CN102003954A - Automatic-configuring system for digital photogrammetric optical parameters - Google Patents
Automatic-configuring system for digital photogrammetric optical parameters Download PDFInfo
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- CN102003954A CN102003954A CN 201010290348 CN201010290348A CN102003954A CN 102003954 A CN102003954 A CN 102003954A CN 201010290348 CN201010290348 CN 201010290348 CN 201010290348 A CN201010290348 A CN 201010290348A CN 102003954 A CN102003954 A CN 102003954A
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Abstract
The invention relates to an automatic-configuring system for digital photogrammetric optical parameters, which mainly comprises an ambient light sensor, a computer, a system controller, a light distribution floodlight and an image sensor, wherein the input ends of the ambient light sensor and the system controller which are arranged at a test area of the image sensor are connected with a data acquisition card of the computer through shielding signal wires, and two output ends of the system controller are respectively connected with the light distribution floodlight and the image sensor through signal wires. Light strong signals of the test area are directly sent to the computer through signal wires, the computer figures out the best light distribution parameters of the image sensor according to the light strong signals and sends a control instruction to the system controller, and the system controller controls the turning-on and off of the light distribution floodlight and regulates the light distribution parameters of the image sensor in real time according to the control instruction sent by the computer. The system can be used for effectively measuring high-speed moving objects and can ensure that the image effect measured by the image sensor is best.
Description
Technical field
The present invention relates to a kind of digital photogrammetry optical parametric automatic configuration system that is used to improve photosensitive effect, particularly a kind ofly be used for the outdoor optical parametric automatic configuration system that high-speed moving object is carried out digital photogrammetry.
Background technology
Measuring accuracy height, test speed are fast because the digital photogrammetry technology has, good environmental adaptability, many characteristics such as easy to use, so the digital photogrammetry technology has all obtained application very widely in current social human being's production and various fields in life.
The sharpness of the precision of digital photogrammetry and measurand image has direct relation, the exposure deficiency, the material particular of measurand is smudgy on the image of measuring, not only can have influence on photogrammetric precision, also can can't extract when serious and can not get needed test result because of measurement features; If exposure too strong (surpassing saturation exposure), cross the light picture and can in pixel, produce and put aside the supersaturation signal charge, at this moment, the supersaturation electric charge just can be diffused into the potential well of neighbor from the potential well process substrate of a pixel.Like this, the place that should not present certain brightness on the image of measurand presents brightness on the contrary, and promptly measurand is flooded by high light fully, and this phenomenon is called disperse.In case diffusing phenomenon produces, can not find the effective information of measurand in the image, also just can not output test result.This shows that the exposure of digital photogrammetry must be suitable.
The size of exposure is relevant with size, the optical parametrics such as length of time shutter of environment light intensity, aperture.For the measurement of open air at high-speed mobile target (as the vehicle of running at high speed), because the environment light intensity differs very greatly different, the light intensity of sunshine direct projection is up to 200000Lux, and the light intensity at pitch-dark night is less than 10Lux.For black night evening, because intensity of illumination is too low, even if aperture is transferred to maximum, the time shutter infinitely prolongs, and also can't obtain the high image of sharpness.Yet for the measurand of high-speed mobile, the time shutter must be enough short, otherwise image streaking (or the shadow of weighing, the reflection of amount of movement in test pattern of measurand in the period of promptly exposing) can bring great test error.For this reason, surround lighting need carry out artificial luminous intensity distribution more weak relatively overcast and rainy and night.
In sum, seek out the high definition digital photographs that satisfies certain measuring accuracy requirement, need be according to the variation of surround lighting, in time control luminous intensity distribution with the opening and closing of illuminating lamp, and the size of real-time regulated aperture and time shutter.
Whether open luminous intensity distribution with illuminating lamp and automatically regulate aperture and be: on imageing sensor, dispose a photoreceptor with the classic method of time shutter, before the image of taking measurand, utilize photoreceptor to measure the brightness (this measuring process approximately need 1 second time) of measurand in eyepiece earlier, determine whether in view of the above to start the luminous intensity distribution illuminating lamp, and regulate the aperture and the time shutter of imageing sensor automatically.The shortcoming of this method is: it only is suitable for the measurement to the slower moving target of static target and translational speed, need to surpass 1 second time approximately because also dispose optical parametrics such as (adjusting) imageing sensor aperture and time shutter in view of the above with the brightness of the domestic image of photosensitive sensor measurement order, it can't satisfy the needs that high-speed mobile target (as the vehicle of running at high speed) is measured.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of digital photogrammetry optical parametric automatic configuration system, to overcome the defective of prior art.The shortcoming of prior art is: before measurand is tested, the image of measurand should stop the time about about 1 second in the eyepiece of imageing sensor, so that the photoreceptor that is arranged on the imageing sensor can be measured the brightness of the domestic image of order, to determine whether to open luminous intensity distribution with illuminating lamp and regulate the aperture and the time shutter (aperture of imageing sensor and time shutter are referred to as the luminous intensity distribution parameter) of imageing sensor, the adjusting of imageing sensor aperture and time shutter needs 1 second time approximately.This shows that prior art will seek out good test result, measurand needs to stop about 2 seconds time at the test position that imageing sensor is set, and makes it to finish to the measurement of measurand brightness and to the adjusting of imageing sensor luminous intensity distribution parameter.Yet, photogrammetric to the high-speed mobile object, measurand can not be stopped for its measurement.Therefore, prior art only is suitable for the measurement to stationary object, and is not suitable for the measurement to moving object.
The technical scheme that the present invention solves its technical matters employing is: mainly by ambient light sensor, computing machine, system controller, luminous intensity distribution is formed with illuminating lamp and imageing sensor, wherein: be arranged on the ambient light sensor of imageing sensor test section and the input end of system controller and link to each other with the data collecting card of computing machine with shielded signal wire, two output terminals of system controller link to each other with illuminating lamp and imageing sensor with luminous intensity distribution with signal wire respectively, the light intensity signal of test section is directly passed to computing machine by signal wire, computing machine calculates the optimal light distribution parameter of imageing sensor according to light intensity signal, and send steering order to system controller, the steering order that system controller sends according to computing machine is controlled luminous intensity distribution opening with illuminating lamp in real time, close and regulate the luminous intensity distribution parameter of imageing sensor.
The present invention compared with prior art has following major advantage:
1. can effectively realize measurement to high-speed moving object:
Utilize ambient light sensor to monitor the variation of surround lighting in the test section in real time, computing machine calculates best luminous intensity distribution parameter in view of the above, and by controller the luminous intensity distribution parameter of imageing sensor is carried out real-time regulated.Because the adjusting of imageing sensor luminous intensity distribution parameter does not rely on the image in the imageing sensor eyepiece, measurand need not to set the test section at imageing sensor and stops, and therefore can effectively realize the measurement to high-speed moving object.Prior art can only be carried out the high definition measurement to the static object thing, and the present invention can realize that the object up to 200km/h is carried out high definition to be measured.
2. can guarantee image effect the best that imageing sensor records:
Based on the luminous intensity distribution parameters precision height that the meter of surround lighting in the imageing sensor setting test section is calculated, can guarantee image effect the best that imageing sensor records.
Description of drawings
Fig. 1 is the structural representation of digital photogrammetry optical parametric automatic configuration system.
Embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
The invention provides a kind of variation, and utilize ambient lighting intensive parameter control the luminous intensity distribution open and close of illuminating lamp and the organization plan of imageing sensor optical parametric (aperture and time shutter) configuration with the round-the-clock uninterrupted ambient light of ambient light sensor.Specifically provided digital photogrammetry optical parametric automatic configuration system, the structure of this system mainly is made up of with illuminating lamp and imageing sensor ambient light sensor, computing machine, system controller, luminous intensity distribution as shown in Figure 1.Be arranged on the ambient light sensor of imageing sensor test section and the input end of system controller and link to each other with the data collecting card of computing machine with shielded signal wire, 2 output terminals of system controller link to each other with illuminating lamp and imageing sensor with luminous intensity distribution with signal wire respectively.The light intensity signal of test section is directly passed to computing machine by signal wire, computing machine calculates the optimal light distribution parameter of imageing sensor according to light intensity signal, and send steering order to system controller, the steering order that system controller sends according to computing machine is controlled luminous intensity distribution in real time with the open and close of illuminating lamp and the luminous intensity distribution parameter of regulating imageing sensor.
Described ambient light sensor can be photoresistance, photodiode or phototriode.
Described computing machine can be industrial computer, common PC, notebook computer and single-chip microcomputer.
Described system controller is made up of illuminating lamp control and imageing sensor control two parts.Luminous intensity distribution adopts A.C. contactor with the control section of illuminating lamp; The control section of imageing sensor aperture adopts stepper motor, and pulsed Time Triggered device is adopted in the control of time shutter.
Described luminous intensity distribution can be incandescent lamp, iodine-tungsten lamp, metal halide lamp and electrodeless lamp with illuminating lamp, and the threshold value that luminous intensity distribution opens and closes with illuminating lamp is determined by the model of test request with selected imageing sensor.
Described imageing sensor can be ccd image sensor or cmos image sensor.
Digital photogrammetry optical parametric automatic configuration system provided by the invention, its principle of work is: ambient light sensor detects the intensity of illumination of test environment in real time, and it is passed to computing machine, computing machine at first compares ambient lighting intensity and setting value, if ambient lighting intensity is lower than the lower limit threshold value (as 100Lux) of setting, then system controller is sent and open the instruction of luminous intensity distribution with illuminating lamp, system controller is lighted the luminous intensity distribution illuminating lamp; If ambient lighting intensity is higher than the upper limit threshold value (as 500Lux) of setting, then system controller is sent and close the instruction of luminous intensity distribution with illuminating lamp, luminous intensity distribution extinguishes with illuminating lamp.Simultaneously, computing machine is according to the environmental light intensity information of ambient light sensor output, calculate best aperture and time shutter, and sending steering order to system controller, system controller is measured measurand according to best aperture and time shutter control chart image-position sensor that COMPUTER CALCULATION goes out.
Claims (6)
1. digital photogrammetry optical parametric automatic configuration system, it is characterized in that mainly by ambient light sensor, computing machine, system controller, luminous intensity distribution is formed with illuminating lamp and imageing sensor, wherein: be arranged on the ambient light sensor of imageing sensor test section and the input end of system controller and link to each other with the data collecting card of computing machine with shielded signal wire, two output terminals of system controller link to each other with illuminating lamp and imageing sensor with luminous intensity distribution with signal wire respectively, the light intensity signal of test section is directly passed to computing machine by signal wire, computing machine calculates the optimal light distribution parameter of imageing sensor according to light intensity signal, and send steering order to system controller, the steering order that system controller sends according to computing machine is controlled luminous intensity distribution opening with illuminating lamp in real time, close and regulate the luminous intensity distribution parameter of imageing sensor.
2. digital photogrammetry optical parametric automatic configuration system according to claim 1 is characterized in that described ambient light sensor adopts photoresistance, photodiode or phototriode.
3. digital photogrammetry optical parametric automatic configuration system according to claim 1 is characterized in that described computing machine adopts industrial computer, common PC, notebook computer or single-chip microcomputer.
4. digital photogrammetry optical parametric automatic configuration system according to claim 1 is characterized in that described system controller is controlled by illuminating lamp and imageing sensor control two parts are formed; Luminous intensity distribution adopts A.C. contactor with the control section of illuminating lamp; The control section of imageing sensor aperture adopts stepper motor, and pulsed Time Triggered device is adopted in the control of time shutter.
5. digital photogrammetry optical parametric automatic configuration system according to claim 1 is characterized in that described luminous intensity distribution adopts incandescent lamp, iodine-tungsten lamp, metal halide lamp or electrodeless lamp with illuminating lamp.
6. digital photogrammetry optical parametric automatic configuration system according to claim 1 is characterized in that described imageing sensor adopts ccd image sensor or cmos image sensor.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500950B (en) * | 2011-11-30 | 2015-09-21 | Omron Tateisi Electronics Co | Optical displacement sensor |
| CN105681626A (en) * | 2016-02-25 | 2016-06-15 | 广东欧珀移动通信有限公司 | Detection method, control method, detection device, control device and electronic device |
| CN109889731A (en) * | 2019-02-22 | 2019-06-14 | 生迪智慧科技有限公司 | The determination method, apparatus and storage medium of acquisition parameters |
| CN111464742A (en) * | 2020-04-09 | 2020-07-28 | 中山易美杰智能科技有限公司 | Imaging system and method capable of continuously photographing without causing motion blur |
| CN112379560A (en) * | 2020-11-03 | 2021-02-19 | 中山大学 | Diaphragm and diaphragm module |
| CN113347375A (en) * | 2021-06-01 | 2021-09-03 | 天津大学 | Pixel flicker suppression method of pulse image sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339989Y (en) * | 1998-09-15 | 1999-09-22 | 浙江大学 | Automatic monitoring instrument for moter vehicle speed and distance between two motor vehicles |
| CN1831892A (en) * | 2006-04-18 | 2006-09-13 | 北京铱星世纪数字应用开发有限责任公司 | Traffic monitoring method and electronic police system |
| CN201203419Y (en) * | 2007-12-26 | 2009-03-04 | 河海大学常州校区 | Single frame image detection device of city road crossing vehicle queue length |
| CN101807346A (en) * | 2009-02-16 | 2010-08-18 | 汉王科技股份有限公司 | Automatic license plate identification system at urban checkpoint |
-
2010
- 2010-09-25 CN CN 201010290348 patent/CN102003954B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339989Y (en) * | 1998-09-15 | 1999-09-22 | 浙江大学 | Automatic monitoring instrument for moter vehicle speed and distance between two motor vehicles |
| CN1831892A (en) * | 2006-04-18 | 2006-09-13 | 北京铱星世纪数字应用开发有限责任公司 | Traffic monitoring method and electronic police system |
| CN201203419Y (en) * | 2007-12-26 | 2009-03-04 | 河海大学常州校区 | Single frame image detection device of city road crossing vehicle queue length |
| CN101807346A (en) * | 2009-02-16 | 2010-08-18 | 汉王科技股份有限公司 | Automatic license plate identification system at urban checkpoint |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI500950B (en) * | 2011-11-30 | 2015-09-21 | Omron Tateisi Electronics Co | Optical displacement sensor |
| CN105681626A (en) * | 2016-02-25 | 2016-06-15 | 广东欧珀移动通信有限公司 | Detection method, control method, detection device, control device and electronic device |
| CN105681626B (en) * | 2016-02-25 | 2019-02-05 | Oppo广东移动通信有限公司 | Detection method, control method, detection device, control device and electronic device |
| CN109889731A (en) * | 2019-02-22 | 2019-06-14 | 生迪智慧科技有限公司 | The determination method, apparatus and storage medium of acquisition parameters |
| CN109889731B (en) * | 2019-02-22 | 2021-03-05 | 生迪智慧科技有限公司 | Shooting parameter determination method and device and storage medium |
| CN111464742A (en) * | 2020-04-09 | 2020-07-28 | 中山易美杰智能科技有限公司 | Imaging system and method capable of continuously photographing without causing motion blur |
| CN111464742B (en) * | 2020-04-09 | 2022-03-22 | 中山易美杰智能科技有限公司 | Imaging system and method capable of continuously photographing without causing motion blur |
| CN112379560A (en) * | 2020-11-03 | 2021-02-19 | 中山大学 | Diaphragm and diaphragm module |
| CN113347375A (en) * | 2021-06-01 | 2021-09-03 | 天津大学 | Pixel flicker suppression method of pulse image sensor |
| CN113347375B (en) * | 2021-06-01 | 2023-01-03 | 天津大学 | Pixel flicker suppression method of pulse image sensor |
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Inventor after: He Yaohua Inventor after: Ke Jie Inventor after: Wang Chaomin Inventor after: Shi Guoyong Inventor after: Zhang Guofang Inventor after: Deng Xiangning Inventor after: Wei Yong Inventor after: Yang Can Inventor after: Liao Cong Inventor after: Zheng Hongwu Inventor after: Wang Beiping Inventor before: He Yaohua Inventor before: Zhang Guofang Inventor before: Yang Can Inventor before: Wang Chaomin Inventor before: Liao Cong Inventor before: Ke Jie |
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Free format text: CORRECT: INVENTOR; FROM: HE YAOHUA ZHANG GUOFANG YANG CAN WANG CHAOMIN LIAO CONG KE JIE TO: HE YAOHUA SHI GUOYONG ZHANG GUOFANG DENG XIANGNING WEI YONG YANG CAN LIAO CONG ZHENG HONGWU WANG BEIPING KE JIE WANG CHAOMIN Free format text: CORRECT: ADDRESS; FROM: 430071 WUHAN, HUBEI PROVINCE TO: 545007 LIUZHOU, GUANGXI ZHUANG AUTONOMOUS REGION |
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