CN104580895B - It is a kind of that there is the airborne imaging system taken the photograph according to synchronous working ability - Google Patents
It is a kind of that there is the airborne imaging system taken the photograph according to synchronous working ability Download PDFInfo
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- CN104580895B CN104580895B CN201410829144.8A CN201410829144A CN104580895B CN 104580895 B CN104580895 B CN 104580895B CN 201410829144 A CN201410829144 A CN 201410829144A CN 104580895 B CN104580895 B CN 104580895B
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Abstract
A kind of have an airborne imaging system according to synchronous working ability taken the photograph, including：Motorized zoom lenses, imaging sensor, power module, signal processing module, interface module, memory module and image compression module；Sensor assembly is imaged by electronic zoom camera lens to target scene, and is transmitted after converting optical signals into data signal to signal processing module, and signal processing module receives after data signal is handled and is transferred to compression module；The signal received is transferred to image compression module by compression control module, and image compression module instructs according to compression control to be carried out exporting after compression of images storing to memory module to the signal received；Signal processing module with interface module by being connected；The system function meets Electric-Optic Turret to shooting and the functional requirement of photographing device, effectively reduces equipment volume, power consumption, reduces the design difficulty of Electric-Optic Turret equipment, improves the operating efficiency of Electric-Optic Turret equipment.
Description
Technical field
It is particularly a kind of that there is the airborne imaging system taken the photograph according to synchronous working ability the present invention relates to a kind of airborne imaging system
System, is mainly used in the use of airborne photoelectric turret system, and airborne photoelectric turret system is completely covered to visible in the major function of equipment
The requirement of light video camera and visible ray large area array camera, belongs to airborne imaging equipment field.
Background technology
Airborne photoelectric capstan head equipment is mainly used in scouting target area, specific objective is scanned for, identify with
And track and localization.Visible light camera and visible light camera are the crucial load of airborne photoelectric capstan head.Existing airborne photoelectric turns
Tower is typically equipped with two kinds of load of visible light camera and visible light camera, to realize target search and high-resolution
The requirement that photo obtains, but problems be present in this mode：
Airborne, especially unmanned aerial vehicle onboard capstan head equipment is a kind of to volume, weight and the extremely sensitive equipment of power consumption, is divided
Not Pei Bei visible light camera and camera occupy the space of preciousness, have impact on the installation of other payload, limit light
The Function of electric capstan head；
Electric-Optic Turret equips visible light camera and camera, it is necessary to consider two kinds of load data interfaces, instruction system respectively
The difference of system and mounting means, brings more difficulties to Electric-Optic Turret data transfer, the design of storage system, also improves into
This；
The difference of video camera and camera gun so that both are difficult to keep same visual field work, are not only brought to design
Difficulty, there is also many restrictions during use.
The content of the invention
Present invention solves the technical problem that it is：Overcome the deficiencies in the prior art, there is provided one kind, which has, to be taken the photograph according to synchronous working
The airborne imaging system of ability, integrate visible image capturing, visible ray high-resolution camera function.The system, which is operated in, takes the photograph photograph
When under integral pattern, taking pictures and imaging to work asynchronously, and keeps same visual field completely.And with abundant external interface, it is built-in
The functional units such as compression, storage, image enhaucament, Penetrating Fog, compared to existing equipment, integrated level greatly improves.The system function meets
Electric-Optic Turret effectively reduces equipment volume, power consumption, reduces Electric-Optic Turret and set to shooting and the functional requirement of photographing device
Standby design difficulty, improve the operating efficiency of Electric-Optic Turret equipment.
The present invention technical solution be：A kind of have an airborne imaging system according to synchronous working ability taken the photograph, including：Electricity
Dynamic zoom lens, imaging sensor, power module, signal processing module, interface module, memory module and image compression module；
Sensor assembly is imaged by electronic zoom camera lens to target scene, and converts optical signals into digital letter
Transmitted after number to signal processing module；
The signal processing module includes：3A algoritic modules, Electronic magnification module, Penetrating Fog and low-light (level) enhancing module, into
As sensor control block, lens control module, storage drive module, control module, compression control module and UART；
Signal processing module receives data signal and carries out automatic gain, AWB and automatic by 3A algoritic modules
It is changed into full resolution image signal after exposure-processed, full resolution image signal is divided into two paths of signals, wherein signal is direct all the way
Penetrating Fog and low-light (level) enhancing module are inputed to, another way signal is transformed to low point after Electronic magnification module carries out Electronic magnification
Penetrating Fog and low-light (level) enhancing module are inputed to after resolution vision signal,
Penetrating Fog is carried out with low-light (level) enhancing module to the full resolution image signal and low resolution video signal that receive
After Penetrating Fog and low-light (level) enhancing processing, send picture signal and process signal to interface module, and by picture signal or
Video signal transmission is to compression module；
The picture signal received or the instruction of vision signal and compression control are transferred to image pressure by compression control module
Contracting module, image compression module instruct according to compression control and carry out compression of images to the picture signal or vision signal that receive
After export and give storage drive module, storage drive module control memory module, by the picture signal or video after compression
Signal is stored；
Signal processing module receives external command by the UART communication interfaces being connected with interface module and is sent to control
Module, control module work according to each functional module of the external command control signal processing module received；
Imaging sensor control module and lens control module in signal processing module control respectively imaging sensor and
Electronic zoom camera lens, is configured to image forming job pattern；
Power module is respectively to motorized zoom lenses, imaging sensor, signal processing module, interface module, memory module
Powered with image compression module.
The interface module includes：First Cameralink interfaces, the 2nd Cameralink interfaces, RS422 interfaces, PAL
Interface and URAT interfaces, the first Cameralink interfaces are used to export full resolution image signal, the 2nd Cameralink interfaces
For exporting low-resolution video data signal, PAL interfaces are used to export low-resolution video analog signal, and RS422 interfaces are used
Communicated in external control unit outside, URAT interfaces are used to be connected with the UART interface of signal processing module.
The airborne imaging system includes three kinds of mode of operations, is respectively：Exposal model, video imaging pattern and take pictures with
Video imaging synchronous working pattern.
The resolution ratio of the full resolution image signal is 5120*5120, and the resolution ratio of low resolution video signal is small
In equal to 1024*1024.
Under the video imaging synchronous working pattern, the excursion of focal length is during electronic zoom lens imaging：40mm-
130mm。
Under the exposal model, airborne imaging system differentiates photo, the video imaging mould entirely with 4 frames/S rate-adaptive pacemaker
Under formula, airborne imaging system is with 30 frames/S rate-adaptive pacemaker video, under the video imaging synchronous working pattern, airborne imaging system
System is regarded together completely with 4 frames/S rate-adaptive pacemaker full resolution photo with 30 frames/S rate-adaptive pacemaker and full resolution photo
The video of field.
The Electronic magnification module has 1-5 times of Electronic magnification function, and visual field maximum is observed in most short focus and is：
60 ° × 60 °, in most focal length, observation visual field maximum is：10°×10°.
Summarize it is described above, the present invention there is advantages below：
(1) present invention is integrated with full resolution in single device and taken pictures and low-resolution video acquisition functional mode, and
And two kinds of functions can be realized while worked, the service efficiency of equipment is improved, during applied to Electric-Optic Turret, reduces number of devices
Amount, will take pictures, the visual light imaging load weight of two functions of video imaging is reduced within 1.7kg, and improves light
The reliability of electric capstan head；
(2) low resolution video signal and full resolution image signal synchronism output in the present invention, at any time, video
Signal and picture signal are respectively provided with identical visual field, and target following and positioning can be realized by low resolution video signal, and
Pass through full resolution image signal acquisition target and the detailed information of surrounding enviroment.Eliminate in the prior art to vision signal and
The switching and visual field matching operation of picture signal, improve imaging efficiency；
(3) present invention is combined using optical zoom and Electronic magnification, realizes maximum 32.5 times zoom, and each
Secondary multiple change brings details to enrich the change of degree, and zoom effect is identical with optical zoom, and achievable 60 ° of maximum ×
60 °, the change of minimum 2 ° × 2 ° visual field；
(4) present invention is internally integrated the Penetrating Fog and low-light (level) enhancing algoritic module of optimization, to view data and video data
Penetrating Fog processing and low-light (level) enhancing processing are carried out, view data and the quality of video data is improved, improves the environment of equipment
Adaptability；
(5) the compression memory module built in the present invention improves device integration, can effectively reduce the cost of Electric-Optic Turret.
Brief description of the drawings
Fig. 1 is present system theory diagram；
Fig. 2 is present system high-level schematic functional block diagram.
Embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, embodiments of the present invention are described in further detail.
It is as shown in Figure 1 present system theory diagram, Fig. 2 show present system high-level schematic functional block diagram.From Fig. 1
Understood with Fig. 2, it is provided by the invention a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that including：
Motorized zoom lenses, imaging sensor, power module, signal processing module, interface module, memory module and compression of images mould
Block；
Sensor assembly is imaged by electronic zoom camera lens to target scene, and converts optical signals into digital letter
Transmitted after number to signal processing module,
The signal processing module includes：3A algoritic modules, Electronic magnification module, Penetrating Fog and low-light (level) enhancing module, into
As sensor control block, lens control module, storage drive module, control module, compression control module and UART；
Signal processing module receives data signal and carries out automatic gain, AWB and automatic by 3A algoritic modules
It is changed into full resolution image signal after exposure-processed.
Full resolution image signal is divided into two paths of signals, wherein signal is directly inputted to Penetrating Fog and low-light (level) enhancing mould all the way
Block, another way signal input to Penetrating Fog after being transformed to low resolution video signal after Electronic magnification module carries out Electronic magnification
Strengthen module with low-light (level), the resolution ratio of the full resolution image signal is 5120*5120, and low resolution video signal divides
Resolution is less than or equal to 1024*1024；The Electronic magnification module has 1-5 times of Electronic magnification function, is seen in most short focus
Surveying visual field maximum is：60 ° × 60 °, in most focal length, observation visual field maximum is：10°×10°；
Penetrating Fog is carried out with low-light (level) enhancing module to the full resolution image signal and low resolution video signal that receive
After Penetrating Fog and low-light (level) enhancing processing, send picture signal and process signal to interface module, and by picture signal or
Video signal transmission is to compression module.
The picture signal received or the instruction of vision signal and compression control are transferred to image pressure by compression control module
Contracting module, image compression module instruct according to compression control and carry out compression of images to the picture signal or vision signal that receive
After export and give storage drive module, storage drive module control memory module, by the picture signal or video after compression
Signal is stored；
Signal processing module receives external command by the UART communication interfaces being connected with interface module and is sent to control
Module, control module work according to each functional module of the external command control signal processing module received；
The interface module includes：First Cameralink interfaces, the 2nd Cameralink interfaces, RS422 interfaces, PAL
Interface and URAT interfaces, wherein Cameralink interface chips are DS90CR285MTD, and the first Cameralink interfaces are used for defeated
Go out full resolution image signal, the 2nd Cameralink interfaces are used to export low-resolution video data signal, and PAL interfaces are used for
Low-resolution video analog signal is exported, RS422 interfaces are used to be communicated with external control unit outside, and URAT interfaces are used for and letter
The UART interface connection of number processing module；
Imaging sensor control module and lens control module in signal processing module control respectively imaging sensor and
Electronic zoom camera lens, is configured to image forming job pattern；
Power module is respectively to motorized zoom lenses, imaging sensor, signal processing module, interface module, memory module
Powered with image compression module.
The airborne imaging system includes three kinds of mode of operations, is respectively：Exposal model, video imaging pattern and take pictures with
Video imaging synchronous working pattern, specific work process are：
Exposal model：Interface module receives photographing instruction by RS422 communication interfaces, and gets the work of camera
Mode setting instruction, then signal processing unit obtained and instructed by UART interface, instruction parsed, extracted by control unit
Imaging parameters information, and the mode of operation as sensor is accordingly arranged to, complete point of signal processing unit collection sensor output
Resolution image data information, according to instruction carry out Penetrating Fog and low-light (level) enhancing processing after be respectively fed to compress storage control unit and
External interface unit is exported.
Video imaging pattern：Interface module receives video imaging by RS422 communication interfaces and instructed, while obtaining
Set and instruct to video imaging mode of operation, then when signal processing unit sets gain, the exposure of imaging sensor by module
Between wait initial parameter value, view data pass through into 3A algoritic modules, acquisition imaging parameters, and be configured like sensor accordingly.Electricity
After sub- zoom module obtains 30 frames/S full resolution image data, view data is subjected to down-sampling, resolution ratio is reduced to
1024*1024, and keep former frame frequency to export to image Penetrating Fog and low-light (level) enhancing module, it is further according to instruction after the completion of processing
The operation such as it is compressed, stores and exports.
Take pictures the pattern that worked asynchronously with video imaging：Interface module is received by RS422 communication interfaces to be taken the photograph according to synchronous work
Instruct, signal processing unit obtained by UART modules and by control module analysis instruction after, pass through imaging sensor control
Imaging sensor is set as 30 frames/second by molding block, and gathers view data, according to external command or 3A modules obtain into
As parameter setting imaging sensor working condition.Control module control 3A modules timing or according to external trigger signal by full resolution
View data is sent into low-light (level) enhancing and Penetrating Fog processing module, and the full resolution image data for handling completion are sent into compression, storage
Control module.Full resolution image data are sent into Electronic magnification module simultaneously, (PAL-system is defeated by 1024 × 1024 after zoom
Go out is then 720*576) the high frame frequency data of resolution ratio are sent into low-light (level) enhancing and Penetrating Fog module, the data of completion are handled by the
Two Cameralink or PAL interfaces export.While work more than, the lens control module in signal processing unit is read in real time
The potentiometer voltage value returned during camera switching zoom, the focal length residing for camera lens is obtained by magnitude of voltage, and focal length is limited to
Between 40mm-130mm.
Under the exposal model, airborne imaging system differentiates photo, the video imaging mould entirely with 4 frames/S rate-adaptive pacemaker
Under formula, airborne imaging system is with 30 frames/S rate-adaptive pacemaker video, under the video imaging synchronous working pattern, airborne imaging system
System is regarded together completely with 4 frames/S rate-adaptive pacemaker full resolution photo with 30 frames/S rate-adaptive pacemaker and full resolution photo
The video of field.
Claims (7)
1. a kind of have the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that including：Motorized zoom lenses, imaging
Sensor, power module, signal processing module, interface module, memory module and image compression module；
Sensor assembly is imaged by electronic zoom camera lens to target scene, and after converting optical signals into data signal
Transmit to signal processing module,
The signal processing module includes：3A algoritic modules, Electronic magnification module, Penetrating Fog and low-light (level) enhancing module, imaging pass
Sensor control module, lens control module, storage drive module, control module, compression control module and UART；
Signal processing module receives data signal and carries out automatic gain, AWB and automatic exposure by 3A algoritic modules
It is changed into full resolution image signal after processing, full resolution image signal is divided into two paths of signals, wherein signal directly inputs all the way
To Penetrating Fog and low-light (level) enhancing module, another way signal is transformed to low resolution after Electronic magnification module carries out Electronic magnification
Penetrating Fog and low-light (level) enhancing module are inputed to after vision signal,
Penetrating Fog carries out Penetrating Fog with low-light (level) enhancing module to the full resolution image signal and low resolution video signal that receive
After being handled with low-light (level) enhancing, picture signal and process signal are sent to interface module, and by picture signal or video
Signal is transferred to compression module；
The picture signal received or the instruction of vision signal and compression control are transferred to compression of images mould by compression control module
Block, image compression module instructed according to compression control the picture signal or vision signal that receive are carried out it is defeated after compression of images
Go out to give storage drive module, storage drive module control memory module, by the picture signal or vision signal after compression
Stored；
Signal processing module receives external command by the UART communication interfaces being connected with interface module and is sent to control module,
Control module works according to each functional module of the external command control signal processing module received；
Imaging sensor control module and lens control module in signal processing module control imaging sensor and electronic respectively
Zoom camera lens, image forming job pattern is configured；
Power module gives motorized zoom lenses, imaging sensor, signal processing module, interface module, memory module and figure respectively
As compression module is powered.
It is 2. according to claim 1 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
Stating interface module includes：First Cameralink interfaces, the 2nd Cameralink interfaces, RS422 interfaces, PAL interfaces and URAT
Interface, the first Cameralink interfaces are used to export full resolution image signal, and the 2nd Cameralink interfaces are low for exporting
Resolution video data signal, PAL interfaces are used to export low-resolution video analog signal, and RS422 interfaces are used to control with outside
Unit processed is communicated, and URAT interfaces are used to be connected with the UART interface of signal processing module.
It is 3. according to claim 1 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
Stating airborne imaging system includes three kinds of mode of operations, is respectively：Exposal model, video imaging pattern and take pictures same with video imaging
Walk mode of operation.
It is 4. according to claim 1 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
The resolution ratio for stating full resolution image signal is 5120*5120, and the resolution ratio of low resolution video signal is less than or equal to 1024*
1024。
It is 5. according to claim 3 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
State under video imaging synchronous working pattern, the excursion of focal length is during electronic zoom lens imaging：40mm-130mm.
It is 6. according to claim 3 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
State under exposal model, airborne imaging system differentiates photo entirely with 4 frames/S rate-adaptive pacemaker, airborne under the video imaging pattern
Imaging system is with 30 frames/S rate-adaptive pacemaker video, and under the video imaging synchronous working pattern, airborne imaging system is with 4 frames/S
Rate-adaptive pacemaker full resolution photo, while with 30 frames/S rate-adaptive pacemaker and full resolution photo completely with the video of visual field.
It is 7. according to claim 1 a kind of with the airborne imaging system taken the photograph according to synchronous working ability, it is characterised in that：Institute
Stating Electronic magnification module has 1-5 times of Electronic magnification function, and visual field maximum is observed in most short focus and is：60 ° × 60 °,
Visual field maximum is observed during most focal length is：10°×10°.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106572288A (en) * | 2016-10-19 | 2017-04-19 | 广东容祺智能科技有限公司 | Unmanned aerial vehicle image transmission integrated camera |
| CN107659784B (en) * | 2017-08-31 | 2019-05-28 | 北京航宇创通技术股份有限公司 | CameraLink image processing apparatus and Electric-Optic Turret |
| CN113625503A (en) * | 2018-07-18 | 2021-11-09 | 深圳市大疆创新科技有限公司 | Image shooting method and unmanned aerial vehicle |
| CN109299030B (en) * | 2018-09-10 | 2019-06-11 | 南京莱斯电子设备有限公司 | The method that cameralink based on ZYNQ turns PAL system |
| CN113852762B (en) * | 2021-09-27 | 2022-07-26 | 荣耀终端有限公司 | Algorithm calling method and algorithm calling device |
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| CN101465033A (en) * | 2008-05-28 | 2009-06-24 | 丁国锋 | Automatic tracking recognition system and method |
| CN101662582A (en) * | 2009-09-08 | 2010-03-03 | 长春理工大学 | Method for compensating image dithering of airborne imaging equipment |
| EP2613123A2 (en) * | 2012-01-03 | 2013-07-10 | Centre National D'etudes Spatiales | Method for calibrating alignment biases of an earth observation system using symmetrical photographs |
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| CN101465033A (en) * | 2008-05-28 | 2009-06-24 | 丁国锋 | Automatic tracking recognition system and method |
| CN101662582A (en) * | 2009-09-08 | 2010-03-03 | 长春理工大学 | Method for compensating image dithering of airborne imaging equipment |
| EP2613123A2 (en) * | 2012-01-03 | 2013-07-10 | Centre National D'etudes Spatiales | Method for calibrating alignment biases of an earth observation system using symmetrical photographs |
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