CN101692447B - Multi-CCD super field of view image mosaic photoelectric system - Google Patents
Multi-CCD super field of view image mosaic photoelectric system Download PDFInfo
- Publication number
- CN101692447B CN101692447B CN2009101536462A CN200910153646A CN101692447B CN 101692447 B CN101692447 B CN 101692447B CN 2009101536462 A CN2009101536462 A CN 2009101536462A CN 200910153646 A CN200910153646 A CN 200910153646A CN 101692447 B CN101692447 B CN 101692447B
- Authority
- CN
- China
- Prior art keywords
- ccd
- circuit board
- image planes
- width
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003384 imaging method Methods 0.000 claims abstract description 48
- 230000003287 optical effect Effects 0.000 claims abstract description 48
- 206010070834 Sensitisation Diseases 0.000 claims description 14
- 230000008313 sensitization Effects 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 description 17
- 238000012634 optical imaging Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Images
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a multi-CCD super field of view image mosaic photoelectric system, which comprises an imaging optical system with a lens, a rotatable reflector and an image plane circuit board which are orderly arranged in an optical path; and the image plane is a circuit board provided with M*N CCD and capable of rotating around a center shaft. The reflector and the circuit board can rotate and work at four positions, a circuit system works for four times to ensure that each CCD acquires images for four times, the whole system acquires 4*M*N images altogether by only using one lens and M*N CCD, and after simple mosaic processing, the system acquires an image of which the size is 2M*2N times that of each CCD image. The multi-CCD super field of view image mosaic photoelectric system does not have any blind area of the filed of view and really realizes seamless field of view mosaic without violent motion parts; the size of the field of view is not limited by CCD devices; and the multi-CCD super field of view image mosaic photoelectric system is suitable for long-range imaging systems requiring big field of view and high resolution.
Description
Technical field
The present invention relates to a kind of ultra-large vision field image planes splicing digital imagery electro-optical system.
Background technology
Digital imaging technology is growing, be widely used in for the digital imaging system of image sensing receiver with CCD (Charge Coupled Device, charge coupled device) in image acquisition fields such as Aero-Space earth observation, ordinary digital camera, infrared imaging system and the system.
But because the restriction of CCD device number of picture elements, even the optical imagery camera lens has very large visual field and high-resolution, system still is difficult to obtain very big amount of information.The visible light CCD that can buy in the world at present is to the maximum about 5k * k pixel, if do not adopt the image planes splicing, the highest obtainable image resolution ratio of imaging system can not surpass the 35M pixel, can not satisfy growing various imaging demand, and the device pixel of infrared imaging system still less.As LONG WAVE INFRARED CCD imaging system, can be 384 * 288 to the high pixel of the non-refrigeration device of the open supply of China in the world at present, the once single CCD imaging of imaging system can only obtain the amount of information of 11 everything elements, and imaging viewing field, resolution, the detection range of our infrared detection system are restricted.No matter present optical digital imaging system is visible light or infrared system, restriction system imaging viewing field angle and resolution mainly be the CCD device.
Digital imaging system will obtain higher resolution and bigger imaging viewing field, main now scanning technique and the splicing of adopting.Yet scanning system needs moving component, and the reliability of system is reduced greatly, is the biggest obstacle that aerospace field is used.Though splicing does not need moving component, but since generally all have around the CCD device imaging region one can not imaging the edge, about or two its sizes of edge addition are near the imaging region size up and down, therefore directly the CCD splicing will cause a very large imaging blind area.Also there is the optics of employing light-splitting method that image planes are separated into different locus, obtain the scheme of image information more respectively with a plurality of CCD, but the optics beam split is subjected to the restriction of system's rear cut-off distance, and beam splitting system still can cause certain visual field disappearance or serious gradual halation phenomena.
Therefore, invention is a kind of does not have moving component or has only simple motion and amount of exercise is little, imaging viewing field does not lack, do not have vignetting, the big visual field image planes splicing photo electric imaging system meaning of high pixel count is very huge.
Application number is: 200710069052.4 patent of invention discloses a kind of electro-optical system that realizes the multiple CCD seamless splicing, but this invention needs four imaging lens of utilization, quadruplet CCD circuit board, optics and electronic system are four times of the present invention, hardware complexity, costliness, not portable.
Summary of the invention
The invention provides a kind of multi-CCD super field of view image mosaic photoelectric system, do not have strenuous exercise parts, do not have visual field disappearance, do not have vignetting, can realize the imaging system of multiple CCD seamless splicing, with M*N CCD, the ultra-large vision field of realizing 2M * N CCD is as the plane.
A kind of multi-CCD super field of view image mosaic photoelectric system that the present invention proposes, whole system mainly comprises optical imaging system, rotary reflective mirror, three parts such as circuit board of M * N CCD is installed.
Optical imaging system generally can be the optical lens of large visual field high resolution, can design processing as required or buy (the present invention is not special to be required).
Be equipped with on the circuit board of M * N CCD, it is capable that CCD can be arranged in M row N, and M and N numerical value is hard-core on principle, depends primarily on the performance of the needs and the optical imagery camera lens of overall system.The centre-to-centre spacing of every adjacent two row CCD are 2 times of the actual sensitization width of each CCD image planes Width X0 on the circuit board; The centre-to-centre spacing of every adjacent two row CCD is 2 times of the actual sensitization width of each CCD image planes short transverse Y0.
Circuit board can rotate by piezoelectric ceramic or other little rotating mechanism, can do pitching and left-right rotation, can be that rotating shaft is done left-right rotation promptly with the CCD vertical axis of symmetry, and be that rotating shaft is done pitch rotation with the CCD horizontal symmetry axis, the CCD surface is vertical with the optical axis of reflective mirror reflection ray on the circuit board after guaranteeing to rotate.
The reflective mirror that is installed on the optical imaging system picture side light path can rotate by piezoelectric ceramic or other little rotating mechanism, makes the visual field, picture side of imaging optical system can produce displacement with respect to the circuit board that CCD is installed.Reflective mirror should have four service positions of different reflection angles at least, first service position make the optical axis center of imaging optical system be positioned at the circuit board center take back the top (X0/2, Y0/2) position, second service position makes the optical axis center of imaging optical system be positioned at the (X0/2 of circuit board center high right arrows, Y0/2) position, the 3rd service position makes the optical axis center of imaging optical system be positioned at the take back (X0/2 of below of circuit board center,-Y0/2) position, the 4th service position makes the optical axis center of imaging optical system be positioned at circuit board center take over (X0/2, the-Y0/2) position of below.
Reflective mirror CCD and Circuits System work when each service position are once worked four times altogether, make each CCD obtain image four times, and whole system obtains 4 * M * N width of cloth image altogether.Relative position relation according to four service positions of reflective mirror, and the layout of CCD on the circuit board, the visual field of four imagings just in time is a complimentary positions, just be full of whole image planes visual field behind the optical conjugate, handle through simple splicing, system obtains width of cloth size and is single CCD image planes size 2M * 2N image doubly, and realization CCD's is seamless spliced.
There is not the blind area, visual field in the present invention, really realizes field stitching seamless, no vignetting, and the visual field size do not limit by the CCD device, as long as the optical imagery camera lens allows, the theoretic imaging viewing field of native system is infinitely-great.The amount of exercise of moving component wherein is all very little, can rotate under the control of controllers such as piezoelectric ceramic.
The present invention only needs an imaging lens and M*N piece CCD altogether, and make system obtain 2M*2N doubly to the big view field image of CCD, and M, N numerical value are without limits, thoroughly solve because the CCD device is big inadequately the restricted problem of optical imaging system visual field size, be very suitable for needing big visual field, high-resolution remote imaging system, as satellite remote sensing, aircraft take photo by plane, field such as infrared reconnaissance air defense uses.
Description of drawings
Fig. 1 a is the relative position relation figure of optical imagery camera lens, reflective mirror, circuit board.
Fig. 1 b is the front elevation of reflective mirror.
Fig. 1 c is the front elevation of circuit board.
Fig. 2 a-Fig. 2 d is respectively the location diagram of reflective mirror at optical system image planes center, four service positions and circuit board.
Fig. 3 a-Fig. 3 d is respectively the image that reflective mirror is obtained at four service position CCD.
Fig. 3 e is the image that obtained for the four times design sketch after synthetic.
Embodiment
As shown in Figure 1a, a kind of multi-CCD super field of view image mosaic photoelectric system comprises optical imaging system, rotary reflective mirror, three parts such as circuit board of M * N CCD is installed.Optical imaging system can be the optical lens of large visual field high resolution, can design processing or purchase as required.Fig. 1 b is the front elevation of reflective mirror, and wherein, O1 is the reflective mirror center, and the u axle is the reflective mirror horizontal symmetry axis, and v is the reflective mirror vertical axis of symmetry.Fig. 1 c is the circuit board front elevation, and O is circuit board center (CCD imaging region center), and the x axle is the circuit board level symmetry axis, and the y axle is the circuit board vertical axis of symmetry.The photosensitive region horizontal direction of each piece CCD is X0, and vertical direction is Y0.The centre-to-centre spacing of every adjacent two row CCD are 2 times of the actual sensitization width of each CCD image planes Width X0 on the circuit board; The centre-to-centre spacing of every adjacent two row CCD is 2 times of the actual sensitization width of each CCD image planes short transverse Y0.
Fig. 2 a-Fig. 2 d is position and the visual field, optical system picture side of M * N CCD on the circuit board of the present invention.Optical system image planes center when Fig. 2 a is first position of reflective mirror and the position of circuit board relation; Optical system image planes center when Fig. 2 b is second position of reflective mirror and the position of circuit board relation; Optical system image planes center when Fig. 2 c is the 3rd position of reflective mirror and the position of circuit board relation; Optical system image planes center when Fig. 2 d is the 4th position of reflective mirror and the position of circuit board relation.Cylindrical among Fig. 2 a, 2b, 2c, the 2d is the imaging scope of optical imagery camera lens, and the geometric center o of cylindrical is center, visual field, picture side, i.e. optical axis and image planes intersection point.Blockage among the figure is the CCD device, and CCD can be arranged in M row N capable (signal is 3 row * 3 row among the figure), and M and N numerical value are hard-core on principle.
Reflective mirror rotates by piezoelectric ceramic or other little rotating mechanism, makes the visual field, picture side of imaging optical system can produce displacement with respect to the circuit board that CCD is installed.Circuit board rotates by piezoelectric ceramic or other little rotating mechanism, can do pitching and left-right rotation, can be that rotating shaft is done left-right rotation promptly with the CCD vertical axis of symmetry, and be that rotating shaft is done pitch rotation with the CCD horizontal symmetry axis, the CCD surface is vertical with the optical axis of reflective mirror reflection ray on the circuit board after guaranteeing to rotate.
Reflective mirror should have four service positions at least, first position make the optical axis center of imaging optical system be positioned at the circuit board center take back the top (X0/2, Y0/2) position is shown in Fig. 2 a; Second position make the optical axis center of imaging optical system be positioned at circuit board center high right arrows (X0/2, Y0/2) position is shown in Fig. 2 b; The 3rd position make the optical axis center of imaging optical system be positioned at the circuit board center take back the below (X0/2 ,-Y0/2) position is shown in Fig. 2 c; The 4th position make the optical axis center of imaging optical system be positioned at the circuit board center take over the below (X0/2 ,-Y0/2) position is shown in Fig. 2 d.
Reflective mirror CCD and Circuits System work when each service position are once worked four times altogether, make each CCD obtain image four times, and whole system obtains 4 * M * N width of cloth image altogether.Fig. 3 a is the image that whole CCD obtain when working for the first time, and Fig. 3 b is the image that whole CCD obtain when working for the second time, and Fig. 3 c is the image that whole CCD obtain when working for the third time, the image that whole CCD obtained when Fig. 3 d was the 4th task.
Relative position relation according to four service positions of reflective mirror, and the layout of M * N CCD on the circuit board, the visual field of four imagings just in time is a complimentary positions, handle through simple splicing, system obtains width of cloth size for single CCD image planes size 2M * 2N totally continuous image in space doubly, shown in Fig. 3 e.
Claims (2)
1. multi-CCD super field of view image mosaic photoelectric system, be included in the imaging optical system, reflective mirror and the picture planar circuit board that set gradually on the light path, it is characterized in that: the CCD of M * N the arranged that distribute on the described picture planar circuit board, on the circuit board on the image planes Width centre-to-centre spacing of adjacent two CCD be 2 times of the actual sensitization width of each CCD image planes Width; The centre-to-centre spacing of adjacent two CCD is 2 times of the actual sensitization width of each CCD image planes short transverse on the image planes short transverse;
Described reflective mirror is rotary, also can rotate as planar circuit board around the center, reflective mirror can rotate and be operated in four positions, four positions of the picture also corresponding rotation of planar circuit board, CCD receive reflective mirror reflection the corresponding native system imaging viewing field of scenery 1/4th, reflective mirror and circuit board are after four service positions and four imagings, lucky corresponding whole imaging viewing field, whole system is only used a camera lens and M*N piece CCD, through four imagings, obtain 4*M*N width of cloth image altogether, handle through splicing, system obtains width of cloth size and is single CCD image planes size 2M*2N image doubly;
First service position of described reflective mirror make the optical axis center of imaging optical system be positioned at the circuit board center take back the top, be initial point promptly with the circuit board center, be offset 1/2nd of the actual sensitization width of each CCD image planes Width left along the image planes Width, upwards be offset 1/2nd of the actual sensitization width of each CCD image planes short transverse along the image planes short transverse; Second service position makes the optical axis center of imaging optical system be positioned at circuit board center high right arrows, be initial point promptly with the circuit board center, be offset 1/2nd of the actual sensitization width of each CCD image planes Width to the right along the image planes Width, upwards be offset 1/2nd of the actual sensitization width of each CCD image planes short transverse along the image planes short transverse; The 3rd service position makes the optical axis center of imaging optical system be positioned at the below of taking back, circuit board center, be initial point promptly with the circuit board center, be offset 1/2nd of the actual sensitization width of each CCD image planes Width left along the image planes Width, offset downward 1/2nd of the actual sensitization width of each CCD image planes short transverse along the image planes short transverse; The 4th service position makes the optical axis center of imaging optical system be positioned at the below that takes over, circuit board center, be initial point promptly with the circuit board center, be offset 1/2nd of the actual sensitization width of each CCD image planes Width to the right along the image planes Width, offset downward 1/2nd of the actual sensitization width of each CCD image planes short transverse along the image planes short transverse.
2. image planes splicing electro-optical system according to claim 1, it is characterized in that: described circuit board is that rotating shaft is done left-right rotation or is that rotating shaft is done pitch rotation with the CCD horizontal symmetry axis with the CCD vertical axis of symmetry, makes on the circuit board after the rotation CCD surface vertical with the optical axis of reflective mirror emergent ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101536462A CN101692447B (en) | 2009-09-30 | 2009-09-30 | Multi-CCD super field of view image mosaic photoelectric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101536462A CN101692447B (en) | 2009-09-30 | 2009-09-30 | Multi-CCD super field of view image mosaic photoelectric system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101692447A CN101692447A (en) | 2010-04-07 |
| CN101692447B true CN101692447B (en) | 2011-02-02 |
Family
ID=42081118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101536462A Expired - Fee Related CN101692447B (en) | 2009-09-30 | 2009-09-30 | Multi-CCD super field of view image mosaic photoelectric system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101692447B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142432B (en) * | 2010-11-22 | 2012-12-26 | 北京空间机电研究所 | Focal plane assembly capable of realizing same viewing field splicing |
| CN102062599B (en) * | 2010-11-23 | 2012-09-26 | 中国科学院遥感应用研究所 | Spliced imaging system based on axis-shifting principle |
| CN102905061B (en) * | 2012-09-06 | 2015-04-01 | 中国科学院光电技术研究所 | Seamless splicing imaging photoelectric system of double-lens 9-piece area array detector |
| CN105450912B (en) * | 2015-11-09 | 2018-09-28 | 中国科学院长春光学精密机械与物理研究所 | The real-time field stitching method of scanning method area array CCD detector |
| CN106094194B (en) * | 2016-08-17 | 2019-06-14 | 江浩 | The acquisition methods, imaging device of samples pictures and its method for obtaining samples pictures under microscope |
| CN107613163A (en) * | 2017-08-22 | 2018-01-19 | 深圳市金立通信设备有限公司 | Camera structure, terminal device, expand camera and take pictures the method for visible angle |
| CN107734220A (en) * | 2017-10-13 | 2018-02-23 | 中国科学院上海技术物理研究所 | A kind of polyphaser stares detection system and imaging joint method |
| CN113840068A (en) * | 2021-09-14 | 2021-12-24 | 中国科学院上海技术物理研究所 | Space infrared camera for realizing high-aging view field splicing through image space scanning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146073A (en) * | 1991-05-23 | 1992-09-08 | United Technologies Corporation | Linear wavefront sensor camera with deformable mirror for recording velocity compensated images |
| CN101068016A (en) * | 2007-06-11 | 2007-11-07 | 浙江大学 | Photoelectric system for realizing multi-CCD seamless paste-up |
-
2009
- 2009-09-30 CN CN2009101536462A patent/CN101692447B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146073A (en) * | 1991-05-23 | 1992-09-08 | United Technologies Corporation | Linear wavefront sensor camera with deformable mirror for recording velocity compensated images |
| CN101068016A (en) * | 2007-06-11 | 2007-11-07 | 浙江大学 | Photoelectric system for realizing multi-CCD seamless paste-up |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101692447A (en) | 2010-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101692447B (en) | Multi-CCD super field of view image mosaic photoelectric system | |
| CN104833424B (en) | For the system and method for the polarization for measuring the light in image | |
| CN100465699C (en) | Electro-optical system for implementing multiple CCD seamless concatenation using prismatic decomposition vignetting compensation | |
| CN107205127B (en) | Light field imaging device of fold-in type camera array structure | |
| US20090268983A1 (en) | Digital imaging system and method using multiple digital image sensors to produce large high-resolution gapless mosaic images | |
| CN101256275B (en) | Microminiaturization co-image face panoramic imagery technique | |
| CN108419070B (en) | Light field imaging method based on PB phase modulation | |
| CN115335768B (en) | Imaging system with rotatable reflector | |
| JP2012531618A5 (en) | ||
| CN101068016A (en) | Photoelectric system for realizing multi-CCD seamless paste-up | |
| US9042717B2 (en) | Camera system with rotating mirror | |
| CN101546111A (en) | Method for twin-lens wide baseline catadioptric omnidirectional stereo imaging by using single camera and device thereof | |
| CN102354053A (en) | Flyback optical system and method for eliminating image blurring | |
| CN103348668B (en) | Light field camera head and photographing element | |
| CN103971606B (en) | Sphere P4 special shaped LED earth target dynamic simulative display method and system | |
| DE69106636T2 (en) | Imaging system. | |
| CN102388618A (en) | Imaging device | |
| US8634124B2 (en) | Optical apparatus and imaging apparatus | |
| CN104301590A (en) | Three-lens detector array video acquisition device | |
| CN108279421A (en) | Time-of-flight camera with high-resolution colour picture | |
| US20190246097A1 (en) | Plenoptic Cellular Imaging System | |
| CN108124127A (en) | Panoramic scanning monitoring system | |
| US10838250B2 (en) | Display assemblies with electronically emulated transparency | |
| EP2851748B1 (en) | Optoelectronic photodetector (variants) | |
| CN206460512U (en) | A kind of multichannel fisheye camera caliberating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100407 Assignee: Hangzhou Zheda Three Color Instrument Co., Ltd. Assignor: Zhejiang University Contract record no.: 2013330000079 Denomination of invention: Multi-CCD super field of view image mosaic photoelectric system Granted publication date: 20110202 License type: Common License Record date: 20130419 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |