CN103024426A - Test method of image shooting device - Google Patents
Test method of image shooting device Download PDFInfo
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- CN103024426A CN103024426A CN2011102858244A CN201110285824A CN103024426A CN 103024426 A CN103024426 A CN 103024426A CN 2011102858244 A CN2011102858244 A CN 2011102858244A CN 201110285824 A CN201110285824 A CN 201110285824A CN 103024426 A CN103024426 A CN 103024426A
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Abstract
The invention discloses a test method of an image shooting device which carries out test by using a quality parameter. The test method comprises the following steps of: providing a standard image which corresponds to a specific target and a predetermined criteria of a quality parameter difference, shooting a test image which corresponds to the same specific target by the image shooting device to be tested, extracting a standard image unit and a test image unit which can be provided at the same position in the standard image and the test image respectively, and then after extracting the standard image unit and the test image unit, comparing the quality parameters of the standard image unit and the test image unit at the same position to accurately identify whether the image shooting device has an exception. The test method of image shooting device can be realized by matching automatic equipment with testing software, so that the testing process of the manual inspection error can be solved, furthermore, the performance of the image shooting device can be tested by the consistent criteria to eliminate various deficiencies of the prior art.
Description
Technical field
The present invention is about a kind of method of testing of filming image equipment, and espespecially a kind of Q factor that utilizes comes the whether method of testing of abnormal of testing image capture apparatus.
Background technology
No matter be the electronic equipment of the sort of type, dispatch from the factory sell before, or before being assemblied in system, all need carry out performance test and have abnormal case person to eliminate performance, and along with the universalness of filming image equipment, volume microminiaturization, and functional diversities, fast and accurately performance test flow process also becomes more and more important.
Existing testing process for filming image equipment relies on desk checking more and tests.During actual the test, the tester can utilize first relevant control device to allow filming image equipment to be tested carry out filming image to obtain testing image, then, whether have the situations such as out of focus, distortion by individual's subjective experience and visual examination testing image again, whether the performance of judging accordingly filming image equipment abnormal.
Yet, dependence desk checking comes the mode to the filming image testing equipment, not only quite easily because artificial subjective factor occurs to judge by accident and then affect yield, and easily be subject to the speed limit of manual work and can't test rapidly and then delay the supply of material and the assemble flow of manufacturer.Moreover, because individual subjective experience can't be summarized unanimously, objectively criterion, so even if can correctly find the filming image equipment of property abnormality, also can't allow relevant maintenance personal, upstream manufacturer or downstream manufacturers clearly understand the problem place.
Summary of the invention
In view of the existing disadvantages of coming the testing image capture apparatus with desk checking, one of purpose that the present invention is main namely is to provide a kind of testing process that solves the desk checking error.
Reach in order to achieve the above object other purposes, the invention provides a kind of method of testing of filming image equipment, it may further comprise the steps: (1) provides the standard video of corresponding specific objective thing and the preassigned of Q factor difference; (2) utilize filming image equipment to take the testing image of corresponding identical specific objective thing; (3) extract respectively standard video unit and the testing image unit of a plurality of same positions at this standard video and this testing image; And this standard video unit of (4) comparison same position and the Q factor of this testing image unit, and surpass this predetermined standard time in the quantity of different this standard video unit of Q factor and this testing image unit, judge that this filming image equipment is for unusually.
Secondly, the present invention also provides the method for testing of another kind of filming image equipment, and it may further comprise the steps: (1) provides the standard video of corresponding specific objective thing and the preassigned of Q factor difference; (2) utilize filming image equipment to take the testing image of corresponding identical specific objective thing; (3) extract respectively standard video unit and the testing image unit of single same position at this standard video and this testing image; And (4) compare the Q factor of this standard video unit and this testing image unit, and surpass this predetermined standard time in the difference of the Q factor of this standard video unit and testing image unit, judges that this filming image equipment is for unusually.
In one embodiment, this standard video unit and testing image unit can be specified point or the specific region that lays respectively in this standard video and this testing image, and this specified point or this specific region can be arranged in the image critical edges of this standard video and this testing image.Moreover, extract standard video unit and the testing image unit of single one or more same positions, can be and extract single one or more same seat targets standard video unit and testing image unit, and actual enforcement can be achieved by relevant automation equipment collocation test software when of the present invention then.
Compared to existing measuring technology manually filming image equipment is tested, because the present invention utilizes Q factor to be compared in the standard video unit on the same position of standard video and testing image and testing image unit, and can be achieved by automation equipment collocation test software, so not only can solve the testing process of desk checking error, and can check with consistent criterion the performance of filming image equipment, therefore exempted the disadvantages of prior art.
Description of drawings
Fig. 1 is the testing process schematic diagram of the first embodiment of the method for testing of filming image equipment of the present invention;
Fig. 2 is the testing process schematic diagram of the second embodiment of the method for testing of filming image equipment of the present invention;
To be the present invention take the standard video unit and parse the schematic diagram of the Q factor of standard video unit at 0 standard video Fig. 3; And
To be the present invention take the testing image unit and parse the schematic diagram of the Q factor of testing image unit at testing image Fig. 4.
Among the figure:
A1, the standard video unit;
A2, the testing image unit;
B, darker regions;
G, gray area;
S11 ~ S14, step;
S21 ~ S24, step;
W, the light color zone.
Embodiment
Below by specific implementation kenel explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification.And the present invention also can be implemented or be used by other different implementation kenels.
Please be first with reference to the testing process schematic diagram of Fig. 1 with the first embodiment of the method for testing of understanding a kind of filming image equipment provided by the invention.It should be noted that, the method for testing of filming image equipment provided by the invention can be achieved by relevant automation equipment collocation test software.
Step S11 provides the standard video of corresponding specific objective thing and the preassigned of Q factor difference, then proceeds to step S12.In one embodiment, described specific objective thing can be object or the picture with obvious color range difference, and described standard video system is as the comparison standard of test filming image equipment to be tested.
Step S12 utilizes filming image equipment to be tested to take the testing image of corresponding identical specific objective thing, then proceeds to step S13.In one embodiment, in response to different test environments, step S11, step S12 be synchronization implementation optionally also.
Step S13 then proceeds to step S14 respectively at the standard video unit that extracts a plurality of same positions in this standard video and the testing image and testing image unit.In one embodiment, standard video unit and testing image unit are specified point or the specific region that lays respectively in standard video and the testing image, and described specified point or specific region, can be arranged in the image critical edges of standard video and testing image.
Specifically, if the specific objective system is the picture with obvious color range difference, the image that then has in standard video and the testing image has obvious color range difference equally, and at this moment, described specified point or specific region can be set on the image critical edges of different color ranges.And the standard video unit and the testing image unary system that extract a plurality of same positions can be implemented by coordinate, namely extract a plurality of same seat targets standard video unit and testing image unit.
The standard video unit of step S14 comparison same position and the Q factor of testing image unit, and surpass aforesaid predetermined standard time in the different standard video unit of Q factor and the quantity of testing image unit judge that this filming image equipment is for unusually.In one embodiment, described Q factor can be corresponding to resolution, brightness or color, but not as limit.
Specifically, suppose that the standard video unit of extraction and the quantity of testing image unit are all ten, and described preassigned can be set as 50 percent, with this standard, behind the Q factor of the standard video unit of having compared all same positions and testing image unit, if the standard video unit that Q factor is different and the quantity of testing image unit further judge namely that for surpassing five abnormal case has occured the performance of filming image equipment.Certainly, described preassigned can be considered or manufacturer requires and adjusts to some extent in response to different costs.And because standard video unit and testing image unit can be positioned on the image critical edges, whether produce distortion, the abnormal case such as out of focus therefore more can judge rapidly.
The invention provides a kind of testing process schematic diagram of the second embodiment of method of testing of filming image equipment with understanding referring again to Fig. 2.What need first explanation is that the step S21 of Fig. 2 and step S22 are identical with step S11 and the step S12 of Fig. 1, therefore do not given unnecessary details at this.
Step S23 extracts respectively standard video unit and the testing image unit of single same position at standard video and testing image, then proceed to step S24.In brief, step S23 does not need as extracting standard video unit and the testing image unit of a plurality of same positions as the abovementioned steps S13.
And step S23 identical with abovementioned steps S13 be, standard video unit and testing image unit can be specified point or the specific region that lays respectively in standard video and the testing image equally, and described specified point or specific region can be arranged in the image critical edges of standard video and testing image equally.
Step S24 compares the Q factor of this standard video unit and testing image unit, and surpasses aforesaid predetermined standard time in the difference of the Q factor of this standard video unit and testing image unit, judges that this filming image equipment is for unusually.
For instance, suppose that preassigned is set as ten Q factor units, when having produced more than ten Q factor unit between the Q factor of standard video unit and testing image unit, can judge that the performance of filming image equipment has occured unusually.And identical with abovementioned steps S14 be, described Q factor equally can be corresponding to resolution, brightness or color, but not as limit.
In order further to understand the method for testing of aforementioned filming image equipment, see also Fig. 3,4, wherein, Fig. 3 is the schematic diagram of shooting the standard video unit and parse the Q factor of standard video unit in standard video, and Fig. 4 is for shooting testing image unit and the schematic diagram that parses the Q factor of testing image unit in testing image.
In Fig. 3 (A), image with light color zone (W) and darker regions (B) is standard video, and standard video unit A1 is positioned at the light color zone, and shown in Fig. 3 (B), A1 system in standard video unit is resolved out the RGB three primary colors of " 110,110,110 ", that is, parse Q factor corresponding to color.
In Fig. 4 (A), image with light color zone (W), darker regions (B) and gray area (G) is testing image, and testing image unit A2 is positioned on the image critical edges of light color zone and darker regions, wherein, the position of testing image unit A2 is identical with the position of standard video unit A1, and shown in Fig. 4 (B), A2 system in testing image unit is resolved out the RGB three primary colors of " 148,148,148 ", namely parses the Q factor corresponding to color.
For example, suppose that preassigned is set as ten Q factor units, at this moment, because of testing image unit A2 corresponding to the Q factor of color image unit A1 ten the Q factor units of Q factor corresponding to color that are above standard, such as 148+148+148-110-110-110〉10, therefore, judge that namely abnormal case has occured filming image equipment.Certainly, also can take respectively for example is ten a plurality of standard videos unit A1 and testing image unit A2, and preassigned is set as long as the quantity of the different standard video unit A1 of Q factor and testing image unit A2 surpasses five, judge that namely abnormal case has occured filming image equipment.
In sum, because the present invention can utilize Q factor that standard video and testing image are compared one or more standard videos unit and the testing image unit on same position, and can carry out actual operation by automation equipment collocation test software, so not only can be quick, correctly carry out the inspection process of filming image equipment, and can be with unanimously, objectively criterion is checked the performance of filming image equipment, compared to existing measuring technology manually filming image equipment is tested, the present invention has avoided easy generation erroneous judgement, easily postpone processing procedure, and can't summarize the disappearances such as consistent and objective criterion.
Above-mentioned enforcement kenel only illustrates principle of the present invention and effect thereof illustratively, but not is used for restriction the present invention.Any personage who has the knack of this skill all can be under spirit of the present invention and category, and above-mentioned enforcement kenel is modified and changed.Therefore, the scope of the present invention, claim is listed as described later.
Claims (10)
1. the method for testing of a filming image equipment, it is characterized in that: it may further comprise the steps:
(1) provides the standard video of corresponding specific objective thing and the preassigned of Q factor difference;
(2) utilize this filming image equipment to take testing image that should the specific objective thing;
(3) extract respectively standard video unit and the testing image unit of a plurality of same positions at this standard video and this testing image; And
(4) this standard video unit of comparison same position and the Q factor of this testing image unit, and surpass this predetermined standard time in the quantity of different this standard video unit of this Q factor and this testing image unit, judge that this filming image equipment is for unusually.
2. the method for testing of filming image equipment as claimed in claim 1, it is characterized in that: wherein, this standard video unit and this testing image unit are specified point or the specific region that lays respectively in this standard video and this testing image.
3. the method for testing of filming image equipment as claimed in claim 2, it is characterized in that: wherein, this specified point or this specific region are arranged in the image critical edges of this standard video and testing image.
4. the method for testing of filming image equipment as claimed in claim 1 is characterized in that: wherein, extract this standard video unit of a plurality of same seat targets and testing image unit at this standard video and this testing image respectively in step (3).
5. the method for testing of filming image equipment as claimed in claim 1 is characterized in that: wherein, and the corresponding resolution of this Q factor, brightness or color.
6. the method for testing of a filming image equipment is characterized in that: may further comprise the steps:
(1) provides the standard video of corresponding specific objective thing and the preassigned of Q factor difference;
(2) utilize this filming image equipment to take testing image that should the specific objective thing;
(3) extract respectively standard video unit and the testing image unit of single same position at this standard video and this testing image; And
(4) compare the Q factor of this standard video unit and this testing image unit, and surpass this predetermined standard time in the difference of the Q factor of this standard video unit and this testing image unit, judge that this filming image equipment is for unusually.
7. the method for testing of filming image equipment as claimed in claim 6, it is characterized in that: wherein, this standard video unit and this testing image unit are specified point or the specific region that lays respectively in this standard video and this testing image.
8. the method for testing of filming image equipment as claimed in claim 7 is characterized in that: wherein, this specified point or this specific region system are arranged in the image critical edges of this standard video and testing image.
9. the method for testing of filming image equipment as claimed in claim 6 is characterized in that: wherein, extract this standard video unit of single same seat target and testing image unit respectively at this standard video and this testing image in step (3).
10. the method for testing of filming image equipment as claimed in claim 6 is characterized in that: wherein, and the corresponding resolution of this Q factor, brightness or color.
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| CN2011102858244A CN103024426A (en) | 2011-09-23 | 2011-09-23 | Test method of image shooting device |
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| CN2011102858244A CN103024426A (en) | 2011-09-23 | 2011-09-23 | Test method of image shooting device |
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| CN104104944A (en) * | 2013-04-12 | 2014-10-15 | 名硕电脑(苏州)有限公司 | Detection method of video signal and detection device of video signal |
| CN105812785A (en) * | 2014-12-31 | 2016-07-27 | 饰而杰汽车制品（苏州）有限公司 | Device used for detecting imaging device and method used for detecting imaging device |
| CN108055532A (en) * | 2017-12-27 | 2018-05-18 | 上海传英信息技术有限公司 | Automate the method and apparatus of matching test card |
| CN110225336A (en) * | 2019-06-21 | 2019-09-10 | 京东方科技集团股份有限公司 | Assess method and device, the electronic equipment, readable medium of Image Acquisition precision |
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| CN1661456A (en) * | 2004-02-23 | 2005-08-31 | 英华达(上海)电子有限公司 | Method for automatic testing camera, testing system and storing media |
| CN101330633A (en) * | 2007-06-21 | 2008-12-24 | 英业达股份有限公司 | Equipment and method for detecting image viewfinding device |
| US20110102603A1 (en) * | 2009-11-02 | 2011-05-05 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | System and method for testing a camera module of an electronic device |
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| TW200516508A (en) * | 2003-11-11 | 2005-05-16 | Chung Shan Inst Of Science | Inspection system and method for image capture quality |
| CN1661456A (en) * | 2004-02-23 | 2005-08-31 | 英华达(上海)电子有限公司 | Method for automatic testing camera, testing system and storing media |
| CN101330633A (en) * | 2007-06-21 | 2008-12-24 | 英业达股份有限公司 | Equipment and method for detecting image viewfinding device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104104944A (en) * | 2013-04-12 | 2014-10-15 | 名硕电脑(苏州)有限公司 | Detection method of video signal and detection device of video signal |
| CN105812785A (en) * | 2014-12-31 | 2016-07-27 | 饰而杰汽车制品（苏州）有限公司 | Device used for detecting imaging device and method used for detecting imaging device |
| CN108055532A (en) * | 2017-12-27 | 2018-05-18 | 上海传英信息技术有限公司 | Automate the method and apparatus of matching test card |
| CN110225336A (en) * | 2019-06-21 | 2019-09-10 | 京东方科技集团股份有限公司 | Assess method and device, the electronic equipment, readable medium of Image Acquisition precision |
| US11314979B2 (en) | 2019-06-21 | 2022-04-26 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Method and apparatus for evaluating image acquisition accuracy, electronic device and storage medium |
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Application publication date: 20130403 |