CN104965387A - Exposure time, frame rate and smear test device and test method - Google Patents
Exposure time, frame rate and smear test device and test method Download PDFInfo
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- CN104965387A CN104965387A CN201510418249.9A CN201510418249A CN104965387A CN 104965387 A CN104965387 A CN 104965387A CN 201510418249 A CN201510418249 A CN 201510418249A CN 104965387 A CN104965387 A CN 104965387A
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Abstract
The invention relates to an exposure time, frame rate and smear test device and a test method. The test device and the method use a brightness adjusting mechanism to adjust brightness of a target plate. A rotation power component drives the target plate to rotate uniformly as a preset angular velocity. A tested image acquisition system carries out photographing and recording on the target plate. The target plate is provided with a distinguished pattern. Through a pattern angle and position changes, a single frame rotation angle and the preset angular velocity of the known target plate are acquired. And then, exposure time of the image acquisition system is calculated. A rotation angle between two adjacent frame corresponding points in a video and the preset angular velocity are used to calculate a frame rate of the image acquisition system. Deflection of a pattern in a photograph is used to calculate a length of a smear generated by the image acquisition system. By using the test device and the method, a defect that the exposure time of the tested image acquisition system is difficult to adjust is overcome; in a highlight environment, the test can still be performed.
Description
Technical field
The present invention relates to a kind of time shutter, frame per second and smear proving installation and method of testing thereof, towards any image capturing system.
Background technology
The length of time shutter has direct impact to exposure, and for ensureing the correct of exposure, the time shutter needs accurately to control.The method of generally testing the time shutter of image capturing system is the LED group that shooting is flashed fast successively, according to photographing the LED number or its time shutter of length interpretation that light in photo, but the time shutter that there is tested image capturing system in this kind of method of testing more difficult adjustment, the problem such as more difficult mensuration in highlighted environment.
Summary of the invention
For overcoming above-mentioned defect, namely object of the present invention is to provide a kind of time shutter, frame per second and smear proving installation and method of testing thereof, this proving installation and method overcome the defect of the time shutter more difficult adjustment of tested image capturing system, still can measure in highlighted environment.
The object of the invention is to be achieved through the following technical solutions:
A kind of time shutter of the present invention, frame per second and smear proving installation, this proving installation includes:
Target, described target is provided with distinguishable pattern;
Rotary power part, described rotary power part at the uniform velocity rotates for driving target;
Brightness regulation mechanism, described brightness regulation mechanism is for regulating target brightness.
Further, described brightness regulation organization establishes is inner at target, and described target is semi-transparent body of light; Or described brightness regulation organization establishes is outside at target, the surface of described target is light reflection face.
Further, described brightness regulation mechanism is lamp group.
Further, described rotary power part is motor, and described target is provided with rotating shaft, and described motor is connected with rotating shaft power.
Further, described target is round.
As a method of testing for above-mentioned time shutter, frame per second and smear proving installation, comprise the following steps:
The brightness of brightness regulation mechanism to target is used to adjust;
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, is recorded a video, and by the single frames anglec of rotation of the video acquisition target after the photo after taking pictures, video recording, then calculates the time shutter of this image capturing system; By the anglec of rotation between two frame corresponding point adjacent in video and default angular velocity, calculate the frame per second of this image capturing system; The length of smear is produced by this image capturing system of Deformation calculation of pattern in photo.
Further, described frame per second equals the inverse of the anglec of rotation between adjacent two frame corresponding point and the ratio of the angular velocity preset.
Further, the described time shutter equals the ratio of the single frames anglec of rotation and default angular velocity.
A kind of time shutter provided by the invention, frame per second and smear proving installation and method, the brightness of brightness regulation mechanism to target is used to adjust, target is driven at the uniform velocity to rotate with the angular velocity preset by rotary power part, tested image capturing system is taken pictures to target, is recorded a video, target is provided with distinguishable pattern, by the angle of pattern, the single frames anglec of rotation of change in location acquisition target, and the angular velocity that known target is preset, then calculate the time shutter of this image capturing system; By the anglec of rotation between two frame corresponding point adjacent in video and default angular velocity, calculate the frame per second of this image capturing system; Produced the length of smear by the Deformation calculation image capturing system of pattern in photo, this proving installation and method overcome the defect of the time shutter more difficult adjustment of tested image capturing system, still can measure in highlighted environment.
Accompanying drawing explanation
For ease of illustrating, the present invention is described in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the structural representation of the present invention's a kind of time shutter, frame per second and smear proving installation;
Wherein Reference numeral is: 1, target; 2, pattern; 3, rotating shaft; 4, brightness regulation mechanism.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1, a kind of time shutter of the present invention, frame per second and smear proving installation, this proving installation includes:
Target 1, this target 1 is provided with distinguishable pattern 2, namely this target 1 is a visual plate, distinguishable pattern 2 angle, change in location on it is measured after at the uniform velocity rotating, this pattern 2 also can be other carriers of any other distinguishable angle, change in location, as mark, raised points, colored block etc., this target 1 is preferably round;
Rotary power part (not shown), this rotary power part at the uniform velocity rotates for driving target 1, and this rotary power part is preferably motor, and this target 1 is provided with rotating shaft 3, and this motor is connected with rotating shaft 3 power and drives target 1 at the uniform velocity to rotate;
Brightness regulation mechanism 4, this brightness regulation mechanism 4 is for regulating target 1 brightness; Concrete, this brightness regulation mechanism 4 can select lamp group; It is inner that this brightness regulation mechanism 4 is arranged on target 1, and this target 1 is semi-transparent body of light; Or this brightness regulation mechanism 4 is arranged on target 1 outside, the surface of this target 1 is light reflection face, and the light that this target 1 is launched by reflecting brightness governor motion 4 carries out brightness regulation, as shown in Figure 1.
As a method of testing for above-mentioned time shutter, frame per second and smear proving installation, comprise the following steps:
Use the brightness of brightness regulation mechanism 4 pairs of targets 1 to adjust, make it obtain a suitable mensuration lightness environment;
Rotary power part drives target 1 at the uniform velocity to rotate;
Tested image capturing system is taken pictures to target 1, is recorded a video, this image capturing system can be any image capturing system, target 1 is provided with distinguishable pattern 2, by the angle of pattern 2, the single frames anglec of rotation of change in location acquisition target 1, and the angular velocity that known target is preset, then calculate the time shutter of this image capturing system, namely the time shutter equals the ratio of the single frames anglec of rotation and default angular velocity; By the anglec of rotation between two frame corresponding point adjacent in video, for the deviation angle sum of the single frames anglec of rotation and single frames terminal and next frame starting point, calculate the frame per second of this image capturing system, namely this frame per second equals the inverse of the anglec of rotation between adjacent two frame corresponding point and the ratio of the angular velocity preset; The length of smear is produced by this image capturing system of Deformation calculation of pattern in photo, namely the length of smear be the pattern deformation amount produced under the specific frame per second of image capturing system, pattern specific angle speed, be survey time shutter and frame per second conversely, just coming is then the smear surveying video; This proving installation and method overcome the defect of the time shutter more difficult adjustment of tested image capturing system, still can measure in highlighted environment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. time shutter, frame per second and a smear proving installation, is characterized in that, this proving installation includes:
Target, described target is provided with distinguishable pattern;
Rotary power part, described rotary power part at the uniform velocity rotates for driving target;
Brightness regulation mechanism, described brightness regulation mechanism is for regulating target brightness.
2. a kind of time shutter according to claim 1, frame per second and smear proving installation, it is characterized in that, described brightness regulation organization establishes is inner at target, and described target is semi-transparent body of light; Or described brightness regulation organization establishes is outside at target, the surface of described target is light reflection face.
3. a kind of time shutter according to claim 2, frame per second and smear proving installation, it is characterized in that, described brightness regulation mechanism is lamp group.
4. a kind of time shutter according to any one of claim 1-3, frame per second and smear proving installation, is characterized in that, described rotary power part is motor, and described target is provided with rotating shaft, and described motor is connected with rotating shaft power.
5. a kind of time shutter according to claim 4, frame per second and smear proving installation, it is characterized in that, described target is round.
6. a method of testing for the time shutter as described in any one of claim 1-5, frame per second and smear proving installation, is characterized in that, comprise the following steps:
The brightness of brightness regulation mechanism to target is used to adjust;
Rotary power part drives target at the uniform velocity to rotate with the angular velocity preset;
Tested image capturing system is taken pictures to the target that at the uniform velocity rotates of angular velocity preset, is recorded a video, and by the single frames anglec of rotation of the photo after taking pictures, video acquisition target after video recording, then calculates the time shutter of this image capturing system; By the anglec of rotation between two frame corresponding point adjacent in video and default angular velocity, calculate the frame per second of this image capturing system; The length of smear is produced by this image capturing system of Deformation calculation of pattern in photo.
7. the method for testing of time shutter according to claim 6, frame per second and smear proving installation, is characterized in that, described frame per second equals the inverse of the anglec of rotation between adjacent two frame corresponding point and the ratio of the angular velocity preset.
8. the method for testing of time shutter according to claim 6, frame per second and smear proving installation, is characterized in that, the described time shutter equals the ratio of the single frames anglec of rotation and the angular velocity preset.
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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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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107690067A (en) * | 2016-08-05 | 2018-02-13 | 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 |
| CN107798675A (en) * | 2017-09-29 | 2018-03-13 | 歌尔股份有限公司 | The detection method and device of smear in display image |
| CN107809634A (en) * | 2017-11-07 | 2018-03-16 | 歌尔股份有限公司 | Smear management-control method and device |
| CN108573664A (en) * | 2018-04-02 | 2018-09-25 | 广州视源电子科技股份有限公司 | Quantitative tailing test method, device, storage medium and system |
| CN108668127A (en) * | 2018-08-01 | 2018-10-16 | 昆山丘钛微电子科技有限公司 | Imaging device time for exposure test device |
| CN110361774A (en) * | 2019-07-18 | 2019-10-22 | 江苏康众数字医疗科技股份有限公司 | Test the device and test method of x-ray detector time response |
| CN110446027A (en) * | 2019-08-08 | 2019-11-12 | 深圳市圆周率软件科技有限责任公司 | A method of the test picture pick-up device time for exposure |
| CN110505368A (en) * | 2019-08-29 | 2019-11-26 | 深圳市圆周率软件科技有限责任公司 | A kind of more camera lens time for exposure synchronization systems of test panorama camera |
| CN110505473A (en) * | 2019-08-08 | 2019-11-26 | 深圳市圆周率软件科技有限责任公司 | A kind of system for testing the picture pick-up device time for exposure |
| CN110515264A (en) * | 2019-08-29 | 2019-11-29 | 深圳市圆周率软件科技有限责任公司 | A kind of more camera lens time for exposure systems of test panorama camera |
| CN110581989A (en) * | 2018-06-07 | 2019-12-17 | 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 |
| CN114125226A (en) * | 2021-11-18 | 2022-03-01 | 维沃移动通信有限公司 | Image shooting method and device, electronic equipment and readable storage medium |
| 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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| 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 |
| CN107690067A (en) * | 2016-08-05 | 2018-02-13 | 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 |
| CN107798675A (en) * | 2017-09-29 | 2018-03-13 | 歌尔股份有限公司 | The detection method and device of smear in display image |
| CN107809634A (en) * | 2017-11-07 | 2018-03-16 | 歌尔股份有限公司 | Smear management-control method and device |
| CN107809634B (en) * | 2017-11-07 | 2019-04-23 | 歌尔股份有限公司 | Smear management-control method and device |
| CN108573664A (en) * | 2018-04-02 | 2018-09-25 | 广州视源电子科技股份有限公司 | Quantitative tailing test method, device, storage medium and system |
| 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 |
| CN110581989A (en) * | 2018-06-07 | 2019-12-17 | 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 |
| CN108668127A (en) * | 2018-08-01 | 2018-10-16 | 昆山丘钛微电子科技有限公司 | Imaging device time for exposure test device |
| 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 |
| CN110361774A (en) * | 2019-07-18 | 2019-10-22 | 江苏康众数字医疗科技股份有限公司 | Test the device and test method of x-ray detector time response |
| 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 |
| 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 |
| CN110505473A (en) * | 2019-08-08 | 2019-11-26 | 深圳市圆周率软件科技有限责任公司 | A kind of system for testing the picture pick-up device time for exposure |
| 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 |
| CN110446027A (en) * | 2019-08-08 | 2019-11-12 | 深圳市圆周率软件科技有限责任公司 | A method of the test picture pick-up device time for exposure |
| CN110515264A (en) * | 2019-08-29 | 2019-11-29 | 深圳市圆周率软件科技有限责任公司 | A kind of more camera lens time for exposure systems of test panorama camera |
| 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 |
| CN110505368A (en) * | 2019-08-29 | 2019-11-26 | 深圳市圆周率软件科技有限责任公司 | A kind of more camera lens time for exposure synchronization systems of test panorama camera |
| 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 |
| CN114125226A (en) * | 2021-11-18 | 2022-03-01 | 维沃移动通信有限公司 | Image shooting method and device, electronic equipment and readable storage medium |
| 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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