CN106534754A - Electronic target correction circuit of camera and method for realizing electronic target correction of camera - Google Patents
Electronic target correction circuit of camera and method for realizing electronic target correction of camera Download PDFInfo
- Publication number
- CN106534754A CN106534754A CN201610970357.1A CN201610970357A CN106534754A CN 106534754 A CN106534754 A CN 106534754A CN 201610970357 A CN201610970357 A CN 201610970357A CN 106534754 A CN106534754 A CN 106534754A
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- China
- Prior art keywords
- video
- boresight
- video camera
- image
- target correction
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to an electronic target correction circuit of a camera and a method for realizing electronic target correction of a camera. The circuit comprises an interface chip for realizing 422 communication, a FPGA for adjusting a central position of an output image, and a storage chip for storing the central position information of the image. In addition, according to the method, the FPGA adjusts a central position of an image according to a 422 instruction; and when the central position of the image arrives at a designated position, the position information is stored into a nonvolatile memory unit according to an appointed way, thereby realizing electronic target correction. The electronic target correction circuit and the method have the following advantages: the central position of the outputted image is adjusted in an on-line manner according to the 422 instruction, thereby realizing electronic target correction; and the circuit employed by the method is simple; the realization way is simple; the target correction time is shortened obviously; and the target correction precision is improved.
Description
Technical field
The invention belongs to the device and method of electronics boresight, is related to a kind of video camera electronics boresight circuit and realizes video camera
The method of electronics boresight.
Background technology
When video camera is with miscellaneous equipment light path work altogether, the light axial adjustment one by camera optical axis and miscellaneous equipment is needed
Cause.Traditional video camera boresight adjusts output figure by the installation site of adjustment imageing sensor using mechanical boresight mode
The center of picture, wastes time and energy and precision is not high.
The content of the invention
Technical problem to be solved
In place of the deficiencies in the prior art, the present invention proposes a kind of video camera electronics boresight circuit and realizes shooting
The method of electromechanical sub- boresight
Technical scheme
A kind of video camera electronics boresight circuit, it is characterised in that including image sensor cell, digital video-processing unit,
422 communication units, nonvolatile memory cell and video format converting unit；Image sensor cell receives the defeated of optical lens
Go out, realize generation, conversion and the amplification of original image, by original image information output digital video processing unit；Digital video
Processing unit receives 422 signals by connected 422 communication unit, and 422 order of parsing is processed to video image；Number
Word video processing unit exports the video image for being processed to video format converting unit, and video format converting unit is completed
Video format is changed, outputting standard DVI video signals.
The digital video-processing unit is using the XC5VLX50 chips produced by XILINX companies.
MT9M034 chip of the described image sensor unit using the production of APTINA companies.
ADM3485 chip of 422 communication unit using AD companies.
CAT14C16 chip of the nonvolatile memory cell using ON companies.
The MDIN340 chips that the video format converting unit is produced by MACRO companies.
A kind of method using any one video camera electronics boresight circuit realiration video camera electronics boresight, its feature exist
It is as follows in step：
Step 1：FPGA is instructed according to RS422, in picture centre the superposition cross hairs, then mobile image that video camera shoots
The heart is overlapped with specified location；The specified location is the optical axis of photoelectric nacelle；
Step 2：Image center location is stored into the standard as calibration；Described image center is stored in video camera
Nonvolatile storage in；
Step 3：When going up electricity again, center location informations of the FPGA according to the calibration read, the image that video camera is shot
Center is overlapped with the center of calibration.
Beneficial effect
A kind of video camera electronics boresight circuit proposed by the present invention and the method for realizing video camera electronics boresight, circuit are included
The interface chip of 422 communications is realized, for adjusting the PFGA of output image center, for storage image center location information
Storage chip.Implementation by FPGA according to 422 instruction adjustment image center locations, when image center location reach it is specified
Positional information is stored in nonvolatile storage according to the mode of agreement behind position, realize electronics boresight.Advantages of the present invention
It is：According to the center of 422 instruction on-line tuning output images, electronics boresight is realized, the circuit adopted by the method is simple,
Implementation is easy, can significantly reduce the boresight time, improves boresight precision.
Description of the drawings
Fig. 1 realizes hardware principle block diagram for the present invention
Fig. 2 is the inventive method flowchart
Specific embodiment
In conjunction with embodiment, accompanying drawing, the invention will be further described：
The present invention is hardware device and logic control method two parts.This programme is set using FPGA as 422 instruction parsings
Main control device in standby and I IC buses, the storage chip with I IC interfaces as in I IC buses from equipment.
(1) host computer sends boresight instruction by 422 buses；
(2) according to instruction, the heart is superimposed cross hairs to FPGA in the picture；
(3) FPGA reaches specified location according to instruction mobile image center；
(4) FPGA stores positional information in nonvolatile storage as the main equipment of iic bus.
Such as Fig. 1, in the present embodiment, MT9M034 chip of the image sensor cell from the production of APTINA companies.Image
Sensor unit realizes generation, conversion, amplification and the output of original image；
Digital video-processing unit is from XC5VLX50 (FPGA) chip produced by XILINX companies.Fpga chip is main
Complete Computer Vision, 422 command analysis and iic bus control function.
ADM3485 chip of 422 communication units using AD companies, it is possible to achieve half-duplex 422 is communicated, maximum communication speed
10MB/S。
CAT14C16 chip of the nonvolatile memory cell using ON companies, memory capacity 16Kb.
The MDIN340 chips and peripheral circuit that video format converting unit is produced by MACRO companies is constituted.Complete video lattice
Formula is changed, outputting standard DVI video signals.
All power supplys of the power subsystem for needed for video processing circuitss offer, the LTM4600 produced using LINEAR companies
The TPS74401 chips of chip and the production of TI companies realize Power convert.
Image sensor cell receives the output of optical lens, realizes generation, conversion and the amplification of original image, will be original
Image information output digital video processing unit；Digital video-processing unit receives 422 by connected 422 communication unit
Signal, 422 order of parsing are processed to video image；Digital video-processing unit by the video image for being processed export to
Video format converting unit, video format converting unit complete video format conversion, outputting standard DVI video signals.
The step of video camera electronics boresight, is as follows：
Step 1：FPGA is instructed according to RS422, in picture centre the superposition cross hairs, then mobile image that video camera shoots
The heart is overlapped with specified location；The specified location is the optical axis of photoelectric nacelle；
Step 2：Image center location is stored into the standard as calibration；Described image center is stored in video camera
Nonvolatile storage in；
Step 3：When going up electricity again, center location informations of the FPGA according to the calibration read, the image that video camera is shot
Center is overlapped with the center of calibration.
The technical specification that the present invention reaches：
A) image resolution ratio：1024×768；
B) video signal standard：Meet DVI1.0 standards；
C) image center location adjusting range：256 pixels of level, vertical 192 pixels.
D) boresight precision：1 pixel.
Claims (7)
1. a kind of video camera electronics boresight circuit, it is characterised in that including image sensor cell, digital video-processing unit,
422 communication units, nonvolatile memory cell and video format converting unit；Image sensor cell receives the defeated of optical lens
Go out, realize generation, conversion and the amplification of original image, by original image information output digital video processing unit；Digital video
Processing unit receives 422 signals by connected 422 communication unit, and 422 order of parsing is processed to video image；Number
Word video processing unit exports the video image for being processed to video format converting unit, and video format converting unit is completed
Video format is changed, outputting standard DVI video signals.
2. video camera electronics boresight circuit according to claim 1, it is characterised in that：The digital video-processing unit is adopted
The XC5VLX50 chips produced by XILINX companies.
3. video camera electronics boresight circuit according to claim 1, it is characterised in that：Described image sensor unit is adopted
The MT9M034 chips of APTINA companies production.
4. video camera electronics boresight circuit according to claim 1, it is characterised in that：422 communication unit is public using AD
The ADM3485 chips of department.
5. video camera electronics boresight circuit according to claim 1, it is characterised in that：The nonvolatile memory cell adopts ON
The CAT14C16 chips of company.
6. video camera electronics boresight circuit according to claim 1, it is characterised in that：The video format converting unit by
The MDIN340 chips of MACRO companies production.
7. the side of any one video camera electronics boresight circuit realiration video camera electronics boresight described in a kind of utilization claim 1～6
Method, it is characterised in that step is as follows：
Step 1：FPGA according to RS422 instruct, video camera shoot picture centre superposition cross hairs, then mobile image center with
Specified location overlaps；The specified location is the optical axis of photoelectric nacelle；
Step 2：Image center location is stored into the standard as calibration；Described image center is stored in non-in video camera
In volatile memory；
Step 3：When going up electricity again, center location informations of the FPGA according to the calibration read, the picture centre that video camera is shot
Overlap with the center of calibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970357.1A CN106534754A (en) | 2016-11-03 | 2016-11-03 | Electronic target correction circuit of camera and method for realizing electronic target correction of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970357.1A CN106534754A (en) | 2016-11-03 | 2016-11-03 | Electronic target correction circuit of camera and method for realizing electronic target correction of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106534754A true CN106534754A (en) | 2017-03-22 |
Family
ID=58326725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610970357.1A Pending CN106534754A (en) | 2016-11-03 | 2016-11-03 | Electronic target correction circuit of camera and method for realizing electronic target correction of camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN106534754A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631583A (en) * | 1985-01-28 | 1986-12-23 | Northrop Corporation | Vidicon image motion compensation technique |
| US20130082183A1 (en) * | 2010-04-20 | 2013-04-04 | Bae Systems Australia Limited | Directed infra-red countermeasure system |
| CN202938702U (en) * | 2012-10-26 | 2013-05-15 | 中国航空工业集团公司洛阳电光设备研究所 | Electric target correction equipment for head-up display |
| CN203605809U (en) * | 2013-07-03 | 2014-05-21 | 中国兵器工业第二0二研究所 | Photoelectric artillery target-correcting and sighting device |
| CN104296732A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Automatic boresight method for lifting type head-up display |
| KR20160118539A (en) * | 2015-04-02 | 2016-10-12 | (주)덕광 | Bore sight device |
-
2016
- 2016-11-03 CN CN201610970357.1A patent/CN106534754A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631583A (en) * | 1985-01-28 | 1986-12-23 | Northrop Corporation | Vidicon image motion compensation technique |
| US20130082183A1 (en) * | 2010-04-20 | 2013-04-04 | Bae Systems Australia Limited | Directed infra-red countermeasure system |
| CN202938702U (en) * | 2012-10-26 | 2013-05-15 | 中国航空工业集团公司洛阳电光设备研究所 | Electric target correction equipment for head-up display |
| CN203605809U (en) * | 2013-07-03 | 2014-05-21 | 中国兵器工业第二0二研究所 | Photoelectric artillery target-correcting and sighting device |
| CN104296732A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Automatic boresight method for lifting type head-up display |
| KR20160118539A (en) * | 2015-04-02 | 2016-10-12 | (주)덕광 | Bore sight device |
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Application publication date: 20170322 |