CN107451570A - A kind of method and device for starting palm pattern recognition device - Google Patents
A kind of method and device for starting palm pattern recognition device Download PDFInfo
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- CN107451570A CN107451570A CN201710662540.XA CN201710662540A CN107451570A CN 107451570 A CN107451570 A CN 107451570A CN 201710662540 A CN201710662540 A CN 201710662540A CN 107451570 A CN107451570 A CN 107451570A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
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Abstract
The invention discloses a kind of method and device for starting palm pattern recognition device, including：When the ambient light intensity detected exceedes preset intensity, image in BR image acquisition region is simultaneously designated as the first image, then described first image is compared with the second preset image, determine whether that object enters image acquisition region, wherein second image, which is the ambient light intensity, exceedes preset intensity and the image for not having object to be shot when entering image acquisition region；If described first image and the similarity of second image are less than preset first index, primarily determine that object enters image acquisition region, then started palm pattern recognition device.It is difficult to determine whether that object enters image acquisition region so as to cause the error starting of palm pattern recognition device, the technical problem for starting not in time or not starting by detecting light under the stronger environment of light to solve existing palm pattern recognition device.
Description
Technical field
The present invention relates to technical field of biometric identification, more particularly to a kind of method and dress for starting palm pattern recognition device
Put.
Background technology
Biological identification technology is exactly, contour by computer and optics, acoustics, biology sensor and biostatistics principle
Technological meanses are intimately associated, and using the intrinsic physiological property of human body, (such as fingerprint, face picture, iris) and behavioural characteristic are (such as pen
Mark, sound, gait etc.) carry out the identification of personal identification.In technical field of biometric identification, the application of hand identification is increasingly
Extensively.Under normal circumstances, hand identification is to carry out light filling using near-infrared LED lamp, and passes through imaging sensor (CMOS
Sensor the image of palm) is obtained, is then transmit in the processor of rear end and is handled and be identified comparison.
It is to first pass through detection light to have detected whether that palm enters image acquisition areas in existing palm pattern recognition device
Domain, if having detected that palm enters image acquisition region, then start image acquisition device and carry out palm image acquisition, Ran Houjin
Row identification.However, because the intensity of detection light is not high, when palm pattern recognition device is operated in the stronger environment of light
Under, such as the outdoor of sunlight strong, it is difficult to determine whether that object enters image acquisition region by detecting light, so as to cause
The error starting of palm pattern recognition device, the technical problem for starting not in time or not starting so that palm pattern recognition device
Cisco unity malfunction.
The content of the invention
The invention provides a kind of method and device for starting palm pattern recognition device, solves existing palm image and knows
Other device is difficult to determine whether that object enters image acquisition region so as to make by detecting light under the stronger environment of light
Error starting into palm pattern recognition device, the technical problem for starting not in time or not starting.
The invention provides a kind of method for starting palm pattern recognition device, including：
When the ambient light intensity detected exceedes preset intensity, image in BR image acquisition region is simultaneously designated as
First image, then described first image is compared with the second preset image, it is determined whether there is object to be adopted into image
Collect region, exceed preset intensity wherein second image is the ambient light intensity and enter image acquisition region without object
When the image that shoots；
If described first image and the similarity of second image are less than preset first index, object has been primarily determined that
Into image acquisition region, then start palm pattern recognition device.
Preferably,
After it is determined that there is object to enter image acquisition region, before palm pattern recognition device is started, in addition to：
An at least image for shooting image pickup area and compared one by one with described first image again, if again
The similarity of every image and described first image is above preset second index at least image photographed, then finally
It is determined that there is object to enter image acquisition region.
Preferably,
The method for starting palm pattern recognition device also includes：
When the ambient light intensity detected is no more than preset intensity, by detecting whether optical detection has object to enter image
Pickup area, then start the palm pattern recognition device in the case where being detected with object into image acquisition region.
Preferably,
When the ambient light intensity detected exceedes preset intensity, image and note in BR image acquisition region
Before the first image, in addition to：
Shoot image when no object enters image acquisition region and save as second image.
Preferably,
The method for starting palm pattern recognition device also includes：
Detect the intensity of ambient light.
The invention provides a kind of device for starting palm pattern recognition device, including：
First shooting comparing module, for when the ambient light intensity detected exceedes preset intensity, BR image
Image in pickup area is simultaneously designated as the first image, then described first image is compared with the second preset image, really
It is fixed whether to there is object to enter image acquisition region, exceed preset intensity wherein second image is the ambient light intensity and do not have
There is the image that object is shot when entering image acquisition region；
Starting module, for when described first image and the similarity of second image are less than preset first index,
Primarily determine that object enters image acquisition region, then started palm pattern recognition device.
Preferably,
The device for starting palm pattern recognition device also includes：
Second shooting comparing module, for shooting image pickup area again an at least image and with first figure
As being compared one by one, when the similarity of every image and described first image is high at least image photographed again
It is final to determine there is object to enter image acquisition region when preset second index.
Preferably,
The device for starting palm pattern recognition device also includes：
Detecting module, for when the ambient light intensity detected is no more than preset intensity, by whether detecting optical detection
There is object to enter image acquisition region；
Starting module, it is additionally operable to start the palm image in the case where being detected with object into image acquisition region
Identification device.
Preferably,
The device for starting palm pattern recognition device also includes：
Memory module is shot, for shooting image when no object enters image acquisition region and saving as described second
Image.
Preferably,
The device for starting palm pattern recognition device also includes：
Luminous intensity detection module, for detecting the intensity of ambient light.
As can be seen from the above technical solutions, the present invention has advantages below：
When the ambient light intensity detected exceedes preset intensity, at this moment palm pattern recognition device is difficult by detecting light
Determine whether that object enters image acquisition region, the present invention is by the image in BR image acquisition region and is designated as the
One image, then the first image is compared with the second preset image, it is determined whether there is object to enter image acquisition region,
Because the second image, which is ambient light intensity, exceedes preset intensity and the image for not having object to be shot when entering image acquisition region, institute
If what it is with the first image taking is the image that has object to enter image acquisition region, then be easy to compare out the first image and
The similarity of second image is very low and is less than preset first index, can now primarily determine that object enters image acquisition areas
Domain, can be to start palm pattern recognition device, it is achieved thereby that can also accurately start the knowledge of palm image under strong light environment
Other device, it is difficult to determine whether thing by detecting light under the stronger environment of light to solve existing palm pattern recognition device
Body enters image acquisition region so as to cause the error starting of palm pattern recognition device, the skill for starting not in time or not starting
Art problem.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of stream of the first embodiment of method for starting palm pattern recognition device provided in an embodiment of the present invention
Journey schematic diagram；
Fig. 2 is a kind of stream of the second embodiment of method for starting palm pattern recognition device provided in an embodiment of the present invention
Journey schematic diagram；
Fig. 3 is a kind of stream of the first embodiment of device for starting palm pattern recognition device provided in an embodiment of the present invention
Journey schematic diagram；
Fig. 4 is a kind of stream of the first embodiment of device for starting palm pattern recognition device provided in an embodiment of the present invention
Journey schematic diagram.
Embodiment
The embodiments of the invention provide a kind of method and device for starting palm pattern recognition device, solves existing palm
Pattern recognition device under the stronger environment of light be difficult by detect light determine whether object enter image acquisition region from
And the technical problem that the error starting of palm pattern recognition device can be caused, start not in time or do not start.
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Referring to Fig. 1, the first of a kind of method for starting palm pattern recognition device provided in an embodiment of the present invention implements
The schematic flow sheet of example；
A kind of method for starting palm pattern recognition device provided in an embodiment of the present invention, including：
S101, when the ambient light intensity detected exceedes preset intensity, the image in BR image acquisition region
And the first image is designated as, then the first image is compared with the second preset image, it is determined whether there is object to enter image
Pickup area, exceed preset intensity wherein the second image is ambient light intensity and there is no object to be shot when entering image acquisition region
Image.
During BR, the time interval between shooting twice can be configured according to actual conditions, such as can be set
It is set to 5 seconds, it can also be provided that 10 seconds, repeat no more below.
Preset intensity can be measured by experiment, generally, when the intensity of ambient light exceedes some strength, hand
It is just difficult to determine whether that object enters image acquisition region by detecting light to slap pattern recognition device；But preset intensity is not
Uniquely, can also be influenceed by other environment, such as suspended particulate substance etc. in air, so preset intensity depends on palm figure
The current environment to be worked as identification device.
Second image is to exceed preset intensity in ambient light intensity and confirm that no object enters the feelings of image acquisition region
Under condition, the image of the image acquisition region of shooting, as control.
If the first image taking is the image for having object to enter image acquisition region, then is easy to compare out first
The similarity of image and the second image is very low, so technical difficulty is not present.
S102, if the similarity of the first image and the second image is less than preset first index, primarily determine that object enters
Enter image acquisition region, then start palm pattern recognition device.
Preset first index is determined according to environment, can set it is high a bit, for example, 90%, can also set
It is lower, such as 60%.
After starting palm pattern recognition device, hand identification device begins to gather the image of object and is identified,
Identification work afterwards is prior art, and here is omitted.
Referring to Fig. 2, the second of a kind of method for starting palm pattern recognition device provided in an embodiment of the present invention implements
The schematic flow sheet of example；
A kind of method for starting palm pattern recognition device provided in an embodiment of the present invention, including：
S201, detect the intensity of ambient light.
S202, when the ambient light intensity detected exceedes preset intensity, shoot no object and enter image acquisition region
When image and save as second image, the image in BR image acquisition region is simultaneously designated as the first image, then
First image is compared with the second preset image, it is determined whether there is object to enter image acquisition region.
S203, if the similarity of the first image and the second image is less than preset first index, primarily determine that object enters
Enter image acquisition region, an at least image for shooting image pickup area and compared one by one with the first image again, if
The similarity of every image and the first image is above preset second index at least image photographed again, then finally
It is determined that there is object to enter image acquisition region, then start palm pattern recognition device.
An at least image for shooting image pickup area can be understood as continuously clapping multiple image acquisition regions again
Image, so as to having again determined whether that object enters image acquisition region, generally, shooting image pickup area again
One image is just enough to determine whether that object enters image acquisition region.
S204, when the ambient light intensity detected is no more than preset intensity, by detecting whether optical detection has object to enter
Enter image acquisition region, then start palm image recognition dress in the case where being detected with object into image acquisition region
Put.
When the ambient light intensity detected is no more than preset intensity, object can be accurately detected by detecting light and entered
Enter image acquisition region, so selecting to be detected using detection light here.
It is time-consuming longer to determine whether that object enters image acquisition region by shooting image, it may be necessary to 1 second even 2
Second, and whether there is object to be much smaller than 1 second into image acquisition region is time-consuming by detecting optical detection, so when the environment detected
When luminous intensity is no more than preset intensity, selection detection optical detection is more quick.
Referring to Fig. 3, the first of a kind of device for starting palm pattern recognition device provided in an embodiment of the present invention implements
The schematic flow sheet of example；
The embodiments of the invention provide a kind of device for starting palm pattern recognition device, including：
First shooting comparing module 301, for when the ambient light intensity detected exceedes preset intensity, BR figure
As the image in pickup area and the first image is designated as, then the first image is compared with the second preset image, it is determined that
Whether there is object to enter image acquisition region, exceed preset intensity wherein the second image is ambient light intensity and enter without object
The image shot during image acquisition region；
Starting module 302, for when the similarity of the first image and the second image is less than preset first index, it is preliminary really
Surely there is object to enter image acquisition region, then start palm pattern recognition device.
Referring to Fig. 4, the second of a kind of device for starting palm pattern recognition device provided in an embodiment of the present invention implements
The schematic flow sheet of example；
The embodiments of the invention provide a kind of device for starting palm pattern recognition device, including：
First shooting comparing module 401, for when the ambient light intensity detected exceedes preset intensity, BR figure
As the image in pickup area and the first image is designated as, then the first image is compared with the second preset image, it is determined that
Whether there is object to enter image acquisition region, exceed preset intensity wherein the second image is ambient light intensity and enter without object
The image shot during image acquisition region；
Second shooting comparing module 403, for shooting image pickup area again an at least image and with described the
One image is compared one by one, when the similarity of every image and described first image at least image photographed again
It is final to determine there is object to enter image acquisition region when being above preset second index.
Detecting module 404, for when the ambient light intensity detected is no more than preset intensity, being by detecting optical detection
It is no to there is object to enter image acquisition region；
Starting module 402, it is additionally operable to start palm image in the case where being detected with object into image acquisition region
Identification device.
Memory module 405 is shot, for shooting image when no object enters image acquisition region and saving as second
Image.
Luminous intensity detection module 406, for detecting the intensity of ambient light.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
- A kind of 1. method for starting palm pattern recognition device, it is characterised in that including：When the ambient light intensity detected exceedes preset intensity, image in BR image acquisition region is simultaneously designated as first Image, then described first image is compared with the second preset image, it is determined whether there is object to enter image acquisition areas Domain, exceed preset intensity wherein second image is the ambient light intensity and there is no object to be clapped when entering image acquisition region The image taken the photograph；If described first image and the similarity of second image are less than preset first index, object entrance has been primarily determined that Image acquisition region, then start palm pattern recognition device.
- 2. the method according to claim 1 for starting palm pattern recognition device, it is characterised in that it is determined that there is object to enter After entering image acquisition region, before palm pattern recognition device is started, in addition to：An at least image for shooting image pickup area and compared one by one with described first image again, if shooting again To an at least image in the similarity of every image and described first image be above preset second index, then it is final to determine There is object to enter image acquisition region.
- 3. the method according to claim 1 for starting palm pattern recognition device, it is characterised in that also include：When the ambient light intensity detected is no more than preset intensity, by detecting whether optical detection has object to enter IMAQ Region, then start the palm pattern recognition device in the case where being detected with object into image acquisition region.
- 4. the method according to claim 1 for starting palm pattern recognition device, it is characterised in that when the environment detected When luminous intensity exceedes preset intensity, image in BR image acquisition region is simultaneously designated as before the first image, in addition to：Shoot image when no object enters image acquisition region and save as second image.
- 5. the method according to claim 1 for starting palm pattern recognition device, it is characterised in that also include：Detect the intensity of ambient light.
- A kind of 6. device for starting palm pattern recognition device, it is characterised in that including：First shooting comparing module, for when the ambient light intensity detected exceedes preset intensity, BR IMAQ Image in region is simultaneously designated as the first image, then described first image is compared with the second preset image, it is determined that being It is no to there is object to enter image acquisition region, wherein second image, which is the ambient light intensity, exceedes preset intensity and no thing Body enters the image shot during image acquisition region；Starting module, for when described first image and the similarity of second image are less than preset first index, tentatively It is determined that there is object to enter image acquisition region, then start palm pattern recognition device.
- 7. the device according to claim 6 for starting palm pattern recognition device, it is characterised in that also include：Second shooting comparing module, for shooting image pickup area again an at least image and enter with described first image Row compare one by one, when at least image photographed again the similarity of every image and described first image be above it is pre- It is final to determine there is object to enter image acquisition region when putting the second index.
- 8. the device according to claim 6 for starting palm pattern recognition device, it is characterised in that also include：Detecting module, for when the ambient light intensity detected is no more than preset intensity, by detecting whether optical detection has thing Body enters image acquisition region；Starting module, it is additionally operable to start the palm image recognition in the case where being detected with object into image acquisition region Device.
- 9. the device according to claim 6 for starting palm pattern recognition device, it is characterised in that also include：Memory module is shot, for shooting image when no object enters image acquisition region and saving as second figure Picture.
- 10. the device according to claim 6 for starting palm pattern recognition device, it is characterised in that also include：Luminous intensity detection module, for detecting the intensity of ambient light.
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| CN201710662540.XA CN107451570A (en) | 2017-08-04 | 2017-08-04 | A kind of method and device for starting palm pattern recognition device |
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Cited By (1)
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Application publication date: 20171208 |