CN106303505A - Camera module color consistency detection device and detection method - Google Patents
Camera module color consistency detection device and detection method Download PDFInfo
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- CN106303505A CN106303505A CN201510287416.0A CN201510287416A CN106303505A CN 106303505 A CN106303505 A CN 106303505A CN 201510287416 A CN201510287416 A CN 201510287416A CN 106303505 A CN106303505 A CN 106303505A
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Abstract
A kind of camera module color consistency detection device, for camera lens is carried out color consistency detection, including: light box, including a cavity and for installing the installation portion of camera module to be measured, be formed with a unthreaded hole run through on described installation portion, described unthreaded hole in the cavity light go out light；Light source, is contained in described cavity and the exiting surface of described light source is relative with described installation portion；All mating plate, is contained in described cavity, and between described light source and described installation portion；And graphics processing unit, can electrically connect with camera module to be measured, for receiving the image captured by camera module to be measured, and analyze the Lab chromaticity coordinate value obtaining this image.The invention still further relates to a kind of camera module color consistency detection method.
Description
Technical field
The present invention relates to a kind of color consistency detection device and detection method, particularly relate to detection device and the detection method of a kind of color consistency for camera module.
Background technology
Along with the development of digital technology, digital camera is extensively applied by people, people to digital camera demand ever-increasing while, to numeral camera properties requirement more and more higher.Camera module is the core component of digital camera, the performance of camera module determines digital camera shooting effect, camera module is being carried out performance test, one important test is to the test to its color consistency under identical external environment condition of a large amount of photographic head, it is specially, substantial amounts of photographic head is used to shoot under the light source of identical colour temperature, the R(of the picture then shot by calculating is red, red), G(is green, green), B(is blue, blue) ratio judge that the color aspect of this substantial amounts of photographic head is the most consistent.Main difficult point of this test is external environment condition to need for a long time to keep consistent, otherwise can image test result.
Summary of the invention
In view of this, it is necessary to provide a kind of and keep camera module color consistency detection device and the detection method that external environment condition is stable.
A kind of camera module color consistency detection device, for camera lens is carried out color consistency detection, including: light box, including a cavity and for installing the installation portion of camera module to be measured, be formed with a unthreaded hole run through on described installation portion, described unthreaded hole in the cavity light go out light；Light source, is contained in described cavity and the exiting surface of described light source is relative with described installation portion；All mating plate, is contained in described cavity, and between described light source and described installation portion；And graphics processing unit, can electrically connect with camera module to be measured, for receiving the image captured by camera module to be measured, and analyze the Lab chromaticity coordinate value obtaining this image.
A kind of camera module color consistency detection method, for detecting the color consistency of camera module, including: an above-mentioned camera module color consistency detection device is provided；Camera module to be measured is installed on described installation portion, and makes the thing side of camera module to be measured be directed at described unthreaded hole；By described camera module light sensing and form image, and image is passed to described graphics processing unit；Lab chromaticity coordinate value (the R of this image is obtained by described graphics processing unit analysis, G, B), by calculating Lab chromaticity coordinate ratio (R/G, B/G) of this image, and by described Lab chromaticity coordinate ratio and a standard value range phase comparison, if described Lab chromaticity coordinate ratio falls into described standard value range, judge that the color of described camera module is consistent, otherwise, it is judged that the color of described camera module is inconsistent.
Compared to prior art, the camera module color consistency detection device that the present invention provides is by arranging a light box, and use the uniform light that equal mating plate makes light source send stable, so that when camera module is detected, test condition is stable and consistent, such that it is able to obtain accurate color consistency test result.
Accompanying drawing explanation
Fig. 1 is the three-dimensional combination schematic diagram of the camera module color consistency detection device that the embodiment of the present invention provides.
Fig. 2 is the decomposing schematic representation of the camera module color consistency detection device that the embodiment of the present invention provides.
Fig. 3 is the decomposing schematic representation of the light box of the camera module color consistency detection device in Fig. 2.
Main element symbol description
| Camera module color consistency detection device | 100 | ||
| Camera module | 200 | ||
| Workbench | 10 | ||
| Camera module fixture | 20 | ||
| Light box | 30 | ||
| Light source | 40 | ||
| All mating plates | 50 | ||
| Display unit | 60 | ||
| Graphics processing unit | 70 | ||
| Fan | 80 | ||
| Installing hole | 101 | ||
| First support | 102 | ||
| Second support | 103 | ||
| First table top | 104 | ||
| Second table top | 105 | ||
| Top board | 301 | ||
| Base plate | 302 | ||
| Side plate | 303 | ||
| Installation portion | 3011 | ||
| Unthreaded hole | 3012 | ||
| End face | 3013 | ||
| Cavity | 304 | ||
| Light source base | 305 | ||
| First equal mating plate gripper shoe | 306 | ||
| Second equal mating plate gripper shoe | 306 | ||
| First equal mating plate accepting hole | 3061 | ||
| Second equal mating plate accepting hole | 3071 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to Fig. 1-3, the camera module color consistency detection device 100 that the embodiment of the present invention provides is for carrying out color consistency detection to multiple camera modules 200.
Camera module color consistency detection device 100 includes that a workbench 10, is located at the camera module fixture 20, above workbench 10 table top and is located at the light box 30, below this workbench 10 table top and is located at graphics processing unit 70 and the fan 80 that equal mating plate 50, display unit 60, that the light source 40, two within light box 30 is arranged within light box 30 is electrical connected with display unit 60.
Workbench 10 includes the first support the 102, second support the 103, first table top 104 and the second table top 105.Described first table top 104 is provided with a through installing hole 101, and described installing hole 101 is used for disposing described light box 30.In the present embodiment, described first table top 104 is supported by described first support 102, described first support 102 is also connected with one second support 103, the height of described second support 103 is less than the height of described first support 102, described second table top 105 is supported by described second support 103, and described second table top 105 is used for carrying described light box 30 and described fan 80.
Described camera module fixture 20 is for fixing camera module 200 to be measured, and described camera module fixture 20 can be holder or fastener etc., and replaceable to be applicable to the camera module 200 of difformity size.
Described light box 30 includes relative top board 301, base plate 302 and is connected to the side plate 303 between top board 301 and base plate 302.Described top board 301, base plate 302, side plate 303 are all for being made up of bakelite plate, and substantially seamless connection, preferably to keep the temperature within light box 30.Described top board 301 center is formed with one for installing the installation portion 3011 of camera module to be measured, described installation portion 3011 is prominent to the direction away from described base plate 302, described installation portion 3011 can coordinate be contained in described installing hole 101 in and can be fixed with described workbench 10 by fixation kit (not shown) such as bolt etc..Described installation portion 3011 center is formed with a unthreaded hole 3012 running through described installation portion 3011, described unthreaded hole 3012 i.e. for described light box 30 go out light, i.e. light in light box 30 can penetrate to the camera module being installed on described installation portion 3011 from described unthreaded hole 3012.Described installation portion 3011 is substantially flush with the table top of described workbench 10 after being contained in described installing hole 101, and described camera module fixture 20 can be carried on described installation portion 3011.Described base plate 302 is carried on described second support 103.
Described top board 301, base plate 302 and described side plate 303 surround formation one cavity 304, and described cavity is used for housing described light source 40 and two equal mating plates 50.It is disposed with the equal mating plate gripper shoe of light source base 305, first 306 and the second equal mating plate gripper shoe 307 Zi near described base plate 302 near described top board 301 in described cavity 304.The described equal mating plate gripper shoe of light source base 305, first 306 and the second equal mating plate gripper shoe 307 are both secured on described side plate 303.Being provided with at least one light source jack 3051 on described light source base 305, described light source jack 3051 is for grafting light source 40.Described first equal mating plate gripper shoe 306 center is provided with one first equal mating plate accepting hole 3061, described second equal mating plate gripper shoe 307 center is provided with the second equal mating plate accepting hole 3071, first and second equal mating plate accepting hole 3061,3071 described is for housing two described equal mating plates 50 respectively, and the diameter of the diameter mating plate equal with said two 50 of first and second equal mating plate accepting hole 3061,3071 described is roughly the same.In the present embodiment, described light box 30 and described cavity 304 are tetragonal body shape.The height of described light box 30 is 300 millimeter, length and width are respectively 180 millimeters and 170 millimeter, distance between described first equal mating plate gripper shoe 306 and described light source 40 exiting surface is more than 100 millimeters, distance between first and second equal mating plate gripper shoe 306,307 described is 100 millimeter, described second equal distance between mating plate gripper shoe 307 and described top board 301 is 50 millimeter, and the diameter of first and second equal mating plate accepting hole 3061,3071 described is 100 millimeter.
The described light source 40 standard light source used by test photographic head color, described light source 40 can be plugged in described light source jack 3051.Described light source 40 is incandescent light source, and its colour temperature and power can change by adjusting the voltage of light source, in the present embodiment, sets its colour temperature as 4700 Kelvins (K) left and right, and power is 50 watts (W) left and right.
Described equal mating plate 50 is the equal mating plate of optical glass, more uniform for the light making described light source 40 send.Two described equal mating plates 50 can be respectively arranged in first and second equal mating plate accepting hole 3061,3071 described respectively.
Described display unit 60 is arranged on the first table top 104 of described workbench 10, and it is for showing the image that the light that described camera module 200 senses is formed, and it is additionally operable to show camera module color consistency testing result.In the present embodiment, described display unit 60 is a display.
The storage of described graphics processing unit 70 has the standard value range (A0 ± a, C0 ± c) of the Lab colourity ratio under a series of test condition.Described graphics processing unit 70 is electrically connected with described display unit 60, also electrically connects with camera module 200 to be detected during test.Described graphics processing unit 70 is for receiving the image captured by camera module 200, and analyze the Lab chromaticity coordinate value (R obtaining this image, G, B), and store and calculate the Lab chromaticity coordinate value ratio (R/G of this image, B/G), described graphics processing unit 70 is additionally operable to multiple camera modules 200 Lab chromaticity coordinate value ratio under same test condition and described standard value range comparison, thus judge that multiple camera module 200 color under same test condition is the most consistent, and for test result is exported to described display unit 60.In other embodiments, described graphics processing unit 70 can not also store the standard value range of described Lab colourity ratio and be not used in and judge that multiple camera module 200 color under same test condition is the most consistent, and it is only used for analyzing the Lab chromaticity coordinate value of camera module 200 to be measured, calculate Lab chromaticity coordinate ratio and judge that color consistency is by manually carrying out.
Described fan 80 is arranged at the outside of described light box 30, for lowering the temperature described light box 30, so that the temperature in described light box 30 keeps substantially constant.
In the present embodiment, described light source 40, display unit 60, graphics processing unit 70 and described fan 80 are all electrically connected with a power supply.
Camera module color consistency detection method of the present invention comprises the following steps:
The first step, it is provided that an above-mentioned camera module color consistency detection device 100；Described light source 40 is plugged on the light source jack 3051 of described light source base 305, and equal for said two mating plate 50 is respectively arranged in first and second equal mating plate accepting hole 3061,3071 described；The described installation portion 3011 of described light box 30 coordinated in being contained in described installing hole 101 and fixed with described workbench 10 by fixation kit；
Second step, it is provided that n camera module 200 to be detected, n is the natural number more than 1；
3rd step, is fixed on a camera module 200 to be detected described camera module fixture 20, and makes the thing side of described camera module 200 towards described light source 30 and be directed at described unthreaded hole 3012；
4th step, by described camera module 200 light sensing and form image, and passes to described graphics processing unit 70 by image；Wherein, by described camera module 200 light sensing and when forming image, adjusting the voltage that light source 40 is led to, the colour temperature making the light through the equal mating plate of said two 50 is 3700K, and arranges the parameters such as following table of described camera module 200:
| Camera module parameter | Impose a condition |
| Automatic exposure | Open |
| Camera lens correction | Open |
| AWB | Close |
| Gamma correction | Open |
| Sharpen | Close |
| Automatically bad point correction | Open |
| The average image number | 1 |
5th step, is analyzed the Lab chromaticity coordinate value obtaining this image, and remembers that this coordinate figure is (R1, G1, B1), and be calculated one group of ratio A1=R1/G1 by described graphics processing unit 70, C1=B1/G1；By this ratio (A1, C1) standard value range (A0 ± a of the Lab colourity ratio under this test condition stored with described graphics processing unit 70, C0 ± c) compare, judge this ratio ratio (A1, C1) this standard value range whether is fallen into, if fallen into, then judge that this camera module 200 color under same test condition detected is consistent, and test result is exported to described display unit 60, if beyond this standard value range, then judge that this camera module 200 color under same test condition is consistent, also test result is exported to described display unit 60.
6th step, repeats the 3rd step and the 5th step, until having detected all camera modules 200 to be detected.
The camera module color consistency detection device 100 of the technical program embodiment and detection method are by arranging a light box 30, and use the uniform light that two equal mating plates 50 make light source send stable, so that when camera module 200 is detected, test condition is stable and consistent, such that it is able to obtain accurate color consistency test result；It addition, light box 30 size of this case is less, testing cost can be saved.
It is understood that for the person of ordinary skill of the art, can conceive according to the technology of the present invention and make other various corresponding changes and deformation, and all these change all should belong to the protection domain of the claims in the present invention with deformation.
Claims (10)
1. a camera module color consistency detection device, for camera lens is carried out color consistency detection, including:
Light box, including a cavity and for installing the installation portion of camera module to be measured, described installation portion is formed with a unthreaded hole run through, described unthreaded hole in the cavity light go out light；
Light source, is contained in described cavity and the exiting surface of described light source is relative with described installation portion；
All mating plate, is contained in described cavity, and between described light source and described installation portion；And
Graphics processing unit, can electrically connect with camera module to be measured, for receiving the image captured by camera module to be measured, and analyzes the Lab chromaticity coordinate value obtaining this image.
2. camera module color consistency detection device as claimed in claim 1, it is characterized in that, also include that a camera module fixture, described camera module fixture are located at described containment portion and are carried on described installation portion, for fixing camera module to be measured.
3. camera module color consistency detection device as claimed in claim 1, it is characterised in that described light source is incandescent light source, and its colour temperature is about 4700 Kelvins, and power is about 50 watts.
4. camera module color consistency detection device as claimed in claim 1, it is characterised in that described light box is made up of bakelite plate.
5. camera module color consistency detection device as claimed in claim 1, it is characterised in that the quantity of described equal mating plate is two, and is arranged in successively between described light source and described installation portion.
6. camera module color consistency detection device as claimed in claim 1, it is characterized in that, the height of described light box is 300 millimeter, distance between the exiting surface of described light source and adjacent equal mating plate is 100 millimeter, distance between two equal mating plates is 50 millimeter, and the distance between described installation portion and neighbouring equal mating plate is 100 millimeter.
7. camera module color consistency detection device as claimed in claim 1, it is characterized in that, described graphics processing unit storage has the standard value range of the Lab colourity ratio under at least one test condition, described graphics processing unit is additionally operable to calculate the Lab chromaticity coordinate value ratio of this image, and for the Lab chromaticity coordinate value ratio that will record and described standard value range comparison, it is judged that the camera module surveyed color in this test condition is the most consistent.
8. camera module color consistency detection device as claimed in claim 1, it is characterized in that, also include a display unit being connected with described graphics processing unit, for showing camera module that described graphics processing unit judged color consistency result in this test condition.
9. a camera module color consistency detection method, for detecting the color consistency of camera module, including:
There is provided and detect device just like the camera module color consistency according to any one of claim 1-8；
Camera module to be measured is installed on described installation portion, and makes the thing side of camera module to be measured be directed at described unthreaded hole；
By described camera module light sensing and form image, and image is passed to described graphics processing unit；
Lab chromaticity coordinate value (the R of this image is obtained by described graphics processing unit analysis, G, B), by calculating Lab chromaticity coordinate ratio (R/G, B/G) of this image, and by described Lab chromaticity coordinate ratio and a standard value range phase comparison, if described Lab chromaticity coordinate ratio falls into described standard value range, judge that the color of described camera module is consistent, otherwise, it is judged that the color of described camera module is inconsistent.
10. camera module color consistency detection method as claimed in claim 9, it is characterized in that, by described camera module light sensing and when forming image, adjusting the voltage of above-mentioned light source makes the colour temperature of the light through the equal mating plate of said two be 3700 Kelvins, and the automatic exposure of described camera module, camera lens correction, gamma correction, the correction of automatic bad point are set, sharpen into unlatching, AWB, sharpen into closedown.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287416.0A CN106303505A (en) | 2015-05-29 | 2015-05-29 | Camera module color consistency detection device and detection method |
| TW104118898A TW201641921A (en) | 2015-05-29 | 2015-06-11 | Camera module color consistency testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287416.0A CN106303505A (en) | 2015-05-29 | 2015-05-29 | Camera module color consistency detection device and detection method |
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| CN106303505A true CN106303505A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510287416.0A Withdrawn CN106303505A (en) | 2015-05-29 | 2015-05-29 | Camera module color consistency detection device and detection method |
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| TW (1) | TW201641921A (en) |
Cited By (6)
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| CN108156455A (en) * | 2017-12-28 | 2018-06-12 | 上海传英信息技术有限公司 | A kind of camera testing device of intelligent terminal |
| CN109556723A (en) * | 2019-01-15 | 2019-04-02 | 佛山力合创新中心有限公司 | A kind of ceramics color detection device and its detection method |
| CN109724701A (en) * | 2019-03-06 | 2019-05-07 | 苏州视幻智能科技有限公司 | A kind of acetes chinensis device and online acetes chinensis method |
| CN109922196A (en) * | 2019-02-22 | 2019-06-21 | 上海龙旗科技股份有限公司 | Detection system and method |
| WO2020143331A1 (en) * | 2019-01-10 | 2020-07-16 | 苏州智华汽车电子有限公司 | Test system for high-precision and fully automatic drive recorder |
| CN111800626A (en) * | 2020-08-11 | 2020-10-20 | Oppo（重庆）智能科技有限公司 | Photographing consistency evaluation method and device, mobile terminal and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108156455A (en) * | 2017-12-28 | 2018-06-12 | 上海传英信息技术有限公司 | A kind of camera testing device of intelligent terminal |
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| CN109556723A (en) * | 2019-01-15 | 2019-04-02 | 佛山力合创新中心有限公司 | A kind of ceramics color detection device and its detection method |
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| CN109724701A (en) * | 2019-03-06 | 2019-05-07 | 苏州视幻智能科技有限公司 | A kind of acetes chinensis device and online acetes chinensis method |
| CN111800626A (en) * | 2020-08-11 | 2020-10-20 | Oppo（重庆）智能科技有限公司 | Photographing consistency evaluation method and device, mobile terminal and storage medium |
| CN111800626B (en) * | 2020-08-11 | 2022-04-26 | Oppo（重庆）智能科技有限公司 | Photographing consistency evaluation method and device, mobile terminal and storage medium |
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|---|---|
| TW201641921A (en) | 2016-12-01 |
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