CN108259892A - Detection method, system and the device of imaging sensor - Google Patents
Detection method, system and the device of imaging sensor Download PDFInfo
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- CN108259892A CN108259892A CN201810233965.3A CN201810233965A CN108259892A CN 108259892 A CN108259892 A CN 108259892A CN 201810233965 A CN201810233965 A CN 201810233965A CN 108259892 A CN108259892 A CN 108259892A
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- output valve
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
Abstract
The present invention is suitable for image sensor technologies field, provides a kind of detection method of imaging sensor, system and device, wherein method includes：Obtain the background data of the effective pixel points of imaging sensor acquisition；Count maximum pixel output valve, the minimum pixel output valve in the background data；The pixel that the background data is calculated according to the maximum pixel output valve and the minimum pixel output valve exports uniform value；Judge that the maximum pixel output valve, the minimum pixel output valve and the pixel export uniform value whether in the range of corresponding a reference value；If so, described image sensor is qualified products；If it is not, then described image sensor is substandard product.The present invention can measure whether imaging sensor is qualified, reduce the fraction defective for the imaging sensor that supplier provides in the production process of currency examination device.
Description
Technical field
The invention belongs to image sensor technologies field more particularly to a kind of detection method of imaging sensor, system and
Device.
Background technology
Imaging sensor detects as picture signal, analyzes important sensor, and whether its own state is good, to acquisition
The reliability and validity of data play the role of vital.Particularly in currency examination device, imaging sensor is mainly used for
Banknote image is acquired during money-checking, if the image data of imaging sensor acquisition has deviation, can be brought to user greatly
Monetary losses, therefore, currency examination device is before coming into operation, it is necessary to which the imaging sensor that it is used is detected.
Invention content
It in view of this, can be in currency examination device the present invention provides a kind of detection method of imaging sensor, system and device
Production process in, measure imaging sensor it is whether qualified, reduce supplier provide imaging sensor fraction defective.
The first aspect of the present invention provides a kind of detection method of imaging sensor, including：
Obtain the background data of the effective pixel points of imaging sensor acquisition；
Count maximum pixel output valve, the minimum pixel output valve in the background data；
The pixel of the background data is calculated according to the maximum pixel output valve and the minimum pixel output valve
Export uniform value；
Judge whether the maximum pixel output valve, the minimum pixel output valve and the pixel export uniform value equal
In the range of corresponding a reference value；
If so, described image sensor is qualified products；
If it is not, then described image sensor is substandard product.
Based on the above technical solution, it is described according to the maximum pixel output valve and the minimum pixel output valve
The uniform value of pixel output that the background data is calculated specifically includes：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform
Value；Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminIt is exported for minimum pixel
Value.
Based on the above technical solution, the background data packet of the effective pixel points for obtaining imaging sensor acquisition
It includes：
Obtain the dark background data of the effective pixel points of described image sensor acquisition；And
Obtain the bright background data of the effective pixel points of described image sensor acquisition；
Wherein, imaging sensor is collected when the dark background data refer to not place test sample on measurement jig has
Imitate the image data of pixel；Imaging sensor collects when stated clearly background data refers to place test sample on measurement jig
Effective pixel points image data.
Based on the above technical solution, the test sample is white sample and/or transparent sample.
The second aspect of the present invention provides a kind of detecting system of imaging sensor, including：
Acquiring unit, for obtaining the background data of the effective pixel points of imaging sensor acquisition；
Statistic unit, for counting the maximum pixel output valve in the background data, minimum pixel output valve；
Computing unit, for the back of the body to be calculated according to the maximum pixel output valve and the minimum pixel output valve
The pixel of scape data exports uniform value；
Judging unit, for judging that the maximum pixel output valve, the minimum pixel output valve and the pixel are defeated
Go out uniform value whether in the range of corresponding a reference value；
Output unit, for if so, described image sensor is qualified products；If it is not, then described image sensor is
Substandard product.
Based on the above technical solution, the computing unit is specifically used for：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform
Value；Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminIt is exported for minimum pixel
Value.
Based on the above technical solution, the acquiring unit includes：
Dark background data capture unit, for obtaining the dark background number of the effective pixel points of described image sensor acquisition
According to；And
Bright background data acquiring unit, for obtaining the bright background number of the effective pixel points of described image sensor acquisition
According to；
Wherein, imaging sensor is collected when the dark background data refer to not place test sample on measurement jig has
Imitate the image data of pixel；Imaging sensor collects when stated clearly background data refers to place test sample on measurement jig
Effective pixel points image data.
Based on the above technical solution, the test sample is white sample and/or transparent sample.
Third aspect present invention provides a kind of detection device of imaging sensor, including memory, processor and deposits
The computer program that can be run in the memory and on the processor is stored up, the processor performs the computer journey
It is realized during sequence such as the step of any one of above-mentioned first aspect the method.
The fourth aspect of the present invention provides a kind of computer readable storage medium, and the computer readable storage medium is deposited
Computer program is contained, wherein, it is realized as described in above-mentioned any one of first aspect when the computer program is executed by processor
The step of method.
The beneficial effects of the invention are as follows：
The background data for the effective pixel points that the present invention is acquired by obtaining imaging sensor；It counts in the background data
Maximum pixel output valve, minimum pixel output valve；According to the maximum pixel output valve and the minimum pixel output valve meter
It calculates and obtains the uniform value of pixel output of the background data；Judge the maximum pixel output valve, the minimum pixel output valve
And whether the uniform value of pixel output is in the range of corresponding a reference value；If so, described image sensor is qualification
Product；If it is not, then described image sensor is substandard product, so as in the production process of currency examination device, measure image
Whether sensor is qualified, reduces the fraction defective for the imaging sensor that supplier provides.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the realization flow diagram of the detection method for the imaging sensor that a preferred embodiment of the present invention provides；
Fig. 2 is the realization flow diagram of the detection method of imaging sensor that another preferred embodiment of the present invention provides；
Fig. 3 is the structure diagram of the detecting system for the imaging sensor that a preferred embodiment of the present invention provides；
Fig. 4 is the structure diagram of the detection device for the imaging sensor that a preferred embodiment of the present invention provides.
Specific embodiment
In being described below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specifically
The present invention can also be realized in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Fig. 1 shows the realization flow signal of the detection method for the imaging sensor that a preferred embodiment of the present invention provides
Figure.Details are as follows for the realization flow of this method：
Step S101 obtains the background data of the effective pixel points of imaging sensor acquisition.
In the present embodiment, when using imaging sensor acquisition image data, mainly having using imaging sensor
Pixel acquisition image data is imitated, and not necessarily utilizes the pixel of imaging sensor whole, therefore when obtaining background data,
Only need the background data of the effective pixel points of acquisition imaging sensor.
In the present embodiment, the background data of the effective pixel points for obtaining imaging sensor acquisition includes：Obtain figure
As the background data of sensor collected effective pixel points in preset time；Alternatively, imaging sensor is obtained according to preset
The background data of the collected effective pixel points of number.Obtain the effective pixel points that imaging sensor acquires in preset time
Background data and acquisition imaging sensor can obtain more according to the background data of the collected effective pixel points of predetermined times
The background data of the effective pixel points of secondary imaging sensor, the background data got is more, the image sensing that subsequent detection goes out
Whether qualified device credible result degree be higher.
Further, in the present embodiment, the background data packet of the effective pixel points for obtaining imaging sensor acquisition
It includes：
Obtain the dark background data of the effective pixel points of described image sensor acquisition；And
Obtain the bright background data of the effective pixel points of described image sensor acquisition.
Wherein, imaging sensor is collected when the dark background data refer to not place test sample on measurement jig has
Imitate the image data of pixel；Imaging sensor collects when stated clearly background data refers to place test sample on measurement jig
Effective pixel points image data.Preferably, in the present embodiment, the test sample is white sample and/or transparent sample
This.Wherein, the white sample includes but not limited to blank sheet of paper；The transparent sample includes but not limited to cellophane paper.
Step S102 counts maximum pixel output valve, minimum pixel output valve in the background data.
In the present embodiment, the background data includes the dark background data and states background data, the statistics clearly
Maximum pixel output valve, minimum pixel output valve in the background data specifically include：
Count the dark output valve of maximum pixel, the dark output valve of minimum pixel of the dark background data；And
Count the bright output valve of maximum pixel, the bright output valve of minimum pixel of stated clearly background data.
The background number is calculated according to the maximum pixel output valve and the minimum pixel output valve in step S103
According to pixel export uniform value.
In the present embodiment, step S103 is specifically included：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform
Value；
Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminFor minimum image
Plain output valve.
Further, the maximum pixel output valve be the dark output valve of maximum pixel or the bright output valve of maximum pixel, it is described
Minimum pixel output valve is the dark output valve of minimum pixel or the bright output valve of minimum pixel, and the uniform value of pixel output is dark for pixel
Export uniform value or the bright uniform value of output of pixel.It is correspondingly, described according to the maximum pixel output valve and the minimum pixel
The uniform value of pixel output that the background data is calculated in output valve specifically includes：
The background data is calculated according to the dark output valve of the maximum pixel and the dark output valve of the minimum pixel
Pixel secretly exports uniform value；And
The background data is calculated according to the bright output valve of the maximum pixel and the bright output valve of the minimum pixel
The bright uniform value of output of pixel.
Step S104 judges that the maximum pixel output valve, the minimum pixel output valve and pixel output are equal
Whether one value is in the range of corresponding a reference value；If so, described image sensor is qualified products；If it is not, the then figure
As sensor is substandard product.
In the present embodiment, the maximum pixel output valve corresponding to qualified imaging sensor, minimum pixel output valve with
And the uniform value of pixel can be corresponded in the range of respectively corresponding a reference value, corresponding to the imaging sensor of different model most
The reference range of big pixel output, minimum pixel output valve and the uniform value of pixel is different, and same imaging sensor
The dark output valve of maximum pixel output valve bright with maximum pixel, the dark output valve of minimum pixel and the bright output valve of minimum pixel, pixel are dark
Uniform value is exported to differ with the reference range corresponding to the bright uniform value of output of pixel.Benchmark model corresponding to each output valve
Enclose can by a large amount of qualified images sensor samples to the background datas of effective pixel points be trained study and obtain.
In the present embodiment, if maximum pixel output valve in the background data of the effective pixel points of described image sensor
In its corresponding first reference range, minimum pixel output valve is in its corresponding second reference range, and pixel output is equal
One value also in its corresponding third reference range, then illustrates that described image sensor for qualified products, is exported to user at this time
Detect qualified prompt message；Conversely, then illustrating described image sensor for non-qualified products, detected at this time to user's output
The warning information of non-qualified products.Wherein, the first reference range, the second reference range and third reference range are respectively difference
Reference range.
Above as can be seen that the detection method of imaging sensor provided in this embodiment is due to by obtaining imaging sensor
The background data of the effective pixel points of acquisition；Count maximum pixel output valve, the minimum pixel output valve in the background data；
The pixel output that the background data is calculated according to the maximum pixel output valve and the minimum pixel output valve is uniform
Value；Judge that whether the maximum pixel output valve, the minimum pixel output valve and the pixel export uniform value right
In the range of a reference value answered；If so, described image sensor is qualified products；If it is not, then described image sensor is does not conform to
Lattice product so as in the production process of currency examination device, measure whether imaging sensor is qualified, reduces the figure that supplier provides
As the fraction defective of sensor.
Fig. 2 is the realization flow of the detection method of the imaging sensor signal that another preferable implementation example of the present invention provides
Figure.Shown in Figure 2, the detection method of imaging sensor provided in this embodiment specifically includes following steps：
Step S201 obtains the dark background data of the collected effective pixel points of described image sensor；The dark background
The image data of the collected effective pixel points of imaging sensor when data refer to not place test sample on measurement jig；
Step S202 calculates the dark output valve of maximum pixel, the dark output valve of minimum pixel and picture of the dark background data
Element secretly exports uniform value；
Step S203 judges that the dark output valve of the maximum pixel, the dark output valve of minimum pixel and the pixel secretly export
It is uniform value whether its respectively corresponding to reference range in；If so, enter step S204；If it is not, then jump to step
S211；
Step S204, obtains the first bright background data of the collected effective pixel points of described image sensor, and described the
The image data of the collected effective pixel points of imaging sensor one bright background data is places white sample on measurement jig when；
Step S205, the bright output valve of the first maximum pixel, the first minimum pixel for calculating the first bright background data are bright
Output valve and the bright uniform value of output of the first pixel；
Step S206 judges the bright output valve of first maximum pixel, the bright output valve of the first minimum pixel and the first picture
Element it is bright output it is uniform value whether its respectively corresponding to reference range in；If so, enter step S207；If it is not, it redirects
To step S211；
Step S207, control driving described image sensor cylinder described image sensor is moved to be placed with it is transparent
On jig at test sample, when detecting the cylinder moving in place, the second bright background data is acquired；
Step S208, the bright output valve of the second maximum pixel, the second minimum pixel for calculating the first bright background data are bright
Output valve and the bright uniform value of output of the second pixel；
Step S209 judges the bright output valve of second maximum pixel, the bright output valve of the second minimum pixel and the second picture
Element it is bright output it is uniform value whether its respectively corresponding to reference range in；If so, enter step S210；If it is not, then into
Enter step S211；
Step S210, the qualified prompt message of output described image sensor detection；
Step S211, output described image sensor detect underproof prompt message.
Above as can be seen that the detection method of imaging sensor provided in this embodiment equally can be in the production of currency examination device
In the process, by the background data for the effective pixel points for analyzing imaging sensor, whether measurement imaging sensor is qualified, Ke Yi
It in currency examination device production process, avoids using underproof imaging sensor, reduces the probability that bad products flow into producing line, subtract significantly
The fraction defective for the imaging sensor that Shao Liao suppliers provide.
Fig. 3 is the structure diagram of the detecting system for the imaging sensor that a preferred embodiment of the present invention provides, in order to just
Part related to the present embodiment is illustrate only in explanation.
It is shown in Figure 3, the detecting system 3 of imaging sensor provided in this embodiment, including：
Acquiring unit 31, for obtaining the background data of the effective pixel points of imaging sensor acquisition；
Statistic unit 32, for counting the maximum pixel output valve in the background data, minimum pixel output valve；
Computing unit 33, described in being calculated according to the maximum pixel output valve and the minimum pixel output valve
The pixel of background data exports uniform value；
Judging unit 34, for judging the maximum pixel output valve, the minimum pixel output valve and the pixel
Uniform value is exported whether in the range of corresponding a reference value；
Output unit 35, for if so, described image sensor is qualified products；If it is not, then described image sensor
For substandard product.
Optionally, the computing unit 33 is specifically used for：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform
Value；Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminIt is exported for minimum pixel
Value.
Optionally, the acquiring unit 31 includes：
Dark background data capture unit 311, for obtaining the dark background of the effective pixel points of described image sensor acquisition
Data；And
Bright background data acquiring unit 312, for obtaining the bright background of the effective pixel points of described image sensor acquisition
Data；
Wherein, imaging sensor is collected when the dark background data refer to not place test sample on measurement jig has
Imitate the image data of pixel；Imaging sensor collects when stated clearly background data refers to place test sample on measurement jig
Effective pixel points image data.
Optionally, the test sample is white sample and/or transparent sample.
It should be noted that each unit of above system provided in an embodiment of the present invention, due to real with the method for the present invention
It applies example and is based on same design, the technique effect brought is identical with the method for the present invention embodiment, and particular content can be found in the present invention
Narration in embodiment of the method, details are not described herein again.
Above as can be seen that the detecting system of imaging sensor provided in this embodiment equally can be in the production of currency examination device
In the process, by the background data for the effective pixel points for analyzing imaging sensor, whether measurement imaging sensor is qualified, Ke Yi
It in currency examination device production process, avoids using underproof imaging sensor, reduces the probability that bad products flow into producing line, subtract significantly
The fraction defective for the imaging sensor that Shao Liao suppliers provide.
It should be understood that the size of the serial number of each step is not meant to the priority of execution sequence, each process in above-described embodiment
Execution sequence should determine that the implementation process without coping with the embodiment of the present invention forms any limit with its function and internal logic
It is fixed.
Fig. 4 is the schematic diagram of the detection device for the imaging sensor that a preferred embodiment of the present invention provides.As shown in figure 4,
The detection device 4 of the imaging sensor of the embodiment includes：It processor 40, memory 41 and is stored in the memory 41
And the computer program 42 that can be run on the processor 40.The processor 40 is realized when performing the computer program 42
Step in above-mentioned each embodiment of the method, such as step S101 to S104 shown in FIG. 1.Alternatively, the processor 40 performs
The function of each unit in above-mentioned each system embodiment, such as module 31 to 35 shown in Fig. 3 are realized during the computer program 42
Function.
Illustratively, the computer program 42 can be divided into one or more units, one or more of
Unit is stored in the memory 41, and is performed by the processor 40, to complete the present invention.One or more of lists
Member can complete the series of computation machine program instruction section of specific function, which is used to describe the computer journey
The implementation procedure of sequence 42 in the system.For example, the computer program 42 can be divided into acquiring unit 31, statistics list
Member 32, computing unit 33, judging unit 34 and output unit 35, each unit concrete function are as follows：
Acquiring unit 31, for obtaining the background data of the effective pixel points of imaging sensor acquisition；
Statistic unit 32, for counting the maximum pixel output valve in the background data, minimum pixel output valve；
Computing unit 33, described in being calculated according to the maximum pixel output valve and the minimum pixel output valve
The pixel of background data exports uniform value；
Judging unit 34, for judging the maximum pixel output valve, the minimum pixel output valve and the pixel
Uniform value is exported whether in the range of corresponding a reference value；
Output unit 35, for if so, described image sensor is qualified products；If it is not, then described image sensor
For substandard product.
The detection device 4 of described image sensor may include, but be not limited only to, processor 40, memory 41.This field skill
Art personnel are appreciated that Fig. 4 is only the example of the detection device 4 of imaging sensor, do not form the inspection to imaging sensor
The restriction of device 4 is surveyed, can include either combining certain components or different components than illustrating more or fewer components,
Such as the terminal can also include input-output equipment, network access equipment, bus etc..
Alleged processor 40 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng.
The memory 41 can be the internal storage unit of the detection device 4 of described image sensor, such as device
Hard disk or memory.The memory 41 can also be the External memory equipment of described device, such as be equipped in described device slotting
Connect formula hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash memory
Block (Flash Card) etc..Further, the memory 41 can also both include the internal storage unit of described device or wrap
Include External memory equipment.The memory 41 be used to storing the computer program and other programs needed for the terminal and
Data.The memory 41 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each work(
Can unit, module division progress for example, in practical application, can be as needed and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device are divided into different functional units or module, more than completion
The all or part of function of description.Each functional unit, module in embodiment can be integrated in a processing unit, also may be used
To be that each unit is individually physically present, can also two or more units integrate in a unit, it is above-mentioned integrated
The form that hardware had both may be used in unit is realized, can also be realized in the form of SFU software functional unit.In addition, each function list
Member, the specific name of module are not limited to the protection domain of the application also only to facilitate mutually distinguish.Above system
The specific work process of middle unit, module can refer to the corresponding process in preceding method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may realize that each exemplary lists described with reference to the embodiments described herein
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is performed with hardware or software mode, specific application and design constraint depending on technical solution.Professional technician
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that the detection device of disclosed device/imaging sensor
And method, it can realize by another way.For example, the detection device of device/imaging sensor described above is implemented
Example is only schematical, for example, the division of the module or unit, only a kind of division of logic function, in actual implementation
There can be other dividing mode, such as multiple units or component may be combined or can be integrated into another system or one
A little features can be ignored or not perform.Another point, shown or discussed mutual coupling or direct-coupling or communication connect
It can be by some interfaces, device or the INDIRECT COUPLING of unit or communication connection to connect, and can be electrical, machinery or other shapes
Formula.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent product sale or uses
When, it can be stored in a computer read/write memory medium.Based on such understanding, the present invention realizes above-described embodiment side
All or part of flow in method can also instruct relevant hardware to complete, the computer by computer program
Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each
The step of a embodiment of the method..Wherein, the computer program includes computer program code, the computer program code
Can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium can
To include：Can carry the computer program code any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disc,
CD, computer storage, read-only memory (Read-Only Memory, ROM), random access memory (Random
Access Memory, RAM), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the meter
The content that calculation machine readable medium includes can carry out appropriate increase and decrease according to legislation in jurisdiction and the requirement of patent practice,
Such as in certain jurisdictions, according to legislation and patent practice, it is electric carrier signal and electricity that computer-readable medium, which does not include,
Believe signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to aforementioned reality
Example is applied the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment modifies or carries out equivalent replacement to which part technical characteristic；And these are changed
Or replace, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of detection method of imaging sensor, which is characterized in that including：
Obtain the background data of the effective pixel points of imaging sensor acquisition；
Count maximum pixel output valve, the minimum pixel output valve in the background data；
The pixel that the background data is calculated according to the maximum pixel output valve and the minimum pixel output valve exports
Uniform value；
Judge that whether the maximum pixel output valve, the minimum pixel output valve and the pixel export uniform value right
In the range of a reference value answered；
If so, described image sensor is qualified products；
If it is not, then described image sensor is substandard product.
2. the detection method of imaging sensor as described in claim 1, which is characterized in that described defeated according to the maximum pixel
Go out value and the minimum pixel output valve is calculated the pixel of the background data and exports uniform value and specifically include：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform value；
Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminFor minimum pixel output valve.
3. the detection method of imaging sensor as described in claim 1, which is characterized in that the acquisition imaging sensor acquisition
The background datas of effective pixel points include：
Obtain the dark background data of the effective pixel points of described image sensor acquisition；And
Obtain the bright background data of the effective pixel points of described image sensor acquisition；
Wherein, imaging sensor collected effective picture when the dark background data refer to not place test sample on measurement jig
The image data of vegetarian refreshments；Imaging sensor is collected when stated clearly background data refers to place test sample on measurement jig has
Imitate the image data of pixel.
4. the detection method of imaging sensor as claimed in claim 3, which is characterized in that the test sample is white sample
And/or transparent sample.
5. a kind of detecting system of imaging sensor, which is characterized in that including：
Acquiring unit, for obtaining the background data of the effective pixel points of imaging sensor acquisition；
Statistic unit, for counting the maximum pixel output valve in the background data, minimum pixel output valve；
Computing unit, for the background number to be calculated according to the maximum pixel output valve and the minimum pixel output valve
According to pixel export uniform value；
Judging unit, for judging that the maximum pixel output valve, the minimum pixel output valve and pixel output are equal
Whether one value is in the range of corresponding a reference value；
Output unit, for if so, described image sensor is qualified products；If it is not, then described image sensor is does not conform to
Lattice product.
6. the detecting system of imaging sensor as claimed in claim 5, which is characterized in that the computing unit is specifically used for：
According to formula UEp=(VEpmax-VEpmin)/VEpmax* 100% pixel that the background data is calculated exports uniform value；
Wherein, UEpPixel for background data exports uniform value, VEpmaxFor maximum pixel output valve, VEpminFor minimum pixel output valve.
7. the detecting system of imaging sensor as claimed in claim 5, which is characterized in that the acquiring unit includes：
Dark background data capture unit, for obtaining the dark background data of the effective pixel points of described image sensor acquisition；With
And
Bright background data acquiring unit, for obtaining the bright background data of the effective pixel points of described image sensor acquisition；
Wherein, imaging sensor collected effective picture when the dark background data refer to not place test sample on measurement jig
The image data of vegetarian refreshments；Imaging sensor is collected when stated clearly background data refers to place test sample on measurement jig has
Imitate the image data of pixel.
8. the detecting system of imaging sensor as claimed in claim 7, which is characterized in that the test sample is white sample
And/or transparent sample.
9. a kind of detection device of imaging sensor, including memory, processor and it is stored in the memory and can be
The computer program run on the processor, which is characterized in that the processor is realized such as when performing the computer program
The step of any one of Claims 1-4 the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of realization such as any one of Claims 1-4 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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