CN107911694A - A kind of camera lens of testing run burnt method and system - Google Patents
A kind of camera lens of testing run burnt method and system Download PDFInfo
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- CN107911694A CN107911694A CN201711338869.7A CN201711338869A CN107911694A CN 107911694 A CN107911694 A CN 107911694A CN 201711338869 A CN201711338869 A CN 201711338869A CN 107911694 A CN107911694 A CN 107911694A
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- definition values
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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
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- Health & Medical Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The present invention discloses a kind of camera lens of testing and runs burnt method and system, is related to camcorder technology field, the test camera lens, which run burnt method, includes step：S101, sets environment control unit, so that the environment control unit provides default test environment；S102, controls video camera to identification resolution chart shooting image, to obtain multiple test images every preset time；S103, determines the definition values of multiple test images；S104, according to the definition values of multiple test images, judges whether the camera lens of the video camera runs Jiao.The present invention runs burnt situation by the test camera lens automated in burn-in test, saves human cost, test result is accurately and reliably.
Description
Technical field
The present invention relates to camcorder technology field, more particularly to a kind of camera lens of testing to run burnt method and system.
Background technology
Video camera is common equipment in a kind of life, and optical image signal is changed into electric signal, in order to storing or
Person is transmitted.Photosignal is very faint, need to be amplified by pre-arcing road, then is handled and adjusted by various circuits, most
The standard signal obtained afterwards can be sent on the recording mediums such as video recorder and record, or propagate or be sent to prison by broadcasting system
Shown on visual organ.
In general need to carry out video camera a series of test, such as the patent of Publication No. CN 102404602A
A kind of video camera clarity detection method based on identification resolution chart is disclosed, is comprised the following steps：1) selecting video is clear
Test card is spent, selects the video camera of different levels of sharpness, the image of image-capturing resolution test card, measures the identification resolution chart
Sharpness function value, process is as follows：1.1) detection image level, vertical and population gradient；1.2) threshold process；1.3) calculate
Sharpness evaluation function value；1.4) normalized, by the clear of the image of the video camera shooting of obtained different levels of sharpness
Clear degree functional value is saved in database together with the levels of sharpness of video camera；2) with camera shooting clear degree to be detected
One width picture of test card, is calculated the sharpness function value of the width picture, the sharpness function value and number that will be obtained
Sharpness function value according to image in storehouse compares, and selects levels of sharpness of the immediate numerical value for video camera to be detected.The party
Method is tested the clarity of video camera imaging, but with the aging of camera lens, the imaging definition of video camera
It is unstable.
In general, the camera lens of video camera occurs that burnt phenomenon is run in aging after the regular hour has been used.
The situation for needing to run above-mentioned aging Jiao is tested.In general, it is longer to carry out the time of burn-in test, test
Cycle, test process needed to expend substantial amounts of human cost and time cost up to more than one month.
Further, since the test period length of aging, when using manually being tested, be easy to cause test error so that surveying
Test result is inaccurate.
The content of the invention
Carried out in camera lens when burnt test is run in aging, it is necessary to manually repeat to check that camera review and repeatedly setting are surveyed
Strip part, since test period is grown, wastes a large amount of manpowers and time.
In order to solve the above technical problems, propose that a kind of camera lens of testing run burnt method and system.
The test camera lens, which run burnt method, to be included：
S101, sets environment control unit, so that the environment control unit provides default test environment；
S102, controls video camera to identification resolution chart shooting image, to obtain multiple test images every preset time；
S103, determines the definition values of multiple test images；
S104, according to the definition values of multiple test images, judges whether the camera lens of the video camera runs Jiao.
Further, after step s 104, further include：
The test environment setting of the environment control unit, and return to step S102 are adjusted, so as in different test wrappers
Border is tested.
Further, the step S103 includes：
In the predeterminated position of the test image, at least one wedge crawl frame is set；
Determine definition values of the every test image at wedge crawl frame.
Further, the step S104 includes：
According to shooting time, the definition values of previous image are subtracted using the definition values of latter image, to obtain
The ring of definition values compares data；
According to the ring than data, judge whether the camera lens of the video camera runs Jiao.
Further, after step s 104, further include：
Test result is sent to default address.
The test camera lens, which run burnt system, to be included：
Test environment setting module, for being set to environment control unit, so that the environment control unit provides
Default test environment；
Image taking module, for controlling video camera to identification resolution chart shooting image every preset time, to obtain
Multiple test images；
Clarity determining module, for determining the definition values of multiple test images；
Judgment module, for the definition values according to multiple test images, judge the video camera camera lens whether
Run burnt.
Further, further include：
Test environment adjusts module, and the test environment for adjusting the environment control unit is set, and returns to image bat
Module is taken the photograph, to be tested in different test environments.
Further, the clarity determining module includes：
Submodule is set, for setting at least one wedge crawl frame in the predeterminated position of the test image；
Clarity determination sub-module, determines definition values of the every test image at wedge crawl frame.
Further, the judgment module includes：
Ring is than submodule, and for according to shooting time, previous image is subtracted using the definition values of latter image
Definition values, compare data to obtain the ring of definition values；
Judging submodule, for, than data, judging whether the camera lens of the video camera runs Jiao according to the ring.
Further, further include：
Test result sending module, for sending test result to default address.
In the present invention, during long-term burn-in test, the change of the environment such as temperature, the humidity of burn-in test is automatically controlled
Amount, is automatically performed picture analyzing, draws clarity, judges that burnt situation is run in camera lens aging.Relative to the prior art, the present invention provides
Method manpower can be transferred out from long-term burn-in test, save human cost and time.In addition, use test dress
Put identification camera lens and run burnt situation, it is as a result also more objective.
Due to prolonged automatic test, test system provided by the invention can automatically send test result to survey
Examination person.
Brief description of the drawings
Fig. 1 is the flow chart that a kind of test camera lens that the embodiment of the present invention one provides run burnt method；
Fig. 2 is a kind of flow chart tested camera lens and run burnt method provided by Embodiment 2 of the present invention；
Fig. 3 is the flow chart that a kind of test camera lens that the embodiment of the present invention three provides run burnt method；
Fig. 4 is the structure diagram that a kind of test camera lens that the embodiment of the present invention four provides run burnt system.
Embodiment
It is the specific embodiment of the present invention and with reference to attached drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
It is also understood that specific embodiment described herein is used only for understanding the present invention, it is not used to limit this hair
It is bright.
In the present invention, including test device, video camera and environment control unit to be measured.The test device can be right
Video camera and environment control unit are controlled.The environment control unit seals for environmental test chamber or controllable test environment
Body.
When being tested, in environment control unit, the test device can fill environmental Kuznets Curves for the position for video camera
Put and be controlled, so that the environment control unit provides default test environment.The environment control unit can provide room temperature,
The test environment such as high temperature, low temperature, hot and humid.
The test device can control the video camera to be shot, and identification resolution chart is carried out by the video camera
Shooting.The test device obtains the test image of video camera shooting, the test image is handled, to judge video camera
Whether camera lens runs Jiao.
Race Jiao of the camera lens includes the corner blooming of test image.
Test camera lens provided by the invention run burnt system and are located at the test device.
Embodiment one
The present embodiment provides a kind of camera lens of testing to run burnt method, its flow chart is as shown in Figure 1, details are as follows：
Step S101, sets environment control unit, so that the environment control unit provides default test wrapper
Border.
Environment control unit is set by test device, the test device is established with the environment control unit
Communication connection, and environment control unit is set by the connection.
The environment control unit is environmental test chamber or controllable test environment seal.The environment control unit can carry
For the test environment such as room temperature, high temperature, low temperature, hot and humid.
In the present invention, position for video camera to be measured is in the environment control unit.Institute is simulated by environment control unit
State the use environment of video camera.
Step S102, controls video camera to identification resolution chart shooting image, to obtain multiple tests every preset time
Image.
The test device controls the video camera to identification resolution chart shooting image, and obtains and clap from the video camera
The image taken the photograph.
The identification resolution chart can be ISO12233 reflectance charts, in addition, other surveys can also be used in the present invention
Examination card.
It should be noted that the video camera remains stationary as position in shooting image, multiple captured images are same
One picture.
The test device can control the candid photograph button at the IE interfaces for calling the video camera, or automation equipment is controllable
System calls the candid photograph button for NVR/DVR, CMS monitor supervision platform for having connected tested video camera, so that the video camera is to clarity
Test card shooting image.
Step S103, determines the definition values of multiple test images.
It should be noted that in the present embodiment, tv line can be used to represent for definition values, to weigh the test image
Clarity.In addition, other can represent that the value of clarity can also be used for the present invention.
Further, definition values can be calculated respectively to the different zones of test image.
In addition, can be by calling test software to analyze picture, to obtain definition values, the test software can be with
For imatest, ISeetes, HYRES.
Step S104, according to the definition values of multiple test images, judges whether the camera lens of the video camera runs Jiao.
Specifically, the definition values and the test chart of (n-1)th shooting for the test image that video camera is shot in n-th are calculated
The difference of the definition values of picture, wherein, n is the quantity of the image of shooting.Whether the video camera can determine whether according to the difference
Run burnt.
Further, a threshold value is set, when the absolute value of the difference of the clarity exceedes threshold value, can determine that described
The camera lens of video camera runs burnt.
According to the change of the difference, it can determine whether that camera lens run burnt trend.
Further, can be by using the change of clarity difference described in curve graph expression.The curve map is by by number
According to importing in Excel, Excel is called to be drawn.
It should be noted that before testing, it is also necessary to which the test device and the video camera are set accordingly
And adjustment.For example, the camera watch region of identification resolution chart is corrected, the store path of test image.
Camera lens are realized by the above process and run burnt automatic test.It can be applied to prolonged burn-in test
In, to save human cost.In addition, burnt situation is run using test device identification camera lens, it is as a result also more objective.
Embodiment two
The present embodiment provides a kind of camera lens of testing to run burnt method, its flow chart is as shown in Fig. 2, details are as follows：
Step S201, sets environment control unit, so that the environment control unit provides default test wrapper
Border.
Step S202, controls video camera to identification resolution chart shooting image, to obtain multiple tests every preset time
Image.
Step S203, determines the definition values of multiple test images.
Specifically, at least one wedge crawl frame is set in the predeterminated position of the test image；And determine every survey
Attempt as the definition values at wedge crawl frame.
Since the picture area of every test image is identical, so the position of wedge crawl frame is in every test chart
Position as in is also identical.
Before testing, the position that frame can be captured to the wedge is configured.
The wedge crawl frame may be provided at the corner and centre position of test image.To each wedge shape in test image
Figure crawl frame region calculates definition values.
Further, to horizontal resolution, the resolution ratio line number analysis at vertical resolution and four angles, draws resolution line
Number.Here definition values are the line number of clarity.
Step S204, according to the definition values of multiple test images, judges whether the camera lens of the video camera runs Jiao.
Step S201 to step S204 is referring to embodiment one.
Step S205, adjusts the test environment setting of the environment control unit, and return to step S202, so as in difference
Test environment tested.
Test device changes the setting of the test environment of the environment control unit, and return to step S202, so as to not
Same test environment is tested.
In the present embodiment, by varying the setting of environment control unit, realize to camera lens in various environment bars
Burnt test is run in aging under part.
Embodiment three
The present embodiment provides a kind of camera lens of testing to run burnt method, its flow chart is as shown in figure 3, details are as follows：
Step S301, sets environment control unit, so that the environment control unit provides default test wrapper
Border.
Step S302, controls video camera to identification resolution chart shooting image, to obtain multiple tests every preset time
Image.
Step S303, determines the definition values of multiple test images.
Step S301 to step S303 is referring to embodiment one.
Step S304, according to shooting time, the clarity of previous image is subtracted using the definition values of latter image
Value, compares data to obtain the ring of definition values.
Multiple described test images are ranked up by shooting time, and according to the sequence by the clear of latter image
Angle value subtracts the definition values of previous image, compares data to obtain the ring of definition values.
Specifically, the definition values and the test chart of (n-1)th shooting for the test image that video camera is shot in n-th are calculated
The difference of the definition values of picture, wherein, n is the quantity of the image of shooting.Whether the video camera can determine whether according to the difference
Run burnt.
Further, it is also possible to calculate absolute value of the ring than data, and it is depicted as curve map.
Step S305, according to the ring than data, judges whether the camera lens of the video camera runs Jiao.
When the absolute value of the difference exceedes default threshold value, the camera lens of the video camera is judged to running burnt.
In addition, when including multiple wedges crawl frame in test image, every test image includes multiple definition values,
To represent the definition values in test image in different zones.Multiple definition values of every test image can be carried out respectively pair
Than analysis, determine whether the camera lens of the video camera runs Jiao.
Further, test result is sent to default address, so that tester understands test result.
Example IV
The present embodiment provides a kind of camera lens of testing to run burnt system, its structure diagram is as shown in figure 4, be described in detail such as
Under：
The test camera lens, which run burnt system, to be included：
Test environment setting module 410, for being set to environment control unit, so that the environment control unit carries
For default test environment；
Image taking module 420, for controlling video camera to identification resolution chart shooting image every preset time, to obtain
Obtain multiple test images；
Clarity determining module 430, for determining the definition values of multiple test images；
Judgment module 440, for the definition values according to multiple test images, judging the camera lens of the video camera is
It is no to run Jiao.
Further, further include：
Test environment adjusts module, and the test environment for adjusting the environment control unit is set, and returns to image bat
Module is taken the photograph, to be tested in different test environments.
Further, the clarity determining module 430 includes：
Submodule is set, for setting at least one wedge crawl frame in the predeterminated position of the test image；
Clarity determination sub-module, determines definition values of the every test image at wedge crawl frame.
Further, the judgment module 440 includes：
Ring is than submodule, and for according to shooting time, previous image is subtracted using the definition values of latter image
Definition values, compare data to obtain the ring of definition values；
Judging submodule, for, than data, judging whether the camera lens of the video camera runs Jiao according to the ring.
Further, further include：
Test result sending module, for sending test result to default address.
System provided in this embodiment is applied to the method that is provided into embodiment three of embodiment one, relevant content referring to
Foregoing embodiment one is to embodiment three.
It should be appreciated that above-mentioned step does not have stringent execution sequence, it is all to be contemplated that and do not influence the reality of function
Existing change all should be within the scope of the present invention.
In embodiment provided herein, it should be appreciated that described method and system is all schematical, in reality
By adjusting can difference in the implementation process of border.
In addition, the specific name of each functional unit or module is also only to facilitate mutually differentiation, is not used to the present invention
Protection domain.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of camera lens of testing run burnt method, it is characterised in that including step：
S101, sets environment control unit, so that the environment control unit provides default test environment；
S102, controls video camera to identification resolution chart shooting image, to obtain multiple test images every preset time；
S103, determines the definition values of multiple test images；
S104, according to the definition values of multiple test images, judges whether the camera lens of the video camera runs Jiao.
2. test camera lens according to claim 1 run burnt method, it is characterised in that after step s 104,
Further include：
Adjust the test environment setting of the environment control unit, and return to step S102, so as to different test environments into
Row test.
3. test camera lens according to claim 2 run burnt method, it is characterised in that the step S103 bags
Include：
In the predeterminated position of the test image, at least one wedge crawl frame is set；
Determine definition values of the every test image at wedge crawl frame.
4. testing camera lens according to claim 1-3 any one of them runs burnt method, it is characterised in that the step
S104 includes：
According to shooting time, the definition values of previous image are subtracted using the definition values of latter image, it is clear to obtain
The ring of angle value compares data；
According to the ring than data, judge whether the camera lens of the video camera runs Jiao.
5. test camera lens according to claim 4 run burnt method, it is characterised in that after step s 104,
Further include：
Test result is sent to default address.
6. a kind of camera lens of testing run burnt system, it is characterised in that including：
Test environment setting module, for being set to environment control unit, presets so that the environment control unit provides
Test environment；
Image taking module, for controlling video camera to identification resolution chart shooting image every preset time, to obtain multiple
Test image；
Clarity determining module, for determining the definition values of multiple test images；
Judgment module, for the definition values according to multiple test images, judges whether the camera lens of the video camera runs Jiao.
7. test camera lens according to claim 6 run burnt system, it is characterised in that further include：
Test environment adjusts module, and the test environment for adjusting the environment control unit is set, and returns to image taking mould
Block, to be tested in different test environments.
8. test camera lens according to claim 7 run burnt system, it is characterised in that the clarity determines mould
Block includes：
Submodule is set, for setting at least one wedge crawl frame in the predeterminated position of the test image；
Clarity determination sub-module, determines definition values of the every test image at wedge crawl frame.
9. testing camera lens according to claim 6-8 any one of them runs burnt system, it is characterised in that the judgement
Module includes：
Ring is than submodule, and for according to shooting time, the clear of previous image is subtracted using the definition values of latter image
Angle value, compares data to obtain the ring of definition values；
Judging submodule, for, than data, judging whether the camera lens of the video camera runs Jiao according to the ring.
10. test camera lens according to claim 9 run burnt system, it is characterised in that further include：
Test result sending module, for sending test result to default address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338869.7A CN107911694A (en) | 2017-12-14 | 2017-12-14 | A kind of camera lens of testing run burnt method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338869.7A CN107911694A (en) | 2017-12-14 | 2017-12-14 | A kind of camera lens of testing run burnt method and system |
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| Publication Number | Publication Date |
|---|---|
| CN107911694A true CN107911694A (en) | 2018-04-13 |
Family
ID=61868899
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|---|---|---|---|
| CN201711338869.7A Withdrawn CN107911694A (en) | 2017-12-14 | 2017-12-14 | A kind of camera lens of testing run burnt method and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307808A (en) * | 2020-04-10 | 2020-06-19 | 东莞市宇瞳光学科技股份有限公司 | Method for detecting volatility of lubricating oil in lens |
| CN113834635A (en) * | 2020-06-24 | 2021-12-24 | 浙江宇视科技有限公司 | Virtual focus testing method, device and equipment for image acquisition and storage medium |
| CN115567700A (en) * | 2022-02-22 | 2023-01-03 | 荣耀终端有限公司 | Focusing test method and system of shooting equipment |
| CN117714664A (en) * | 2023-06-20 | 2024-03-15 | 荣耀终端有限公司 | Focusing stability testing method, system, electronic equipment and storage medium |
-
2017
- 2017-12-14 CN CN201711338869.7A patent/CN107911694A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307808A (en) * | 2020-04-10 | 2020-06-19 | 东莞市宇瞳光学科技股份有限公司 | Method for detecting volatility of lubricating oil in lens |
| CN113834635A (en) * | 2020-06-24 | 2021-12-24 | 浙江宇视科技有限公司 | Virtual focus testing method, device and equipment for image acquisition and storage medium |
| CN115567700A (en) * | 2022-02-22 | 2023-01-03 | 荣耀终端有限公司 | Focusing test method and system of shooting equipment |
| CN117714664A (en) * | 2023-06-20 | 2024-03-15 | 荣耀终端有限公司 | Focusing stability testing method, system, electronic equipment and storage medium |
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