from the transparent original. An operation mode in which the image information is not read by the light in the second wavelength region when reading the image information is selectable.

To achieve the above object, according to the present invention, the transparent original is an original such as a developed photographic film, and the light in the first wavelength region is visible light;
The light in the second wavelength region is infrared light.

In order to achieve the above object, the present invention according to a ninth aspect of the present invention has a light shielding means disposed on a light incident side of the light detecting means and cutting light in the second wavelength region. The control means controls the light shielding means so as to be able to advance and retreat on the optical axis.

In order to achieve the above object, the present invention according to claim 10 is arranged on the light incident side of the light detecting means and transmits light in the first wavelength region and light in the second wavelength region. It has a physical element capable of controlling the rate, the control means,
Controlling a spectral transmission characteristic of the physical element.

In order to achieve the above object, the present invention according to claim 11, wherein the light emitting means emits light in the first wavelength region and light in the second wavelength region. A second light-emitting unit for controlling the lighting / extinguishing of the first and second light-emitting units of the light-emitting unit.

According to a twelfth aspect of the present invention, the image information of a transparent original is read by a relative reciprocating motion of a transparent original and light detecting means for detecting light transmitted from the transparent original. An image reading method applied to an image reading apparatus, comprising: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent document; Controlling the image information to be read from the transparent original by reading the image information from the transparent original by the light in the area, and reading the image information from the transparent original by the light in the second wavelength area by the movement in the other direction in the reciprocating movement. .

In order to achieve the above object, according to the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength region is visible light, The light in the two wavelength region is infrared light.

In order to achieve the above object, the present invention according to a fourteenth aspect of the present invention is that, in the control step, a rough scan for obtaining general image information of a transparent original by visible light, a transparent original of a designated image quality by visible light. It is characterized in that control is performed such that image information is read from a transparent original by fine scan for obtaining image information and infrared light scanning for obtaining image information of a transparent original by infrared light.

In order to achieve the above object, the present invention as set forth in claim 15 is characterized in that, in the control step, the infrared ray is moved by one of the two reciprocating movements for performing the rough scan and the fine scan. It is characterized in that control is performed to perform optical scanning.

In order to achieve the above object, according to the present invention, in the control step, the infrared light scan is performed by one-way movement of the reciprocating movement for performing the rough scan. It is characterized by controlling.

In order to achieve the above object, the present invention as set forth in claim 17, wherein in the control step, the infrared light scan is performed by one-way motion of the reciprocating motion for performing the fine scan. It is characterized by controlling.

To achieve the above object, according to the present invention, image information of a transparent original is read by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. An image reading method applied to an image reading apparatus, comprising: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent document; and a control step of controlling reading of image information from the transparent document. And an operation mode in which the image information is not read by the light in the second wavelength region when reading the image information of the transparent original is selectable.

To achieve the above object, according to the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength region is visible light, The light in the two wavelength region is infrared light.

In order to achieve the above object, according to the present invention, in the control step, the light shielding means is arranged on the light incident side of the light detecting means and cuts the light in the second wavelength region. Is controlled so as to be able to advance and retreat on the optical axis.

According to a twenty-first aspect of the present invention, in the control step, the control means is arranged on a light incident side of the light detecting means, and the light in the first wavelength region and the second wavelength light. It is characterized by controlling the spectral transmission characteristics of the physical element capable of controlling the light transmittance of the region.

In order to achieve the above object, the present invention according to claim 22, wherein the light emitting step comprises: a first light emitting step of emitting light of the first wavelength range; and a light emitting step of emitting light of the second wavelength range. A second light-emitting step, wherein the control step controls lighting / extinguishing in the first and second light-emitting steps of the light-emitting step.

According to a twenty-third aspect of the present invention, in order to achieve the above object, image information of a transparent original is read by a relative reciprocating movement of a transparent original and light detecting means for detecting transmitted light from the transparent original. A computer-readable storage medium storing a program for executing an image reading method applied to an image reading apparatus, the image reading method comprising: a first wavelength region light and a second wavelength region light for a transparent original; A light emitting step of emitting light, and reading image information from a transparent original by light in the first wavelength region by one-way motion in the reciprocating motion, and transparent by light in the second wavelength region by a second motion in the reciprocating motion. And a control step of controlling to read image information from a document.

In order to achieve the above object, according to the present invention, image information of a transparent original is read by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. A computer-readable storage medium storing a program for executing an image reading method applied to an image reading apparatus, the image reading method comprising: a first wavelength region light and a second wavelength region light for a transparent original; A light emitting step of emitting light; and a control step of controlling reading of image information from a transparent original, and an operation mode in which image information is not read by light in the second wavelength region when reading image information of a transparent original. It is characterized by being selectable.

[0037]

Embodiments of the present invention will be described below with reference to the drawings.

[1] First Embodiment FIG. 1 is a configuration diagram showing a configuration of a main part of a film scanner according to a first embodiment of the present invention, and FIG. 2 is a first embodiment of the present invention. FIG. 2 is a perspective view of a main part of the film scanner according to FIG. The film scanner according to the first embodiment of the present invention includes a film carriage 1, a lamp 3, a mirror 4, a lens 5, a line sensor 6, a motor 7, a sensor 8,
Filter 10, filter motor 11, control circuit 12,
A lens holder 13, an outer case 14, an input / output terminal 15,
The configuration includes a density sensor 16 and a filter sensor 17.

The film carriage 1 is used as a document table, and the developed film 2 is fixed on the film carriage 1. The lamp 3 serves as a light source for visible light and infrared light, and has light emission characteristics from a visible light wavelength region to an infrared wavelength. The line sensor 6 is configured by a CCD (charge coupled device) or the like. Light from the lamp 3 passes through the film 2, is reflected by the mirror 4, and is imaged on the line sensor 6 by the lens 5. Further, the line sensor 6 has three light receiving regions of an R light receiving portion, a G light receiving portion, and a B light receiving portion, and has sensitivity to red, green, and blue light wavelengths, respectively. At least one of the portion, the G light receiving portion, and the B light receiving portion also has sensitivity to infrared light.

The motor 7 moves the film carriage 1 in the scanning direction (the direction of the arrow in FIGS. 1 and 2). The sensor 8 detects the position of the film carriage 1. In the figure, reference numeral 9 denotes an optical axis from the lamp 3 to the line sensor 6. The filter 10 is for cutting infrared light, and is held on the optical axis 9 so as to be able to enter and exit. The filter motor 11 moves the filter 10. The control circuit 12 has the configuration of FIG.
The processing shown in the flowchart of FIG. The lens holder 13 holds the lens 5. The outer case 14 houses each part of the film scanner. The input / output terminal 15
The device is connected. The density sensor 16 detects the film density. The filter sensor 17 detects the position of the filter 10. Lamp 3, line sensor 6, motor 7, sensor 8, filter motor 11, input / output terminal 1
5. The concentration sensor 16 and the filter sensor 17 are electrically connected to the control circuit 12.

FIG. 3 is a block diagram showing a circuit configuration of the film scanner according to the first embodiment of the present invention. The control circuit 12 of the film scanner according to the first embodiment of the present invention includes a film scanner control circuit 18, a sensor control circuit 19, a motor control circuit 20, and an image information processing circuit 2.
1, lamp control circuit 22, image information storage circuit 23, line sensor control circuit 24, film density detection circuit 25, motor drive speed determination circuit 26, filter motor control circuit 27, filter sensor control circuit 28, density sensor control circuit 29.

The function of each section will be described. The film scanner control circuit 18 controls the circuits 19 to 29 as a whole. The sensor control circuit 19 detects the position of the film carriage 1 based on the detection signal of the sensor 8. The motor control circuit 20 drives and controls the motor 7 to move the film carriage 1 in the scanning direction. The image information processing circuit 21 performs image information processing for correcting the range of dust and flaws in the image information of the film 2. The lamp control circuit 22 includes:
The lighting / extinguishing of the lamp 3 is controlled. Image information storage circuit 2
Reference numeral 3 stores the range information of dust and flaws on the film 2.

The line sensor control circuit 24 controls the line sensor 6 and takes in image information from the line sensor 6.
The film density detection circuit 25 detects a film density based on a detection signal of the density sensor 16. The motor drive speed determination circuit 26 determines the drive speed of the motor 7. The filter motor control circuit 27 drives and controls the filter motor 11 to move the filter 10. The filter sensor control circuit 28 detects the position of the filter 10 based on the detection signal of the filter sensor 17. The density sensor control circuit 29 controls the density sensor 16.

Incidentally, each constituent element in the claims, the first embodiment of the present invention, and the second and third embodiments described later are described.
Correspondence with each part of the film scanner according to the embodiment is as follows. That is, the light detecting means corresponds to the line sensors 6, 36, 66, and the light emitting means corresponds to the lamps 3, 3
3, corresponding to the lamp unit 63, the control means corresponds to the control circuits 12, 41, 72, the light shielding means corresponds to the filter 10, and the physical element corresponds to the physical element 40.

Next, the first embodiment of the present invention configured as described above is described.
An image reading method of the film 2 in the film scanner according to the embodiment will be described with reference to FIGS. FIGS. 4 and 5 are flowcharts for controlling the operation of the film scanner according to the first embodiment of the present invention.

First, when a film reading operation command is input from the outside through the input / output terminal 15, the position of the film carriage 1 is detected by the sensor 8 and the sensor control circuit 19, and this information is transmitted to the film scanner control circuit 18. Is done. Next, the motor 7 is driven by the motor control circuit 20 to move the film carriage 1 to the standby position in order to make the film carriage 1 standby at the predetermined standby position. At the same time, the position of the filter 10 is detected by the filter sensor 17 and the filter sensor control circuit 28, and this information is transmitted to the film scanner control circuit 18.
Next, in order to retract the filter 10 from the optical axis 9,
The filter motor 11 is driven by the filter motor control circuit 27 to move the filter 10 to its retracted position (step S401).

Next, the density of the film 2 is detected by the density sensor 16 and the film density detection circuit 25 (step S402), and the drive speed of the motor 7 for performing scanning is determined by the motor drive speed determination circuit 26 based on this information. Is performed (step S403). Next, the lamp 3 is turned on by the lamp control circuit 22 (step S40).
4) The motor 7 is rotated in a predetermined direction by the motor control circuit 20 at the previously determined driving speed, and a scanning operation for obtaining image information of the film 2 by infrared light is performed (step S405).

During this scanning, the image information is transmitted from the line sensor 6 to the image information processing circuit 21 through the line sensor control circuit 24, and the transmission state of the infrared light, that is, the image information is transmitted from most other areas on the film 2. By detecting an area on the film 2 where the transmittance of infrared light differs by a predetermined value or more, the range of dust and flaws on the film 2 is detected (step S406). Next, the range information of the dust and flaws is transmitted to and stored in the image information storage circuit 23 (Step S).
407).

When the scanning operation for obtaining the image information of the film 2 by infrared light, that is, the information on the range of dust and flaws is completed, the position of the filter 10 is detected by the filter sensor 17 and the filter sensor control circuit 28. Meanwhile, the filter motor control circuit 28 causes the filter motor 11 to reach a position covering the light flux centered on the optical axis 9.
Is driven to move the filter 10 to its cover position (step S408). Next, the motor 7 is rotated in the reverse direction by the motor control circuit 20 at the previously determined driving speed, and a scanning operation for obtaining image information of the film 2 by visible light is performed (step S409). During this scan, image information is transmitted from the line sensor 6 to the image information processing circuit 21 through the line sensor control circuit 24.

When this scanning operation is completed, the lamp 3 is turned off by the lamp control circuit 22 and, at the same time, the range information of dust and flaws is transmitted from the image information storage circuit 23 to the image information processing circuit 21, where it becomes visible. Image information processing for correcting the range of dust and flaws in the image information of the film 2 by light is performed (step S410). And the input / output terminal 15
Then, image information is output (step S411), and the film image reading operation of the film scanner ends.

Here, in the above-described first embodiment of the present invention, the range information of dust and flaws on the film 2 and the image information of the film 2 by the visible light are separately output from the input / output terminal 15, Image information for correcting the range of dust and flaws in the image information of the film 2 by visible light may be performed by a device (not shown) connected to the input / output terminal 15.

In the first embodiment of the present invention, the scanning operation for obtaining the image information of the film 2 by the visible light is performed prior to the scanning operation for obtaining the image information of the film 2 by the infrared light. May be performed. However, in this case, the image information of the film 2 by the visible light is stored in the image information storage circuit 23.

In the first embodiment of the present invention, the scanning operation using infrared light, that is, the scanning operation for obtaining the range information of dust and flaws is not performed, and the image information of the film 2 using visible light is not used. For example, an operation mode for performing only the scan operation may be provided so that this operation mode can be selected. In this manner, when scanning a film having almost no dust or scratches, or when it is not necessary to correct dust or scratches in an output image, image information for correcting the range of dust or scratches in the image information of the film 2 is used. The effect is obtained that the time required for image information processing for obtaining image information of the film 2 by visible light can be reduced without performing the processing.

As described above, according to the film scanner according to the first embodiment of the present invention, the lamp 3 having the emission characteristic from the visible light wavelength region to the infrared wavelength, and the transmitted light from the film 2 A line sensor 6 on which an image is formed, a filter 10 which is arranged on the light incident side of the line sensor 6 and is held so as to be able to enter and exit on the optical axis 9 and cuts infrared light, and a film 2 made of infrared light. Scan operation for obtaining image information, detection of range of dust and flaw on film 2, scanning operation for obtaining image information of film 2 by visible light, range of dust and flaw of image information of film 2 by visible light And the control circuit 12 that performs the correction of the above, the following effects can be obtained.

In the above arrangement, image information is read by visible light by one of the relative reciprocating motions of the film 2 as a transparent original and the line sensor 6, and infrared light is read by the other reciprocating motion. Since the image information is read, it is necessary to separately perform the relative reciprocation of the film 2 and the line sensor 6 for reading the image information by visible light and the reciprocation of the image information by infrared light. Thus, there is an effect that a film image reading apparatus capable of performing a scanning operation using infrared light for obtaining a film image free of dust and scratches in a shorter time than before can be provided with a simple configuration.

An operation mode in which image information is not read by infrared light at the time of reading image information of the film 2 is provided, and by selecting this operation mode, a film having almost no dust and flaws is scanned. An image for obtaining film image information by visible light without performing image processing for correcting the range of dust and flaws in the film image information when it is not necessary to correct dust and flaws in the output image. There is an effect that the time required for information processing can be reduced.

[2] Second Embodiment FIG. 6 is a configuration diagram showing a main part of a film scanner according to a second embodiment of the present invention, and FIG. 7 is a second embodiment of the present invention. FIG. 2 is a perspective view of a main part of the film scanner according to FIG. The film scanner according to the second embodiment of the present invention includes a film carriage 31, a lamp 33, a mirror 34, a lens 35, a line sensor 36, a motor 37,
It is configured to include a sensor 38, a physical element 40, a control circuit 41, a lens holder 42, an outer case 43, and an input / output terminal 44.

The structure of each section will be described in detail. The film carriage 31 is used as a document table.
The developed film 32 is fixed on the film carriage 31. The lamp 33 serves as a light source for visible light and infrared light, and has light emission characteristics from a visible light wavelength region to an infrared wavelength. The line sensor 36 is configured by a CCD (charge coupled device) or the like. Light from the lamp 33 passes through the film 32, is reflected by the mirror 34, and is reflected by the lens 35.
Thus, an image is formed on the line sensor 36. The line sensor 36 has three light receiving areas of an R light receiving part, a G light receiving part, and a B light receiving part, and has sensitivity to red, green, and blue light wavelengths, respectively. At least one of the portion, the G light receiving portion, and the B light receiving portion also has sensitivity to infrared light.

The motor 37 moves the film carriage 31 in the scanning direction (the direction of the arrow in FIGS. 6 and 7). The sensor 38 detects the position of the film carriage 31. In the figure, reference numeral 39 denotes an optical axis from the lamp 33 to the line sensor 36. The physical element 40 is a physical element such as electrochromy (EC) that can electrically control the transmittance of visible light and infrared light. The control circuit 41 has the configuration of FIG. 8 and executes the processing shown in the flowcharts of FIGS. Lens holder 42
Holds the lens 35. The outer case 43 accommodates each part of the film scanner. A device is connected to the input / output terminal 44. The above-mentioned lamp 33 and line sensor 3
6, the motor 37, the sensor 38, the physical element 40, and the input / output terminal 44 are electrically connected to the control circuit 41.

FIG. 8 is a block diagram showing a circuit configuration of a film scanner according to the second embodiment of the present invention. The control circuit 41 of the film scanner according to the second embodiment of the present invention includes a film scanner control circuit 45, a sensor control circuit 46, a motor control circuit 47, and an image information processing circuit 4.
8, a lamp control circuit 49, an image information storage circuit 50, a line sensor control circuit 51, a film density detection circuit 52, a motor drive speed determination circuit 53, and a physical element control circuit 54.

The function of each of the above components will be described. The film scanner control circuit 45 controls the above circuits 46 to 54 as a whole. The sensor control circuit 46 detects the position of the film carriage 31 based on the detection signal of the sensor 38. The motor control circuit 47 drives and controls the motor 37 to move the film carriage 31 in the scanning direction. The image information processing circuit 48 performs image information processing for correcting the range of dust and flaws in the image information of the film 32.

The lamp control circuit 49 controls turning on / off of the lamp 33. The image information storage circuit 50 stores range information of dust and flaws on the film 32. The line sensor control circuit 51 controls the line sensor 36 and takes in image information from the line sensor 36. The film density detection circuit 52 detects the film density. The motor drive speed determination circuit 53 determines the drive speed of the motor 37. The physical property element control circuit 54 controls the physical property element 40.

Next, the second embodiment of the present invention configured as described above
An image reading method of the film 32 in the film scanner according to the embodiment will be described with reference to FIGS. 9 and 10 are flowcharts for controlling the operation of the film scanner according to the second embodiment of the present invention, and FIGS. 11 and 12 are infrared light transmission of the physical element according to the second embodiment of the present invention. FIG. 13 is an explanatory diagram showing a spectral transmission characteristic in a state, and FIG. 13 is an explanatory diagram showing a spectral transmission characteristic in an infrared light non-transmissive state of the physical property element according to the second embodiment of the present invention.

First, when an instruction for a film reading operation is inputted from the outside through the input / output terminal 44, the position of the film carriage 31 is detected by the sensor 38 and the sensor control circuit 46, and this information is transmitted to the film scanner control circuit 45. Is done. Next, the motor 37 is driven by the motor control circuit 47 to move the film carriage 31 to the standby position in order to cause the film carriage 31 to wait at the predetermined standby position. At the same time, the physical property element control circuit 54 sets the spectral transmission characteristics of the physical property element 40 to the infrared light transmitting state as shown in FIGS. 11 and 12 (step S90).
1).

Next, the lamp 33 is turned on by the lamp control circuit 49 (step S902), and the motor 37 is controlled by the motor control circuit 47 to scan the image area of the film 32 in the direction of the film surface at a predetermined speed. The scanning operation is performed to obtain the image information of the film 32 by the infrared light (step S90).
3).

During this scan, the image information is transmitted from the line sensor 36 to the image information processing circuit 48 through the line sensor control circuit 51, and the transmission state of the infrared light, that is, the most of the other area on the film 32, By detecting an area on the film 32 where the transmittance of the infrared light differs by a predetermined value or more, the range of dust and flaws on the film 32 is detected (step S904). Next, the dust and flaw range information is transmitted to and stored in the image information storage circuit 50 (step S905).

When the scanning operation for obtaining the image information of the film 32 by infrared light, that is, the information on the range of dust and flaws is completed, the spectral transmission characteristic of the physical element 40 is shown in FIG. (Step S906). Next, the motor 37 is rotated in the reverse direction by the motor control circuit 47 at a predetermined driving speed, and a rough scan operation for obtaining image information of the film 32 by visible light is performed (step S907). During this rough scan, the line sensor 36
The image information is transmitted to the image information processing circuit 48 through the line sensor control circuit 51, and the light transmittance of the film 32, that is, the film density is detected by the film density detection circuit 52 based on this information (step S90).
8).

When the film carriage 31 is returned to the standby position and the rough scan operation is completed, the motor drive speed determination circuit 53 performs fine scan so that an image of an appropriate light amount can be obtained based on the detected film density of the entire region of the film. The motor drive speed at the time is determined (step S
909). Next, the motor control circuit 47 rotates the motor 37 in a predetermined direction at the determined motor drive speed to perform a fine scan operation (step S91).
0). During this fine scan, image information is transmitted from the line sensor 36 to the image information processing circuit 48 through the line sensor control circuit 51.

Then, the image reading operation for fine scanning is completed, and the motor control circuit 47 is driven at a predetermined driving speed.
To rotate the motor 37 in the opposite direction, and the film carriage 31 is returned to its standby position (step S91).
1) When the fine scan operation is completed, the lamp 33 is turned off by the lamp control circuit 49, and at the same time, the information on the range of dust and flaws is transmitted from the image information storage circuit 50 to the image information processing circuit 48. Image information processing for correcting the range of dust and flaws in the image information of the film 32 by scanning (visible light) is performed (step S91).
2). Then, image information is output from the input / output terminal 44 (step S913), and the film image reading operation of the film scanner ends.

Here, in the above-described second embodiment of the present invention, the range information of dust and flaws on the film 32 and the image information of the film 32 by visible light are separately output from the input / output terminal 44. Alternatively, image information for correcting the range of dust or flaws in the image information of the film 32 by visible light may be performed by a device (not shown) connected to the input / output terminal 44.

In the second embodiment of the present invention, after the scanning operation for obtaining the image information of the film 32 by the infrared light is performed by moving the film carriage 31 in one direction, the return operation is performed. Is performed (movement of the film carriage 31 in the opposite direction), the rough scan operation is performed by moving the film carriage 31 in one direction, and then the return operation (film movement) is performed. (The movement of the carriage 31 in the opposite direction)
, A scanning operation for obtaining image information of the film 32 by infrared light may be performed. However, in this case, the image information of the film 32 by the visible light is stored in the image information storage circuit 50.

In the second embodiment of the present invention, the scanning operation for obtaining the image information of the film 32 by the infrared light is not performed by the reciprocating operation of the film carriage 31 at the time of the rough scanning, but the fine operation is performed. The reciprocating operation of the film carriage 31 during the scanning operation may be performed. At this time, either the scanning operation for obtaining the image information of the film 32 by the infrared light or the fine scanning operation may be performed first. However, when the fine scan operation is performed first, the image information of the film 32 by the visible light is stored in the image information storage circuit 50.

In the second embodiment of the present invention, there is provided an operation mode in which the scanning operation for the image information of the film 32 by the visible light alone is performed without performing the scanning operation by the infrared light. The mode may be selectable. In this way, when scanning a film with almost no dust or scratches, or when it is not necessary to correct dust or scratches in the output image, image information for correcting the range of dust or scratches in the image information of the film 32 is used. The effect is obtained that the time required for image information processing for obtaining image information of the film 32 by visible light can be reduced without performing the processing.

As described above, according to the film scanner according to the second embodiment of the present invention, the lamp 33 having the emission characteristics from the visible light wavelength region to the infrared wavelength, and the transmitted light from the film 32 Line sensor 36 on which an image is formed
And a physical element 4 disposed on the light incident side of the line sensor 36 and capable of electrically controlling the transmittance of visible light and infrared light.
0 and the infrared transmission state of the spectral transmission characteristics of the physical element 40 /
Setting to infrared light opaque state, film 32 by infrared light
Scan operation to obtain the image information of the film 32, detection of the range of dust and flaws on the film 32, rough scan operation to obtain the image information of the film 32 by visible light, image on the film 32 by visible light with specified image quality Since the control circuit 41 executes a fine scan operation for obtaining information, and corrects a range of dust and flaws in the image information of the film 32 by fine scan (visible light), the following effects are obtained.

In the above configuration, reading of the image information of the film 32 which is a transparent original is performed by performing a rough scan using visible light for obtaining general image information of the film 32 and obtaining image information of the film 32 with a designated image quality. In order to obtain a film image free from dust and flaws in a shorter time than in the past, three scans, namely, a fine scan using visible light and an infrared light scan for reading image information of the film 32 using infrared light are performed. There is an effect that a film image reading device capable of performing a scanning operation by infrared light can be provided with a simple configuration.

An operation mode in which image information is not read by infrared light at the time of reading image information of the film 32 is provided, and by selecting this operation mode, a film having almost no dust or scratches can be scanned. An image for obtaining film image information by visible light without performing image processing for correcting the range of dust and flaws in the film image information when it is not necessary to correct dust and flaws in the output image. There is an effect that the time required for information processing can be reduced.

[3] Third Embodiment FIG. 14 is a configuration diagram showing a configuration of a main part of a film scanner according to a third embodiment of the present invention, and FIG.
FIG. 19 is a perspective view of a main part of the film scanner according to the third embodiment, and FIG. 19 is an explanatory diagram showing an emission spectrum intensity distribution of a visible light emitting portion of the lamp unit according to the third embodiment of the present invention. FIG. 9 is an explanatory diagram showing an emission spectrum intensity distribution of an infrared light emitting section of a lamp unit according to a third embodiment of the present invention. The film scanner according to the third embodiment of the present invention includes a film carriage 61, a lamp unit 63, a mirror 64, a lens 65, a line sensor 66, a motor 67, a sensor 68, a control circuit 72, a lens holder 73, and an outer case 74. , An input / output terminal 75, and a density sensor 76.

The structure of each section will be described in detail. The film carriage 61 is used as a document table.
The developed film 62 is fixed on a film carriage 61. The lamp unit 63 includes a visible light emitting section 63a having an emission spectrum intensity distribution as shown in FIG. 19 and an infrared light emitting section 63b having an emission spectrum intensity distribution as shown in FIG. The line sensor 66 is configured by a CCD (charge coupled device) or the like. The light from the lamp unit 63 is applied to the film 6
2 is reflected by the mirror 64 and is imaged on the line sensor 66 by the lens 65. Also, the line sensor 6
Numeral 6 has three light receiving areas, an R light receiving part, a G light receiving part, and a B light receiving part, which are sensitive to red, green, and blue light wavelengths, respectively. At least one of the portion and the B light receiving portion also has sensitivity to infrared light.

The motor 67 scans the film carriage 61 in the scanning direction (the direction of the arrow in FIGS. 14 and 15).
Move to The sensor 68 includes a film carriage 61
Detect the position of. In the figure, reference numeral 69 denotes an optical axis from the lamp unit 63 to the line sensor 66. The control circuit 72
It has the configuration of FIG. 16 and executes the processing shown in the flowcharts of FIGS. The lens holder 73 is
The lens 65 is held. The outer case 74 houses each part of the film scanner. A device is connected to the input / output terminal 75. The density sensor 76 detects the film density. The above-mentioned lamp unit 63, line sensor 66, motor 67, sensor 68, input / output terminal 75, density sensor 7
6 is electrically connected to the control circuit 72.

FIG. 16 is a block diagram showing a circuit configuration of a film scanner according to the third embodiment of the present invention.
The control circuit 72 of the film scanner according to the third embodiment of the present invention includes a film scanner control circuit 77, a sensor control circuit 78, a motor control circuit 79, an image information processing circuit 80, a lamp unit control circuit 81, and image information storage. It comprises a circuit 82, a line sensor control circuit 83, a film density detection circuit 84, a motor drive speed determination circuit 85, and a density sensor control circuit 86.

The function of each section will be described. The film scanner control circuit 77 controls the circuits 78 to 86 as a whole. The sensor control circuit 78 detects the position of the film carriage 61 based on the detection signal of the sensor 68. The motor control circuit 79 drives and controls the motor 67 to move the film carriage 61 in the scanning direction. The image information processing circuit 80 performs image information processing for correcting the range of dust and flaws in the image information of the film 62.

The lamp unit control circuit 81 controls turning on / off of the lamp unit 63. The image information storage circuit 82 stores range information of dust and flaws on the film 62. The line sensor control circuit 83 controls the line sensor 66 and takes in image information from the line sensor 66. The film density detection circuit 84 detects the film density. The motor drive speed determination circuit 85 determines the drive speed of the motor 67. The density sensor control circuit 86
Control.

Next, the third embodiment of the present invention configured as described above
An image reading method of the film 62 in the film scanner according to the embodiment will be described with reference to FIGS. 17 and 18 are flowcharts for controlling the operation of the film scanner according to the third embodiment of the present invention.

First, when a film reading operation command is input from the outside through the input / output terminal 75, the position of the film carriage 61 is detected by the sensor 68 and the sensor control circuit 78, and this information is transmitted to the film scanner control circuit 77. Is done. Next, the motor 67 is driven by the motor control circuit 79 to move the film carriage 61 to the standby position (step S1701).

Next, the density of the film 62 is detected by the density sensor 76 and the film density detection circuit 84 (step S1702), and the drive speed of the motor 67 for performing scanning is determined by the motor drive speed determination circuit 85 based on this information. Is performed (step S1703). Next, the infrared light emitting section 63b of the lamp unit 63 is turned on by the lamp unit control circuit 81 (step S1704),
The motor 67 is rotated in a predetermined direction by the motor control circuit 79 at the previously determined driving speed, and a scanning operation for obtaining image information of the film 62 by infrared light is performed (step S1705).

During this scanning, the image information is transmitted from the line sensor 66 to the image information processing circuit 80 through the line sensor control circuit 83, and the transmission state of the infrared light, that is, the image information is transmitted from most other areas on the film 62. By detecting an area on the film 62 where the transmittance of the infrared light differs by a predetermined value or more, the range of dust and flaws on the film 62 is detected (step S1706). Next, the dust and flaw range information is transmitted to and stored in the image information storage circuit 82 (step S1707).

When the scanning operation for obtaining the image information of the film 62 by the infrared light, that is, the information on the range of dust and flaws is completed, the lamp unit control circuit 81 turns off the infrared light emitting portion 63b of the lamp unit 63. Lighted,
Next, the visible light emitting portion 63a of the lamp unit 63 is turned on by the lamp unit control circuit 81 (step S1).
708). Next, the motor 67 is rotated in the reverse direction by the motor control circuit 79 at the previously determined drive speed, and a scan operation for obtaining image information of the film 62 by visible light is performed (step S1709). During this scan, image information is transmitted from the line sensor 66 to the image information processing circuit 80 through the line sensor control circuit 83.

When this scanning operation is completed, the visible light emitting portion 63a of the lamp unit 63 is turned off by the lamp unit control circuit 81, and at the same time, the information on the range of dust and flaws is transmitted from the image information storage circuit 82 to the image information processing circuit. 80, where image information processing for correcting the range of dust and flaws in the image information of the film 63 by visible light is performed (step S1710). Then, image information is output from the input / output terminal 75 (step S1711), and the film image reading operation of the film scanner ends.

Here, in the above-described third embodiment of the present invention, similarly to the other embodiments, the range information of dust and flaws on the film 62 and the image information of the film 62 by visible light are separated. May be output from the input / output terminal 75, and image information for correcting the range of dust or flaws in the image information of the film 62 by visible light may be performed by a device (not shown) connected to the input / output terminal 44.

In the third embodiment of the present invention, the scanning operation for obtaining the image information of the film 62 by the visible light is performed prior to the scanning operation for obtaining the image information of the film 62 by the infrared light. May be performed. However, in this case, the image information of the film 62 by the visible light is stored in the image information storage circuit 82.

Further, in the third embodiment of the present invention, there is provided an operation mode in which the scanning operation for the image information of the film 62 by the visible light alone is performed without performing the scanning operation by the infrared light. The mode may be selectable. In this manner, when scanning a film with almost no dust or scratches, or when it is not necessary to correct dust or scratches in an output image, image information for correcting the range of dust or scratches in the image information of the film 62 can be used. The effect is obtained that the time required for image information processing for obtaining image information of the film 62 by visible light can be reduced without performing the processing.

As described above, according to the film scanner according to the third embodiment of the present invention, the lamp unit 63 composed of the visible light emitting section 63a and the infrared light emitting section 63b and the film 62 The line sensor 66 on which the transmitted light is formed, the visible light emitting portion 63a and the infrared light emitting portion 63b of the lamp unit 63 are turned on / off, and scanning for obtaining image information of the film 62 by infrared light. Control for detecting the range of dust and flaws on the film 62, scanning operation for obtaining image information of the film 62 by visible light, and correcting the range of dust and flaws on the image information of the film 63 by visible light Having the circuit 72,
The following effects are obtained.

In the above arrangement, the scanning operation for obtaining the image information of the film 62 by the infrared light is performed by turning on the infrared light emitting portion 63b of the lamp unit 63. The scanning operation for obtaining the image information of the film 62 by the visible light is performed by turning on the light emitting unit 63a, so that the infrared light for obtaining the film image free from dust and flaws in a shorter time than in the related art. There is an effect that it is possible to provide a film image reading apparatus capable of performing a scanning operation by using a simple configuration.

Further, an operation mode in which image information is not read by infrared light when image information of the film 62 is read is provided, and by selecting this operation mode, a film having almost no dust and flaws is scanned. An image for obtaining film image information by visible light without performing image processing for correcting the range of dust and flaws in the film image information when it is not necessary to correct dust and flaws in the output image. There is an effect that the time required for information processing can be reduced.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. A storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or an apparatus, and a computer (or CPU or MPU) of the system or the apparatus executes the program code stored in the storage medium. Needless to say, this can also be achieved by executing the reading.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

Examples of a storage medium for supplying the program code include a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, and CD.
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program codes, not only the functions of the above-described embodiment are realized, but also the OS or the like running on the computer is actually executed based on the instructions of the program codes. It goes without saying that a part or all of the above-described processing is performed, and the functions of the above-described embodiments are realized by the processing.

Further, after the program code read from the storage medium is written into a memory provided on a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the processing realizes the functions of the above-described embodiments.

[0100]

As described above, according to the image reading apparatus of the present invention, the transparent document and the light detecting means for detecting the transmitted light from the transparent document are reciprocated by the relative reciprocating motion. What is claimed is: 1. An image reading apparatus for reading image information of a document, comprising: a light emitting unit that emits light of a first wavelength range and light of a second wavelength range on a transparent document; Control means for reading out the image information from the transparent original by the light of the second direction and reading the image information from the transparent original by the light in the second wavelength region by the movement to the other side in the reciprocating movement. It works. The relative reciprocation of the transparent document and the light detection means for reading image information by visible light and the reciprocation of image information by infrared light need not be performed separately, which is shorter than before. Thus, there is an effect that an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (image of a developed photographic film or the like) free from dust and scratches can be provided with a simple configuration.

According to the image reading apparatus of the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength region is visible light, and the second wavelength is Since the light in the region is infrared light, the following effects are obtained. As described above, there is an effect that an image reading apparatus capable of performing a scanning operation for obtaining a film image free of dust and flaws in a shorter time than in the past can be provided with a simple configuration.

According to the third aspect of the present invention, the control means includes a rough scan for obtaining rough image information of the transparent original by visible light, and an image information of the transparent original with a designated image quality by visible light. Since the control is performed so that the image information is read from the transparent original by the fine scan for obtaining the image and the infrared light scan for obtaining the image information of the transparent original by the infrared light, the following effects are obtained. In image reading devices that can perform rough scan and fine scan with visible light,
To provide an image reading apparatus with a simple configuration capable of performing a scanning operation using infrared light for obtaining a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that can be.

According to the image reading apparatus of the present invention, the control means may perform one of the two reciprocating movements for performing the rough scan and the fine scan. To control
The following effects are obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading apparatus of the present invention, the control means controls the infrared light scan by performing one-way movement of the reciprocating movement for performing the rough scan. Therefore, the following effects are obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading apparatus of the present invention, the control means controls the infrared light scanning by one-way movement of the reciprocating movement for performing the fine scanning. Therefore, the following effects are obtained.
In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading apparatus of the present invention, an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting light transmitted from the transparent original. An apparatus, comprising: a light emitting unit that emits light of a first wavelength region and light of a second wavelength region to a transparent original; and control unit that controls reading of image information from the transparent original. Since the operation mode in which the image information is not read by the light of the second wavelength region when reading the image data can be selected, the following effects are obtained. When scanning a transparent original (developed photographic film, etc.) with almost no dust or scratches, or when it is not necessary to correct dust or scratches on the output image, dust on the image information of the transparent original (developed photographic film, etc.) Transparent originals (visible photographic film, etc.) using visible light without performing image processing to correct the range of defects and flaws
There is an effect that the time required for image information processing for obtaining the image information can be reduced.

According to the image reading apparatus of the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength region is visible light, and the second wavelength is Since the light in the region is infrared light, the following effects are obtained. Similarly to the above, when scanning a film having almost no dust or scratches, or when it is not necessary to correct dust or scratches in an output image, image processing for correcting the range of dust or scratches in the image information of the film is performed. Instead, there is an effect that the time required for image information processing for obtaining image information of a film by visible light can be reduced.

According to the ninth aspect of the present invention, there is provided the image reading apparatus, wherein the control means includes a light shielding means which is disposed on the light incident side of the light detecting means and cuts the light in the second wavelength region. Has the following effects because the light shielding means is controlled so as to be able to advance and retreat on the optical axis. As described above, an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (an image of a developed photographic film or the like) free of dust and scratches in a shorter time than in the related art is provided with a simple configuration. There is an effect that can be.

According to the tenth aspect of the present invention, the image reading apparatus is disposed on the light incident side of the light detecting means and has a transmittance of the light of the first wavelength region and the light of the second wavelength region. It has a controllable physical element, and the control means has the following effects because it controls the spectral transmission characteristics of the physical element. As above, a transparent original image (image of developed photographic film, etc.) with less dust and scratches in a shorter time than before
There is an effect that it is possible to provide an image reading apparatus capable of performing a scanning operation for obtaining the image with a simple configuration.

According to the image reading apparatus of the present invention, the light-emitting means includes a first light-emitting unit that emits light in the first wavelength region and a light-emitting unit that emits light in the second wavelength region. The light-emitting unit has two light-emitting units, and the control unit controls lighting / extinguishing of the first and second light-emitting units of the light-emitting unit. As described above, an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (an image of a developed photographic film or the like) free of dust and scratches in a shorter time than in the related art is provided with a simple configuration. There is an effect that can be.

According to the twelfth aspect of the present invention, there is provided an image reading method for reading image information of a transparent original by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. An image reading method applied to an apparatus, comprising: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent original; Controlling the image information to be read from the transparent document by reading the image information from the transparent document by light and reading the image information from the transparent document by the light in the second wavelength region in the other movement of the reciprocating motion. To play. The relative reciprocation of the transparent document and the light detection means for reading image information by visible light and the reciprocation of image information by infrared light need not be performed separately, which is shorter than before. Original image with no dust and scratches (image of developed photographic film etc.)
There is an effect that it is possible to provide an image reading apparatus capable of performing a scanning operation for obtaining the image with a simple configuration.

According to the image reading method of the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength region is visible light, and the second wavelength is Since the light in the region is infrared light, the following effects are obtained. As described above, there is an effect that an image reading apparatus capable of performing a scanning operation for obtaining a film image free of dust and flaws in a shorter time than in the past can be provided with a simple configuration.

According to a fourteenth aspect of the present invention, in the control step, the rough scanning for obtaining approximate image information of the transparent original by visible light, and the image information of the transparent original with a designated image quality by visible light. Since the control is performed so that the image information is read from the transparent original by the fine scan for obtaining the image and the infrared light scan for obtaining the image information of the transparent original by the infrared light, the following effects are obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading method of the present invention, in the control step, the infrared light scanning is performed in one of the two reciprocating motions for performing the rough scan and the fine scan. Therefore, the following effects can be obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading method of the present invention, in the control step, the infrared light scanning is controlled by one-way movement of the reciprocating movement for performing the rough scanning. Therefore, the following effects are obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading method of the present invention, in the control step, the infrared light scan is controlled by one-way movement of the reciprocating movement for performing the fine scan. Therefore, the following effects are obtained. In an image reading device capable of performing rough scan and fine scan with visible light, scanning with infrared light to obtain a transparent original image (image of a developed photographic film or the like) free of dust and scratches in a shorter time than before. There is an effect that an image reading device capable of performing an operation can be provided with a simple configuration.

According to the image reading method of the present invention, an image reading method for reading image information of a transparent original by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. An image reading method applied to an apparatus, comprising: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent document; and a control step of controlling reading of image information from the transparent document. Since an operation mode in which image information is not read by light in the second wavelength region when image information of a transparent document is read can be selected,
The following effects are obtained. When scanning a transparent original (developed photographic film, etc.) with almost no dust or scratches, or when it is not necessary to correct dust or scratches on the output image, dust on the image information of the transparent original (developed photographic film, etc.) There is an effect that the time required for image information processing for obtaining image information of a transparent original (developed photographic film or the like) using visible light can be shortened without performing image processing for correcting the range of flaws and flaws.

According to the image reading method of the present invention, the transparent original is an original such as a developed photographic film, the light in the first wavelength range is visible light, and the second wavelength is light. Since the light in the region is infrared light, the following effects are obtained. Similarly to the above, when scanning a film having almost no dust or scratches, or when it is not necessary to correct dust or scratches in an output image, image processing for correcting the range of dust or scratches in the image information of the film is performed. Instead, there is an effect that the time required for image information processing for obtaining image information of a film by visible light can be reduced.

According to the twentieth aspect of the present invention, in the image reading method, in the controlling step, the light shielding means which is disposed on the light incident side of the light detecting means and cuts the light in the second wavelength region is controlled by the light. The following effects are obtained because the control is performed so as to be able to move back and forth on the shaft. As described above, an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (an image of a developed photographic film or the like) free of dust and scratches in a shorter time than in the related art is provided with a simple configuration. There is an effect that can be.

According to the image reading method of the present invention, in the control step, the light is disposed on the light incident side of the light detecting means and the light in the first wavelength region and the light in the second wavelength region are arranged. Controlling the spectral transmission characteristics of the physical element capable of controlling the light transmittance has the following effects. As described above, an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (an image of a developed photographic film or the like) free of dust and scratches in a shorter time than in the related art is provided with a simple configuration. There is an effect that can be.

According to the image reading method of the present invention, the light emitting step includes a first light emitting step of emitting light of the first wavelength region and a light emitting step of emitting light of the second wavelength region. There are two light emission steps. In the control step, the lighting / extinguishing in the first and second light emission steps of the light emission step is controlled. As described above, a transparent original image (image of developed photographic film, etc.) in a shorter time than before with no dust or scratches
There is an effect that it is possible to provide an image reading apparatus capable of performing a scanning operation for obtaining the image with a simple configuration.

According to the storage medium of the present invention, an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting light transmitted from the transparent original. A computer-readable storage medium storing a program that executes an image reading method applied to a transparent document, wherein the image reading method emits light in a first wavelength region and light in a second wavelength region on a transparent original. In the light emitting step, the image information is read from the transparent document by the light in the first wavelength region in one of the reciprocating motions, and the image is read from the transparent document by the light in the second wavelength region in the other motion in the reciprocating motion. And a control step of controlling to read the information, the following effects are obtained. The relative reciprocating motion of the transparent document and the light detecting means for reading image information by visible light and the reciprocating motion for reading image information by infrared light do not need to be performed separately. Thus, there is an effect that an image reading apparatus capable of performing a scanning operation for obtaining a transparent original image (image of a developed photographic film or the like) free from dust and scratches can be provided with a simple configuration.

According to the storage medium of the present invention, an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and a light detecting means for detecting transmitted light from the transparent original. A computer-readable storage medium storing a program that executes an image reading method applied to a transparent document, wherein the image reading method emits light in a first wavelength region and light in a second wavelength region on a transparent original. A light emitting step; and a control step of controlling reading of image information from the transparent document, wherein an operation mode in which image information is not read by light in the second wavelength region when reading the image information of the transparent document can be selected. Therefore, the following effects are obtained. When scanning a transparent original (developed photographic film, etc.) with almost no dust or scratches, or when it is not necessary to correct dust or scratches on the output image, dust on the image information of the transparent original (developed photographic film, etc.) There is an effect that the time required for image information processing for obtaining image information of a transparent original (developed photographic film or the like) using visible light can be shortened without performing image processing for correcting the range of flaws and flaws.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of a main part of a film scanner according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the film scanner according to the first embodiment of the present invention as seen through.

FIG. 3 is a block diagram showing a circuit configuration of the film scanner according to the first embodiment of the present invention.

FIG. 4 is a flowchart for controlling the operation of the film scanner according to the first embodiment of the present invention.

FIG. 5 is a flowchart for controlling the operation of the film scanner according to the first embodiment of the present invention.

FIG. 6 is a configuration diagram showing a configuration of a main part of a film scanner according to a second embodiment of the present invention.

FIG. 7 is a perspective view of a main part of a film scanner according to a second embodiment of the invention as seen through.

FIG. 8 is a block diagram showing a circuit configuration of a film scanner according to a second embodiment of the present invention.

FIG. 9 is a flowchart for controlling the operation of the film scanner according to the second embodiment of the present invention.

FIG. 10 is a flowchart for controlling the operation of the film scanner according to the second embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a spectral transmission characteristic of a physical property element according to a second embodiment of the present invention in an infrared light transmitting state.

FIG. 12 is an explanatory diagram illustrating a spectral transmission characteristic of a physical property element according to a second embodiment of the present invention in an infrared light transmitting state.

FIG. 13 is an explanatory diagram showing a spectral transmission characteristic of the physical property element according to the second embodiment of the present invention in a state in which infrared light is not transmitted.

FIG. 14 is a configuration diagram showing a configuration of a main part of a film scanner according to a third embodiment of the present invention.

FIG. 15 is a perspective view of a main part of a film scanner according to a third embodiment of the invention as seen through.

FIG. 16 is a block diagram showing a circuit configuration of a film scanner according to a third embodiment of the present invention.

FIG. 17 is a flowchart for controlling the operation of the film scanner according to the third embodiment of the present invention.

FIG. 18 is a flowchart for controlling the operation of the film scanner according to the third embodiment of the present invention.

FIG. 19 is an explanatory diagram showing an emission spectrum intensity distribution of a visible light emitting portion of the lamp unit according to the third embodiment of the present invention.

FIG. 20 is an explanatory diagram showing an emission spectrum intensity distribution of an infrared light emitting section of the lamp unit according to the third embodiment of the present invention.

FIG. 21 is a configuration diagram showing a configuration of a main part of a film scanner according to a conventional example.

FIG. 22 is a perspective view of a main part of a film scanner according to a conventional example as seen through.

FIG. 23 is a block diagram showing a circuit configuration of a film scanner according to a conventional example.

[Explanation of symbols]

 3, 33 lamp 6, 36, 66 line sensor 10 filter 12, 41, 72 control circuit 40 physical element 63 lamp unit

Claims (24)

[Claims] 1. An image reading apparatus for reading image information of a transparent document by a relative reciprocating motion of a transparent document and light detecting means for detecting light transmitted from the transparent document, wherein the transparent document has a first wavelength region And light emitting means for emitting light in the second wavelength region, and reading the image information from the transparent document by the light in the first wavelength region in one direction in the reciprocating motion, and reading the image information in the other direction in the reciprocating motion. Second
Control means for controlling image information to be read from a transparent original by light in a wavelength region. 2. The method according to claim 1, wherein the transparent original is an original such as a developed photographic film, wherein the light in the first wavelength region is visible light, and the light in the second wavelength region is infrared light. The image reading device according to claim 1. 3. The control means includes: a rough scan for obtaining rough image information of a transparent original by visible light; a fine scan for obtaining image information of a transparent original with a designated image quality by visible light; and an image of a transparent original by infrared light. 3. The image reading apparatus according to claim 1, wherein control is performed such that image information is read from a transparent original by infrared light scanning for obtaining information. 4. The apparatus according to claim 1, wherein the control unit controls the infrared light scan to be performed in one of the two reciprocating motions for performing the rough scan and the fine scan. 3. The image reading device according to 3. 5. The image reading apparatus according to claim 4, wherein the control unit controls the infrared light scanning by performing one-way motion of the reciprocating motion for performing the rough scanning. . 6. The image reading apparatus according to claim 4, wherein the control unit controls the infrared light scan by one-way movement of the reciprocating movement for performing the fine scan. . 7. An image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting transmitted light from the transparent original, wherein the transparent original has a first wavelength region And light control means for controlling reading of image information from a transparent original, and image information by light in the second wavelength range when reading image information of a transparent original. An image reading apparatus characterized in that an operation mode in which scanning is not performed can be selected. 8. The transparent document is a document such as a developed photographic film, wherein the light in the first wavelength region is visible light, and the light in the second wavelength region is infrared light. The image reading device according to claim 7, wherein 9. A light-shielding means disposed on a light incident side of the light detection means and cutting light in the second wavelength range, wherein the control means moves the light-shielding means on and off the optical axis. The image reading device according to claim 1, wherein the image reading device performs control. 10. A physical element disposed on the light incident side of the light detection means and capable of controlling the transmittance of light in the first wavelength region and light in the second wavelength region, wherein the control means The image reading apparatus according to claim 1, wherein a spectral transmission characteristic of the physical element is controlled. 11. The light emitting unit includes a first light emitting unit that emits light in the first wavelength region, and a second light emitting unit that emits light in the second wavelength region. The image reading apparatus according to claim 1, wherein lighting / extinguishing of the first and second light emitting units of the light emitting unit is controlled. 12. An image reading method applied to an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting light transmitted from the transparent original, comprising: A light emitting step of emitting light of a first wavelength region and light of a second wavelength region to the document, and reading the image information from the transparent document by the light of the first wavelength region by one of the reciprocating motions; A control step of reading image information from a transparent original with light in the second wavelength region by the movement to the other side in the step (a). 13. The transparent document is a document such as a developed photographic film, wherein the light in the first wavelength region is visible light, and the light in the second wavelength region is infrared light. The image reading method according to claim 12, wherein: 14. The control step includes: a rough scan for obtaining general image information of a transparent original by visible light; a fine scan for obtaining image information of a transparent original with a designated image quality by visible light; and an image of a transparent original by infrared light. 14. The image reading method according to claim 12, wherein control is performed so that image information is read from a transparent original by infrared light scanning for obtaining information. 15. In the control step, the infrared light scanning is controlled to be performed in one of the two reciprocating motions for performing the rough scan and the fine scan. 15. The image reading method according to item 14. 16. The image reading method according to claim 15, wherein in the control step, the infrared light scan is controlled by one-way movement of the reciprocating movement for performing the rough scan. . 17. The image reading method according to claim 15, wherein in the control step, the infrared light scan is controlled by one-way movement of the reciprocating movement for performing the fine scan. . 18. An image reading method applied to an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting transmitted light from the transparent original, comprising: A light emitting step of emitting light of a first wavelength region and light of a second wavelength region to the document; and a control step of controlling reading of image information from the transparent document. An image reading method, wherein an operation mode in which image information is not read by light in a wavelength region is selectable. 19. The transparent original is an original such as a developed photographic film, wherein the light in the first wavelength region is visible light, and the light in the second wavelength region is infrared light. The image reading method according to claim 18, wherein: 20. In the control step, the light shielding means arranged on the light incident side of the light detection means and for cutting off the light in the second wavelength region is controlled so as to be able to advance and retreat on the optical axis. An image reading method according to claim 12. 21. In the control step, a spectral transmission of a physical element which is arranged on a light incident side of the light detection means and is capable of controlling the transmittance of the light of the first wavelength region and the light of the second wavelength region. 13. The characteristic is controlled.
Or the image reading method according to 18. 22. The light emitting step includes: a first light emitting step of emitting light of the first wavelength region; and a second light emitting step of emitting light of the second wavelength region. 19. The image reading method according to claim 12, wherein lighting / extinguishing in the first and second light emitting steps of the light emitting step is controlled. 23. A program for executing an image reading method applied to an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting light transmitted from the transparent original. A storage medium readable by a computer, wherein the image reading method includes: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent original; Controlling the image information to be read from the transparent document by the light in the first wavelength region and reading the image information from the transparent document by the light in the second wavelength region by the movement in the other direction in the reciprocating motion. A storage medium characterized by the above-mentioned. 24. A program for executing an image reading method applied to an image reading apparatus for reading image information of a transparent original by a relative reciprocating movement of a transparent original and light detecting means for detecting light transmitted from the transparent original. A computer readable storage medium, wherein the image reading method includes: a light emitting step of emitting light of a first wavelength region and light of a second wavelength region to a transparent document; and reading image information from the transparent document. And a control step of controlling, wherein an operation mode in which image information is not read by light in the second wavelength region when image information of a transparent original is read can be selected.