JP2018174506A - Reading device, image display device, processing method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to improve conditions for photographing an object to be photographed.SOLUTION: The reading device includes: a projection unit for projecting an image onto a placement place where an object to be photographed is placed; a photographing unit for photographing the placement place to generate an image; and an area detection unit that detects a photographing target area in a photographing range of the photographing unit. The projection unit irradiates the photographing target area with illumination light for photographing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reading device, an image display device, a processing method, and a program.

Several techniques have been proposed in connection with image projection.
For example, Patent Document 1 describes a projection device that moves a projection image. This projection apparatus changes the projection direction during image projection, and corrects the image to be projected based on the positional relationship between the projection direction and the projection target as the projection direction is changed.

  Further, Patent Document 2 describes an image processing apparatus that displays information toward an imaging area of a scanner device. The image processing apparatus images a placed medium to be read in an imaging area, and directs work support information that supports work using the medium to the imaging area based on the position information of the medium on the imaging area. To display.

JP2015-119419A JP 2013-254437 A

From the viewpoint of reducing distortion of an image projected by an image projection apparatus (projector), it is preferable to project the image on a plane. As a candidate for such a plane, a place where an object to be imaged (scan object) is placed such as a stand for a stand type scanner can be considered.
When the image projecting device projects an image on the place where the object to be photographed is placed, it is more preferable if the photographing conditions can be improved in addition to simply displaying the image.

  It is an object of the present invention to provide a reading device, an image display device, a processing method, and a program that can solve the above-described problems.

  According to the first aspect of the present invention, the reader is configured to project an image onto a placement place that is a place to place a subject to be photographed, and to photograph an image of the placement place described above to generate an image. And a region detecting unit that detects a photographing target region in a photographing range of the photographing unit when a photographing target is placed at the placement location, and the projecting unit is provided in the photographing target region. Irradiate illumination light for shooting.

  According to the second aspect of the present invention, the image display device generates an image by photographing the above-described placement location, and a projection unit that projects an image on the placement location that is the location on which the subject to be photographed is placed. An imaging unit; and an area detection unit that detects an imaging target area in an imaging range of the imaging unit when an imaging object is placed at the installation location, and the projection unit includes the imaging target area Irradiate light for photographing.

  According to the third aspect of the present invention, a processing method includes: a projection unit that projects an image on a placement location that is a location on which a subject to be photographed is placed; and photographing that captures the placement location and generates an image. When the object to be photographed is placed at the installation location, the apparatus includes a photographing object region in the photographing range of the photographing unit and irradiates the photographing target region with illumination light for photographing. Including.

  According to the fourth aspect of the present invention, the program includes a projecting unit that projects an image on a placement place that is a place on which a subject to be photographed is placed, and a photographing unit that photographs the placement place and generates an image. And a computer that controls the apparatus comprising: an imaging target area in the imaging range of the imaging unit is detected when an imaging object is placed at the installation location, and illumination for imaging is performed on the imaging target area A program for controlling the projection unit to irradiate light.

  According to the present invention, it is possible to improve the conditions for photographing an object to be photographed.

It is a figure which shows the structural example of the compound apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of arrangement | positioning of the document detection sensor which concerns on the same embodiment. 5 is a diagram illustrating an example of document detection by a document detection sensor according to the embodiment. FIG. FIG. 10 is a diagram illustrating an example of a processing procedure in which the multifunction apparatus according to the embodiment detects a document and performs image processing. 5 is a flowchart illustrating a first example of a processing procedure for acquiring an image of a document by the multifunction apparatus according to the embodiment. 12 is a flowchart illustrating a second example of a processing procedure for the composite apparatus according to the embodiment to acquire an image of a document. It is a figure which shows the example of the minimum structure of the reader concerning this invention. It is a figure which shows the example of the minimum structure of the image display apparatus which concerns on this invention.

Hereinafter, although embodiment of this invention is described, the following embodiment does not limit the invention concerning a claim. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.
FIG. 1 is a diagram illustrating a configuration example of a composite apparatus according to an embodiment of the present invention. FIG. 1A is a perspective view showing an example of a schematic outer shape of a composite apparatus according to an embodiment of the present invention. As shown in FIG. 1A, the composite apparatus 1 includes a control unit 100, a projector unit 200, a scanner unit 300, and a mounting table 400. The projector unit 200 includes a projector unit casing 210 and a projection unit 220. The scanner unit 300 includes a scanner unit housing 310, a photographing unit 320, and an elevating unit 330.

  Although FIG. 1A shows an example in which the control unit 100, the projector unit 200, and the scanner unit 300 are housed in separate housings, the apparatus configuration in the composite apparatus 1 is not limited to this. For example, any two or all three of the control unit 100, the projector unit 200, and the scanner unit 300 may be housed in the same casing.

The composite device 1 functions as an image display device (projector) and a reading device (scanner). Specifically, the composite apparatus 1 projects an image from the projector unit 200 onto the mounting table 400. In addition, the object to be imaged placed on the mounting table 400 is imaged by the scanner unit 300 to generate an image of the object to be imaged.
The control unit 100 controls the projector unit 200 and the scanner unit 300 to function as an image display device and a reading device. When the scanner unit 300 performs shooting, the control unit 100 controls the projector unit 200 to function as an illumination device.

The projector unit 200 projects an image on the mounting table 400. When the object to be photographed is placed on the mounting table 400, the projector unit 200 irradiates the illumination light to the area where the object to be photographed is placed, and projects an image on the other area.
FIG. 1A shows a case where a document 900 is placed on a placement table 400 as an example of a photographing object. In the example of FIG. 1A, an area A11 on the entire top surface of the mounting table 400 is an area where the projector unit 200 can irradiate light and an area where the scanner unit 300 can shoot. Of the area A11, the area where the document is placed is the area A12, and the other area is the area A13. In this example, the projector unit 200 irradiates the area A12 with illumination light and projects an image on the area A13. The area A12 corresponds to an example of a shooting target area. The imaging target area referred to here is an area where the imaging target object is imaged out of the areas that can be imaged by the scanner unit 300.

  However, the area of the entire top surface of the mounting table 400, the area where the projector unit 200 can irradiate light, and the area where the scanner unit 300 can shoot are not necessarily coincident. For example, only a part of the region where the projector unit 200 can irradiate light is set as a region where the object to be photographed can be placed, and the scanner unit 300 can photograph only the region where the object to be photographed can be placed. It may be configured.

  Further, it is not always necessary that the entire area where the object to be imaged is placed be the area to be imaged. For example, when the standard is such that a margin with a constant width is provided around the document, a portion other than the margin width portion may be a shooting target region in the region where the document is placed. In this case, the scanner unit 300 may shoot only the shooting target area. The control unit 100 may perform image processing (for example, character recognition or barcode reading) only on the imaging target region in the image data captured by the scanner unit 300.

The projector unit housing 210 accommodates each part of the projector unit 200. In addition, the projector unit housing 210 functions as a stand by fixing (holding) the projection unit 220 at a position away from the mounting table 400.
The projection unit 220 irradiates light toward the upper surface of the mounting table 400. In particular, the projection unit 220 projects an image on the upper surface of the mounting table 400. In addition, the projection unit 220 irradiates illumination light toward the upper surface of the mounting table 400. As described above, when the imaging target is placed on the mounting table 400, the projection unit 220 irradiates the imaging target area with illumination light and projects an image on an area other than the imaging target area.

Further, when the control unit 100 determines that the imaging target is placed on the mounting table 400, the projection unit 220 irradiates the entire projection possible range with light for detecting the imaging target area. The projectable range here is a range in which the projection unit 220 can irradiate light.
The image projected by the projection unit 220 is not limited to a specific image. For example, when the composite apparatus 1 is installed in a store, the projection unit 220 may project an advertisement image. Alternatively, the projection unit 220 may project an image explaining the operation of the multifunction apparatus 1.
Hereinafter, the image projected by the projection unit 220 is also referred to as a presentation image.

The scanner unit 300 is configured as a stand-type scanner, and shoots an object to be photographed placed on the placing table 400. With this shooting, the scanner unit 300 generates an image of the shooting target with image data.
The scanner unit housing 310 accommodates each part of the scanner unit 300.
The imaging unit 320 captures an upper surface of the mounting table 400 and generates an image. When the imaging target is placed on the top surface of the mounting table 400, the imaging unit 320 generates an image of the imaging target by imaging. The imaging unit 320 outputs the generated image to the control unit 100 as image data.

The elevating unit 330 holds the photographing unit 320 so as to be able to be raised and lowered. As the elevating unit 330 moves the imaging unit 320 up and down, the distance between the imaging unit 320 and the mounting table 400 changes. With this change in distance, the shooting range (view angle) of the shooting unit 320 on the top surface of the mounting table 400 changes.
The elevating unit 330 functions as a stand in that the imaging unit 320 is held at a position away from the mounting table 400.
However, the elevating unit 330 is not essential for the scanner unit 300. For example, the scanner unit housing 310 may fix (hold) the imaging unit 320 at a position away from the mounting table 400.

The mounting table 400 is a table provided for mounting an imaging object. The upper surface of the mounting table 400 corresponds to an example of a mounting location that is a location on which an object to be imaged is mounted. The top surface of the mounting table 400 is also used as a projection surface (screen) on which the projector unit 200 projects an image.
However, the mounting table may not be configured as a part of the composite apparatus 1. For example, a combination of the control unit 100, the projector unit 200, and the scanner unit 300 may be configured as a composite device that is used by being placed on a desk, and the desk on which the composite device is placed may be used as a mounting table.

FIG. 1B is a schematic block diagram illustrating a functional configuration of the composite apparatus 1. The composite apparatus 1 includes an operation input unit 130, a storage unit 180, and a control unit 190 in addition to the units illustrated in FIG. The control unit 190 includes a projection image generation unit 191, a placement presence / absence determination unit 192, an area detection unit 193, an elevation control unit 194, and a captured image processing unit 195.
The hardware configuring each of the operation input unit 130, the storage unit 180, and the control unit 190 is accommodated in the control unit 100, for example.

The operation input unit 130 includes an input device such as a push button and receives a user operation.
The storage unit 180 stores various data. The storage unit 180 is configured using a storage device included in the composite apparatus 1.
The control unit 190 performs various processes by controlling each unit of the multifunction apparatus 1. The control unit 190 is configured by a CPU (Central Processing Unit) included in the composite apparatus 1 reading out and executing a program from the storage unit 180.

The projection image generation unit 191 generates an image to be projected on the projection unit 220 as image data. The projection image generation unit 191 outputs the generated image data to the projection unit 220 and causes the projection unit 220 to project an image.
In addition, the projection image generation unit 191 instructs illumination light irradiation with image data output to the projection unit 220. For example, the projection image generation unit 191 sets the image data of the area where the projection unit 220 is desired to be irradiated with illumination light as white image data. The projection unit 220 irradiates white light to a region designated based on the image data.
However, the illumination light emitted by the projection unit 220 is not limited to white light. For example, the projection image generation unit 191 may set the image data of a region where the projection unit 220 is to be irradiated with illumination light as single-color image data other than white such as blue. The projection unit 220 irradiates the designated area with the designated monochromatic light on the designated area based on the image data.

  The illumination light emitted by the projection unit 220 is preferably uniform light, but is not limited thereto. The uniform light referred to here is light in which the illuminance is uniform at any irradiated position when the mounting table 400 is irradiated. When the illuminance is uneven due to the influence of the irradiation angle or the like from the projection unit 220 to the mounting table 400 and the processing of the control unit 100 is hindered, the control unit 100 corrects uneven brightness of the image due to the uneven illuminance. Image processing may be performed.

  In addition, the projection image generation unit 191 instructs to irradiate light for detecting the imaging target region with the image data output to the projection unit 220. For example, the projection image generation unit 191 instructs to irradiate the entire projection possible range of the projection unit 220 with light for detecting the imaging target region. Using this irradiation, the region detection unit 193 detects the imaging target region.

The mounting presence / absence determination unit 192 determines whether or not the imaging object is mounted on the mounting table 400. The mounting presence / absence determination unit 192 acquires the image data for projection generated by the projection image generation unit 191, thereby estimating an image captured by the imaging unit 320 when an object is not mounted on the mounting table 400. be able to. Therefore, the mounting presence / absence determination unit 192 compares the image captured by the imaging unit 320 with an image actually captured by the imaging unit 320 when no object is mounted on the mounting table 400, and places the mounting table 400. Whether or not the object to be photographed is placed on is determined.
For example, the imaging unit 320 performs imaging at regular intervals. The mounting presence / absence determination unit 192 determines whether or not the imaging target is placed on the mounting table 400 every time the imaging unit 320 performs imaging.

  A method in which the mounting presence / absence determination unit 192 compares an image captured by the imaging unit 320 when an object is not mounted on the mounting table 400 with an image actually captured by the imaging unit 320 is a specific method. It is not limited. For example, the mounting presence / absence determination unit 192 calculates the brightness of the entire image when the mounting presence / absence determination unit 192 does not place an object on the mounting table 400, and the entire image actually captured by the imaging unit 320. You may make it compare with the brightness of. Alternatively, the mounting presence / absence determination unit 192 calculates an area of a difference between an image captured by the imaging unit 320 and an image actually captured by the imaging unit 320 when an object is not mounted on the mounting table 400. You may make it compare with a predetermined threshold value.

  An image required when the mounting presence / absence determining unit 192 determines whether or not the imaging target is mounted on the mounting table 400 is an image when the imaging target unit is captured to obtain an image that can be processed. A rougher image may be used. For this reason, when the imaging unit 320 captures an imaging target part and acquires an image at a level that can be processed, the projection unit 220 emits illumination light, whereas the imaging unit 320 captures the object to be imaged. When performing imaging for determining whether or not there is mounting, the projection unit 220 does not perform irradiation light irradiation. Therefore, the mounting presence / absence determination unit 192 can determine whether or not the imaging object is mounted on the mounting table 400 without interrupting the projection of the image by the projection unit 220.

The area detection unit 193 detects an imaging target area in the imaging range of the imaging unit 320 when an imaging object is placed on the mounting table 400. Specifically, the area detection unit 193 detects the imaging target area when the mounting presence / absence determination unit 192 determines that the imaging target is placed on the mounting table 400.
The area detection unit 193 detects an imaging target area based on an image captured by the imaging unit 320 in a state where the projection unit 220 emits light for detecting the imaging target area.

  The projection unit 220 may irradiate monochromatic light such as white light as the light for detecting the imaging target region. In this case, the area detection unit 193 estimates an image captured by the imaging unit 320 when an object is not placed on the mounting table 400, and determines an area that is different from the image actually captured by the imaging unit 320 as an imaging target. You may make it detect as an area | region. Alternatively, when the photographing object is a document, the area detection unit 193 detects a boundary having different pixel values such as a color boundary or a brightness boundary from the image captured by the imaging unit 320, and a rectangular region that the boundary constitutes May be detected as an imaging target region.

  Or you may make it the projection part 220 irradiate the light for detecting solid shapes, such as grid | lattice-like light, as light for imaging | photography object area | region detection. In this case, the region detection unit 193 detects the photographing target region by detecting the photographing target in three dimensions, such as detecting a step generated by placing the document on the mounting table 400.

The method of determining whether or not the imaging target is placed on the mounting table 400 and the method of detecting the imaging target area by the multifunction apparatus 1 are not limited to the method using the image captured by the imaging unit 320. For example, when the photographing object is a document, the mounting table 400 may include a document detection sensor.
FIG. 2 is a diagram illustrating an arrangement example of the document detection sensors. In the example of FIG. 2, a glass plate is provided on the top surface of the mounting table 400, and a document detection sensor 410 is disposed under the glass plate.

FIG. 3 is a diagram illustrating an example of document detection by the document detection sensor 410.
In the example of FIG. 3, the document detection sensor 410 includes a light irradiation unit 411 that irradiates light in approximately one direction such as a weak laser beam, and a light receiving unit 412 that receives light. The light receiving unit 412 is installed at a position and an orientation for receiving the reflected light reflected by the document 900 when the document 900 is placed on the mounting table 400.

As shown in FIG. 3, the document detection sensor 410 is installed slightly inside the position where the corner of the document comes when the document is placed on the mounting table 400 (the side where the document is present). In the case where there are a plurality of document sizes or orientations that may be placed on the table 400, document detection sensors 410 are installed for each document size and each document orientation.
The area detection unit 193 determines that the document is placed on the mounting table 400 when any of the plurality of document detection sensors 410 receives reflected light, and detects the document receiving the reflected light. An imaging target area is detected based on the installation position of the sensor 410 for use.
In this case, since the projection unit 220 does not have to irradiate the light for detecting the imaging target region, the mounting presence / absence determining unit 192 for determining the irradiation timing is unnecessary.

The elevating control unit 194 controls the elevating unit 330 to elevate the imaging unit 320.
The photographed image processing unit 195 performs image processing on the image of the photographing object photographed by the photographing unit 320. Image processing performed by the captured image processing unit 195 is not limited to specific processing. For example, when the photographing object is a document with a document, the photographed image processing unit 195 may perform character recognition and barcode reading. Alternatively, when the composite apparatus 1 stores the image of the photographing object as an image, the photographed image processing unit 195 may adjust the brightness and contrast of the image.

Next, the operation of the composite apparatus 1 will be described with reference to FIGS.
FIG. 4 is a diagram illustrating an example of a processing procedure in which the multifunction apparatus 1 detects a document and performs image processing.
At the start of the process shown in FIG. 4, no object is placed on the mounting table 400. In this state, the projection unit 220 of the projector unit 200 projects the presentation image on the entire top surface of the mounting table 400 according to the control of the control unit 100 (sequence S111). As described above, the projection unit 220 projects the presentation image on the entire upper surface of the mounting table 400 in a state where the placement of the object on the mounting table 400 is not detected.

On the other hand, the imaging unit 320 of the scanner unit 300 images the mounting table 400 at a constant cycle (sequence S121). The control unit 100 acquires an image every time the image capturing unit 320 performs image capturing at a constant period (sequence S122), and based on the acquired image, the mounting presence / absence determining unit 192 determines whether the object to be imaged on the mounting table 400 is captured. The presence or absence of placement is determined (sequence S123). Hereinafter, a case where the photographing target is a document will be described as an example, but the photographing target is not limited to a document.
In a state where the placement of the document on the placement table 400 is not detected, the composite apparatus 1 repeats the processes of sequences S121 to S123 at a constant cycle.

On the other hand, when the placement determination unit 192 detects placement of the document on the placement table 400 (sequence S124), the control unit 100 requests the projector unit 200 to project white light (sequence S125). . Specifically, the projection image generation unit 191 generates image data in which the entire image is white, and outputs the image data to the projector unit 200.
In the projector unit 200, the projection unit 220 projects (irradiates) white light over the entire range of possible projection of white light based on the image data from the projection image generation unit 191 (sequence S131).

In the scanner unit 300, the photographing unit 320 performs photographing in a state where the projection unit 220 performs projection in the sequence S131 (sequence S141). The imaging unit 320 outputs image data obtained by the obtained imaging to the control unit 100.
When the control unit 100 acquires image data (sequence S142), the area detection unit 193 detects a document area (an area in which the document is shown) in the image indicated by the image data as a shooting target area (sequence S143). Control unit 100 notifies projector unit 200 of information indicating the detected area (sequence S144). Specifically, the projection image generation unit 191 generates white image (white-painted image) as the shooting target region detected by the region detection unit 193, and generates image data including the presentation image in the other region. Output to.

In the projector unit 200, the projection unit 220 projects (irradiates) white illumination light onto the document area based on the image data from the projection image generation unit 191, and projects a presentation image onto an area other than the document ( Sequence S151).
In the scanner unit 300, the imaging unit 320 captures an image in a state where the projection unit 220 irradiates the original with illumination light in sequence S151 (sequence S161). In particular, the imaging unit 320 captures an image of a document that is irradiated with illumination light. For areas other than the original, a clear image may not be obtained.

In the control unit 100, the photographed image processing unit 195 acquires an image of the document photographed by the photographing unit 320, and performs processing such as character recognition or barcode reading (sequence S162).
After the sequence S162, the process of FIG. After that, for example, the composite apparatus 1 repeats the processes of the sequences S121 to S123 at a constant cycle, and maintains the projection of the image in the sequence S151 until it is detected that the document is removed from the placing table 400. When it is detected that the document is removed from the placing table 400, the multifunction apparatus 1 performs the same process as described with reference to FIG.

FIG. 5 is a flowchart illustrating a first example of a processing procedure in which the multifunction apparatus 1 acquires an image of a document. FIG. 5 shows an example of a processing procedure when the elevating unit 330 fixes the height of the photographing unit 320. For example, the captured image processing unit 195 performs the processing of FIG. 5 in sequence S162 using the image captured by the capturing unit 320 in sequence S161 of FIG.
In the process of FIG. 5, the captured image processing unit 195 acquires an image obtained by capturing the document by the capturing unit 320 (step S <b> 201). In the example of FIG. 5, since the elevating unit 330 fixes the height of the temple, the image captured by the imaging unit 320 includes a document area and other areas.

Therefore, the captured image processing unit 195 selects a necessary portion (portion where the document is shown) by selecting a predetermined fixed visual field range from the image obtained in step S201, and the selected portion. Is cut out (step S202). Alternatively, the photographed image processing unit 195 may cut out a necessary part (for example, a part excluding the margin) from the document.
Then, the captured image processing unit 195 enlarges the cut-out portion image to a predetermined size (step S203). When enlarging an image, the captured image processing unit 195 performs pixel interpolation as necessary.
As a result, the photographed image processing unit 195 obtains an image of the document and ends the process of FIG.

FIG. 6 is a flowchart illustrating a second example of a processing procedure in which the multifunction apparatus 1 acquires a document image. In FIG. 6, the example of the process sequence in case the raising / lowering part 330 raises / lowers the imaging | photography part 320 is shown. For example, the multifunction apparatus 1 performs the process of FIG. 6 in the sequences S141 to S162 of FIG.
In the process of FIG. 6, the area detection unit 193 acquires an image captured by the imaging unit 320 and detects a document area (step S <b> 301). Here, since the image capturing unit 320 performs image capturing before the elevating unit 330 raises and lowers the image capturing unit 320, the image captured by the image capturing unit 320 includes a document area and other areas. . The area detection unit 193 detects an area of a document in the image captured by the imaging unit 320. In the example of FIG. 4, the process of sequence S142 corresponds to the example of the process of step S301 of FIG.

  Next, the elevation controller 194 calculates the elevation amount of the photographing unit 320 based on the detection result in step S301 (step S302). For example, the storage unit 180 stores in advance a correspondence table that associates the size of the document area with the amount of elevation. Then, the elevation control unit 194 reads from the storage unit 180 the elevation amount associated with the size of the document area detected by the area detection unit 193 in step S301.

The elevating unit 330 moves the imaging unit 320 up and down according to the elevating amount determined by the elevating control unit 194 (step S303).
When the elevating unit 330 completes the raising / lowering of the imaging unit 320, the imaging unit 320 captures an image in the range of the document and generates image data, and the captured image processing unit 195 acquires the image data (step S304). In the case of the example of FIG. 4, the processes of sequences S161 to S162 correspond to the example of the process of step S304 of FIG. Here, the elevation unit 330 moves the imaging unit 320 up and down, so that the angle of view of the imaging unit 320 is within the range of the document. Thereby, the photographing unit 320 photographs only the range of the document. Therefore, unlike the case of FIG. 6, the captured image processing unit 195 does not need to cut out a part from the image captured by the capturing unit 320.
After step S304, the process of FIG. 6 ends.

As described above, the projecting unit 220 projects an image on a placement place (an upper surface of the placement table 400) that is a place on which the object to be photographed is placed. The imaging unit 320 captures the placement location and generates an image. The area detection unit 193 detects an imaging target area in the imaging range of the imaging unit 320 when an imaging object is placed on the placement location. Then, the projection unit 220 irradiates the photographing target area with illumination light for photographing.
The projection unit 220 irradiates the imaging target region with illumination light for imaging, so that the imaging unit 320 can capture a bright image suitable for image processing. In this respect, according to the composite apparatus 1, it is possible to improve the conditions for photographing the photographing object.

In addition, the projection unit 220 projects an image onto an area other than the imaging target area in the placement location.
As a result, the multifunction apparatus 1 can photograph the object to be photographed while continuing to project the image.

Further, the placement presence / absence determination unit 192 determines whether or not the photographing object is placed on the placement location. The area detection unit 193 detects an imaging target area when the placement presence / absence determination unit 192 determines that the imaging target is placed on the placement location.
The determination of the presence / absence of placement of the photographing object on the placement place performed by the placement presence / absence determination unit 192 can be performed with a lighter load than the detection of the photographing target region performed by the region detection unit 193. The composite apparatus 1 performs processing in two stages, that is, whether or not the object to be photographed is placed on the placement place and the detection of the object region to be photographed, thereby reducing the frequency of detecting a relatively heavy object region to be photographed. In this respect, the load on the composite apparatus 1 can be light.

Further, when the mounting presence / absence determining unit 192 determines that the imaging target is placed on the mounting location, the projecting unit 220 irradiates the entire projection possible range with light for detecting the imaging target region. The area detection unit 193 detects an imaging target area based on an image captured by the imaging unit 320 in a state where the projection unit 220 emits light for detecting the imaging target area.
Thereby, the area detection unit 193 can detect the shooting target area using a bright image. In this regard, according to the composite apparatus 1, the area detection unit 193 can detect the imaging target area with high accuracy.

Next, the minimum configuration of the present invention will be described with reference to FIGS.
FIG. 7 is a diagram showing an example of the minimum configuration of the reading apparatus according to the present invention. The reading apparatus 10 illustrated in FIG. 7 includes a projection unit 11, an imaging unit 12, and an area detection unit 13.
With such a configuration, the projection unit 11 projects an image on a placement place that is a place on which the object to be photographed is placed. The imaging unit 12 captures the placement location and generates an image. The area detection unit 13 detects an imaging target area in the imaging range of the imaging unit 12 when an imaging object is placed on the placement location. Then, the projection unit 11 irradiates the photographing target area with illumination light for photographing.
When the projection unit 11 irradiates the imaging target region with illumination light for imaging, the imaging unit 12 can capture a bright image suitable for image processing. In this regard, according to the reading device 10, it is possible to improve the conditions for photographing the photographing object.

FIG. 8 is a diagram showing an example of the minimum configuration of the image display apparatus according to the present invention. An image display device 20 illustrated in FIG. 8 includes a projection unit 21, a photographing unit 22, and a region detection unit 23.
With such a configuration, the projection unit 21 projects an image on a placement place that is a place on which the photographing object is placed. The imaging unit 22 captures the placement location and generates an image. The area detection unit 23 detects an imaging target area in the imaging range of the imaging unit 22 when an imaging object is placed on the placement location. Then, the projection unit 21 irradiates the imaging target area with illumination light for imaging.
The projection unit 21 irradiates the photographing target area with illumination light for photographing, so that the photographing unit 22 can photograph a bright image suitable for image processing. In this respect, according to the image display device 20, it is possible to improve the conditions for photographing the photographing object.

It should be noted that a program for realizing all or part of the functions of the control unit 190 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. You may perform the process of. Here, the “computer system” includes an OS and hardware such as peripheral devices.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes designs and the like that do not depart from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Compound apparatus 100 Control unit 130 Operation input part 180 Storage part 190 Control part 191 Projection image generation part 192 Mounting presence determination part 193 Area | region detection part 194 Elevation control part 195 Captured image processing part 200 Projector unit 210 Projector unit housing | casing 220 Projection Unit 300 scanner unit 310 scanner unit housing 320 imaging unit 330 elevating unit 400 mounting table

Claims (7)

A projection unit for projecting an image onto a placement place that is a place to place a photographing object;
A photographing unit for photographing the place described above and generating an image;
An area detection unit that detects an imaging target area in an imaging range of the imaging unit when an imaging object is placed at the placement location;
With
The projection unit irradiates the imaging target region with illumination light for imaging. A projection unit for projecting an image onto a placement place that is a place to place a photographing object;
A photographing unit for photographing the place described above and generating an image;
An area detection unit that detects an imaging target area in an imaging range of the imaging unit when an imaging object is placed at the placement location;
With
The projection unit is an image display device that irradiates the photographing target region with light for photographing. The projection unit projects the image onto an area other than the imaging target area in the installation place.
The image display device according to claim 2. A mounting presence / absence determining unit that determines whether or not the object to be photographed is placed at the placement location;
The area detection unit detects the imaging target area when the placement determination unit determines that the imaging target is placed on the placement place,
The image display device according to claim 2. The projection unit irradiates the entire projection possible range with light for imaging target area detection when the above-described setting presence / absence determination unit determines that the imaging target is placed on the installation location,
The area detection unit detects the imaging target area based on an image captured by the imaging unit in a state where the projection unit irradiates light for detecting the imaging target area.
The image display device according to claim 4. An apparatus comprising: a projection unit that projects an image on a placement place that is a place on which a subject to be photographed is placed; and a photographing unit that shoots the placement place and generates an image.
When a shooting object is placed at the above-mentioned installation location, a shooting target area in the shooting range of the shooting unit is detected,
Irradiating the imaging target area with illumination light for imaging,
A processing method. A computer that controls an apparatus including: a projection unit that projects an image on a placement location that is a location on which a subject to be photographed is placed; and a photographing unit that captures the placement location and generates an image.
When a photographing object is placed at the above-described placement location, the photographing target area in the photographing range of the photographing unit is detected,
Controlling the projection unit to irradiate the illuminating light for photographing to the photographing target region,
Program for.

Images