CN104965387B - A kind of time for exposure, frame per second and smear test device and its method of testing - Google Patents
A kind of time for exposure, frame per second and smear test device and its method of testing Download PDFInfo
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- CN104965387B CN104965387B CN201510418249.9A CN201510418249A CN104965387B CN 104965387 B CN104965387 B CN 104965387B CN 201510418249 A CN201510418249 A CN 201510418249A CN 104965387 B CN104965387 B CN 104965387B
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Abstract
The present invention relates to a kind of time for exposure, frame per second and smear test device and method of testing.The test device and method are adjusted using brightness of the brightness regulation mechanism to target, target is driven at the uniform velocity to be rotated with default angular speed by rotary power part, tested image capturing system is taken pictures to target, recorded a video, distinguishable pattern is provided with target, the single frames anglec of rotation of target is obtained by the angle of pattern, change in location, and the known default angular speed of target, then calculate time for exposure of the image capturing system；By the anglec of rotation between adjacent two frames corresponding points in video and default angular speed, the frame per second of the image capturing system is calculated；Produce the length of smear by the Deformation calculation of pattern in the photo image capturing system, the defects of test device and method overcome the more difficult adjustment of the time for exposure of tested image capturing system, can be still measured in highlighted environment.
Description
Technical field
The present invention relates to a kind of time for exposure, frame per second and smear test device and its method of testing, adopted towards any image
Collecting system.
Background technology
The length of time for exposure has direct influence on light exposure, and to ensure the correct of light exposure, the time for exposure needs accurate
Control.The method typically tested the time for exposure of image capturing system is to shoot the quick LED light group flashed successively, root
The LED number lighted according to photographing in photo or its time for exposure of length interpretation, but there is by mapping in this kind of method of testing
As the more difficult adjustment of the time for exposure of acquisition system, highlight the problems such as more difficult measure in environment.
The content of the invention
To overcome drawbacks described above, the purpose of the present invention is to provide a kind of time for exposure, frame per second and smear test device
And its method of testing, the defects of test device and method overcome the more difficult adjustment of the time for exposure of tested image capturing system,
It can be still measured in highlighted environment.
The purpose of the present invention is achieved through the following technical solutions：
A kind of time for exposure, frame per second and the smear test device of the present invention, the test device include：
Target, distinguishable pattern is provided with the target；
Rotary power part, the rotary power part are used to drive target at the uniform velocity to rotate；
Brightness regulation mechanism, the brightness regulation mechanism are used to adjust target brightness.
Further, the brightness regulation mechanism is arranged on inside target, and the target is semi-transparent body of light；Or the brightness is adjusted
Section mechanism is arranged on outside target, and the surface of the target is light reflecting surface.
Further, the brightness regulation mechanism is lamp group.
Further, the rotary power part is motor, and rotating shaft is provided with the target, and the motor connects with rotating shaft power
Connect.
Further, the target is round.
A kind of method of testing of such as above-mentioned time for exposure, frame per second and smear test device, comprises the following steps：
It is adjusted using brightness of the brightness regulation mechanism to target；
Rotary power part drives target at the uniform velocity to rotate；
Tested image capturing system is taken pictures to the target at the uniform velocity rotated with pre-set velocity, recorded a video, by the photograph after taking pictures
The single frames anglec of rotation of video acquisition target after piece, video recording, then calculate the time for exposure of the image capturing system；By recording
As the anglec of rotation between adjacent two frames corresponding points in video and default angular speed, the frame of the image capturing system is calculated
Rate；By the length of the Deformation calculation of pattern in photo image capturing system generation smear.
Further, the frame per second is equal to the ratio of the anglec of rotation and default angular speed between adjacent two frames corresponding points
It is reciprocal.
Further, the time for exposure is equal to the single frames anglec of rotation and the ratio of default angular speed.
A kind of time for exposure provided by the invention, frame per second and smear test device and method, use brightness regulation mechanism pair
The brightness of target is adjusted, and is driven target at the uniform velocity to be rotated with default angular speed by rotary power part, is tested IMAQ system
System is taken pictures to target, recorded a video, and distinguishable pattern is provided with target, and mark is obtained by the angle of pattern, change in location
The single frames anglec of rotation of plate, and the default angular speed of known target, then calculate the time for exposure of the image capturing system；By
The anglec of rotation between adjacent two frames corresponding points and default angular speed in video, calculate the frame of the image capturing system
Rate；The length of smear is produced by the Deformation calculation image capturing system of pattern in photo, the test device and method overcome by
The defects of time for exposure of altimetric image acquisition system more difficult adjustment, it can be still measured in highlighted environment.
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is the structural representation of a kind of present invention time for exposure, frame per second and smear test device；
Wherein reference is：1st, target；2nd, pattern；3rd, rotating shaft；4th, brightness regulation mechanism.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1, a kind of time for exposure of the invention, frame per second and smear test device are refer to, the test device includes：
Target 1, distinguishable pattern 2 is provided with the target 1, the target 1 is a visual plate, is surveyed after at the uniform velocity rotating
The fixed angle of pattern 2 distinguishable thereon, change in location, the pattern 2 can also be any other distinguishable angle, change in location its
His carrier, such as mark, raised points, colored block, the 1 preferably circular body of target；
Rotary power part (not shown), the rotary power part are used to drive target 1 at the uniform velocity to rotate, and the rotary power part is preferred
For motor, rotating shaft 3 is provided with the target 1, the motor drives target 1 at the uniform velocity to rotate with the power connector of rotating shaft 3；
Brightness regulation mechanism 4, the brightness regulation mechanism 4 are used to adjust the brightness of target 1；Specifically, the brightness regulation mechanism 4
Lamp group can be selected；The brightness regulation mechanism 4 is arranged on inside target 1, and the target 1 is semi-transparent body of light；Or the brightness regulation mechanism 4
It is arranged on outside target 1, the surface of the target 1 is light reflecting surface, and the target 1 is launched by reflecting brightness governor motion 4
Light carries out brightness regulation, as shown in Figure 1.
A kind of method of testing of such as above-mentioned time for exposure, frame per second and smear test device, comprises the following steps：
It is adjusted using brightness of the brightness regulation mechanism 4 to target 1, it is obtained a suitable measure brightness ring
Border；
Rotary power part drives target 1 at the uniform velocity to rotate；
Tested image capturing system is taken pictures to target 1, recorded a video, and the image capturing system can be that any image is adopted
Collecting system, distinguishable pattern 2 is provided with target 1, pass through the angle of pattern 2, change in location obtains the single frames of target 1 and rotated
Angle, and the default angular speed of known target, the time for exposure of the image capturing system is then calculated, i.e. the time for exposure is equal to
The single frames anglec of rotation and the ratio of default angular speed；By the anglec of rotation between adjacent two frames corresponding points in video, it is
The single frames anglec of rotation and the deviation angle sum of single frames terminal and next frame starting point, the frame per second of the image capturing system is calculated,
I.e. the frame per second is equal to the inverse of the ratio of the anglec of rotation and default angular speed between adjacent two frames corresponding points；By scheming in photo
The Deformation calculation of the case image capturing system produces the length of smear, and the length of smear is in image capturing system particular frame
Caused pattern deformation amount under the specific angular speed of rate, pattern, it is to survey time for exposure and frame per second in turn, just comes to be then to survey video
Smear；The test device and method overcome the defects of time for exposure of tested image capturing system more difficult adjustment, in high bright ring
It can be still measured in border.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (8)
1. a kind of time for exposure, frame per second and smear test device, it is characterised in that the test device includes：
Target, distinguishable pattern is provided with the target；
Rotary power part, the rotary power part are used to drive target at the uniform velocity to rotate；
Brightness regulation mechanism, the brightness regulation mechanism are used to adjust target brightness.
2. a kind of time for exposure according to claim 1, frame per second and smear test device, it is characterised in that the brightness
Governor motion is arranged on inside target, and the target is semi-transparent body of light；Or the brightness regulation mechanism is arranged on outside target, institute
The surface for stating target is light reflecting surface.
3. a kind of time for exposure according to claim 2, frame per second and smear test device, it is characterised in that the brightness
Governor motion is lamp group.
4. a kind of time for exposure, frame per second and smear test device according to claim any one of 1-3, it is characterised in that
The rotary power part is motor, and rotating shaft, the motor and rotating shaft power connector are provided with the target.
5. a kind of time for exposure according to claim 4, frame per second and smear test device, it is characterised in that the target
For round.
6. the method for testing of a kind of time for exposure as described in claim any one of 1-5, frame per second and smear test device, it is special
Sign is, comprises the following steps：
It is adjusted using brightness of the brightness regulation mechanism to target；
Rotary power part drives target at the uniform velocity to be rotated with default angular speed；
Tested image capturing system is taken pictures to the target at the uniform velocity rotated with default angular speed, recorded a video, by the photograph after taking pictures
The single frames anglec of rotation of video acquisition target after piece, video recording, then calculate the time for exposure of tested image capturing system；By
The anglec of rotation between adjacent two frames corresponding points and default angular speed, calculate tested image capturing system in video
Frame per second；The length of image capturing system generation smear is tested by the Deformation calculation of pattern in photo.
7. the method for testing of time for exposure according to claim 6, frame per second and smear test device, it is characterised in that institute
Frame per second is stated equal to the anglec of rotation between adjacent two frames corresponding points and the inverse of the ratio of default angular speed.
8. the method for testing of time for exposure according to claim 6, frame per second and smear test device, it is characterised in that institute
The time for exposure is stated equal to the single frames anglec of rotation and the ratio of default angular speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510418249.9A CN104965387B (en) | 2015-07-15 | 2015-07-15 | A kind of time for exposure, frame per second and smear test device and its method of testing |
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| CN201510418249.9A CN104965387B (en) | 2015-07-15 | 2015-07-15 | A kind of time for exposure, frame per second and smear test device and its method of testing |
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| CN104965387B true CN104965387B (en) | 2017-11-28 |
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| CN107677845A (en) * | 2016-08-01 | 2018-02-09 | 原相科技股份有限公司 | Speed-measuring method and speed measuring device |
| CN107690067B (en) * | 2016-08-05 | 2019-06-21 | 成都理想境界科技有限公司 | The detection method and device of head-mounted display apparatus frame per second |
| CN107798675B (en) * | 2017-09-29 | 2024-02-13 | 歌尔光学科技有限公司 | Method and device for detecting smear in display image |
| CN107809634B (en) * | 2017-11-07 | 2019-04-23 | 歌尔股份有限公司 | Smear management-control method and device |
| CN108573664B (en) * | 2018-04-02 | 2021-05-07 | 广州视源电子科技股份有限公司 | Quantitative tailing test method, device, storage medium and system |
| CN110581989B (en) * | 2018-06-07 | 2020-07-31 | 杭州海康威视数字技术股份有限公司 | Method, device, electronic device, medium and system for detecting rapid exposure time |
| CN108668127B (en) * | 2018-08-01 | 2019-09-27 | 昆山丘钛微电子科技有限公司 | Imaging device time for exposure test device |
| CN110361774B (en) * | 2019-07-18 | 2020-10-09 | 江苏康众数字医疗科技股份有限公司 | Device and method for testing time response of X-ray detector |
| CN110505473B (en) * | 2019-08-08 | 2024-01-19 | 圆周率科技(常州)有限公司 | System for testing exposure time of camera equipment |
| CN110446027B (en) * | 2019-08-08 | 2021-11-12 | 深圳市圆周率软件科技有限责任公司 | Method for testing exposure time of camera equipment |
| CN110505368B (en) * | 2019-08-29 | 2023-06-06 | 圆周率科技(常州)有限公司 | Multi-lens exposure time synchronization system for panoramic camera testing |
| CN110515264B (en) * | 2019-08-29 | 2021-09-10 | 深圳市圆周率软件科技有限责任公司 | System for testing multi-lens exposure time of panoramic camera |
| CN117030034A (en) * | 2023-06-30 | 2023-11-10 | 武汉高德智感科技有限公司 | Method and system for detecting smear time of thermal imager |
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