CN105450912B - The real-time field stitching method of scanning method area array CCD detector - Google Patents
The real-time field stitching method of scanning method area array CCD detector Download PDFInfo
- Publication number
- CN105450912B CN105450912B CN201510755201.7A CN201510755201A CN105450912B CN 105450912 B CN105450912 B CN 105450912B CN 201510755201 A CN201510755201 A CN 201510755201A CN 105450912 B CN105450912 B CN 105450912B
- Authority
- CN
- China
- Prior art keywords
- ccd
- graticle
- imaged
- mirror
- camera lens
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
-
- 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
- H04N23/698—Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Facsimile Scanning Arrangements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Image Input (AREA)
- Studio Devices (AREA)
Abstract
The real-time field stitching device and method of scanning method area array CCD detector belongs to aerospace technical field of imaging, in order to solve high-precision and the matched requirement of image planes of the area array CCD proposed in background technology splicing, the present invention proposes that a kind of real-time is good, stability is good, high-precision optical splicing method, and the optic splice of big visual field may be implemented.The present invention makes two pieces of CCD be imaged graticle using the sweeping of pendulum mirror, the position of graticle center imaging is with swing mirror angle at trigonometric function relationship, the rotation angle of pendulum mirror is determined according to the size of visual field, the position that CCD A and CCD B are determined according to the cell coordinate of pendulum mirror corner and the imaging of graticle center ensures pixel to just.Tests prove that the present invention, which splices precision, reaches coplanar error less than 0.01mm, overlap joint error is less than 0.009mm, and Parallel errors are less than 0.009mm, and overlap joint pixel can be arbitrary.
Description
Technical field
The invention belongs to aerospace technical field of imaging, and in particular to a kind of scanning method area array CCD detector regards in real time
Field splicing apparatus and method.
Background technology
With the development of ccd detector technology, area array CCD is the main carriers of imaging in recent years, large area array, small pixel
CCD brings great convenience to the development of aero remote sensor.But due to the limitation of technology at this stage, the life of large area array CCD
There is also difficulties for production, very expensive producing price, therefore, carry out splicing using multi-disc area array CCD and replace monolithic
Large area array CCD become one of the key technology of remote sensor research.
Past, once using a variety of methods come realize splicing, such as by tool microscope to line array CCD carry out machine
Tool splices, and is spliced to multi-disc partial array CCD using grating scale.Although many achievements are achieved, for dividing field stitching
Area array CCD cannot achieve splicing, the high-precision joining of large area array CCD is not still sought to better method.
Even if the prism for using half-reflection and half-transmission carries out optic splice, although precision has reached requirement, obtained visual field
Also very limited, and the prism of half-reflection and half-transmission can cause the loss of energy, be unfavorable for being imaged.
Invention content
In order to solve the problems in the existing technology, the present invention provides a kind of scanning method area array CCD detector is real-time
Field stitching device and method, this method real-time is good, stability is good, precision is high, and the optic splice of big visual field may be implemented.
The technical proposal for solving the technical problem of the invention is as follows：
The real-time field stitching device of scanning method area array CCD detector, the device include：CCD-A, CCD-B, focal plane tune
Whole pad, prism assemblies, light source, graticle, parallel light tube, pendulum mirror, camera lens and micro-adjusting mechanism；The light source emits beam, and passes through
After graticle and parallel light tube, reflected by the pendulum mirror in different location, by camera lens, by the light with graticle information by
Prism assemblies are reflexed in the CCD-A and CCD-B of the symmetrical both sides of prism assemblies and are imaged respectively；Focal plane adjusting pad installation
On the photosurface of CCD-A and CCD-B；CCD-A and CCD-B is separately mounted on respective micro-adjusting mechanism.
The joining method of the real-time field stitching device of scanning method area array CCD detector, this method comprises the following steps：
Step 1：It adjusts camera lens and parallel light tube, the optical axis for making parallel light tube is vertical with the optical axis of camera lens；Calibration pendulum mirror appearance
State makes the mirror normal of pendulum mirror and the optical axis of parallel light tube and camera lens optical axis angle at 45 °；
Step 2：Focal plane adjusting pad is adjusted, the photosurface of CCD-A and CCD-B is made to be located on same focal plane；With point
The light for drawing plate information is imaged on CCD-A and CCD-B by camera lens after prism assemblies respectively；
Step 3：CCD-A and CCD-B is imaged same graticle, by put scarnning mirror and fine tuning structure adjust CCD-A and
The posture of CCD-B, then the position by putting the determining CCD-A and CCD-B of rotation angle calculating of mirror, realize scanning method area array CCD
The method of the real-time field stitching of detector.
The beneficial effects of the invention are as follows：
The present invention makes two pieces of CCD be imaged graticle using the sweeping of pendulum mirror, the position of graticle center imaging and pendulum
Mirror pivot angle determines the rotation angle of pendulum mirror according to the size of visual field at trigonometric function relationship, according in pendulum mirror corner and graticle
The cell coordinate of heart imaging determines the position of CCD-A and CCD-B, ensures pixel to just.Tests prove that the present invention splices precision
Reach coplanar error and be less than 0.01mm, overlap joint error is less than 0.009mm, and Parallel errors are less than 0.009mm, and overlap joint pixel can appoint
Meaning.
Description of the drawings
The real-time field stitching apparatus structure schematic diagram of Fig. 1 scanning method area array CCD detectors of the present invention.
The real-time field stitching device fine tuning structure schematic diagram of Fig. 2 scanning method area array CCD detectors of the present invention.
The real-time field stitching method image schematic diagram of Fig. 3 scanning method area array CCD detectors of the present invention.
Specific implementation mode
The present invention is described in further details with reference to the accompanying drawings and examples.
As shown in Figure 1, the structure division of the real-time field stitching device of scanning method area array CCD detector of the present invention is by CCD-
A1, focal plane adjusting pad 2, prism assemblies 3, CCD-B4, light source 5, graticle 6, parallel light tube 7, pendulum mirror 8, camera lens 9, freqency fine adjustment machine
Structure 10, body 11 are constituted.Light source 5 emits beam, after graticle 6 and parallel light tube 7, via the pendulum mirror in different location
8 reflections, by camera lens 9, after the different location for arriving separately at prism assemblies 3, light of the reflection with 6 information of graticle is distinguished
It is imaged in CCD-A1 and CCD-B4.Prism assemblies 3 are installed on by prism in prism frame, sealing is fixed；CCD-A1 and CCD-
B4 is arranged symmetrically relative to 3 plane of symmetry of prism assemblies, is installed on camera organism frame by focal plane adjusting pad 2.Light source 5 can
Brightness is adjusted；6 line width of graticle is a pixel (0.009mm)；7 focal length of parallel light tube requires to be more than 9 focal length of camera lens
4 times；Camera lens 9 is remote sensor camera lens；CCD-A1 and CCD-B4 is separately mounted on respective micro-adjusting mechanism 10.Micro-adjusting mechanism
10 and body 11 coordinate and can accurately adjust position and the angle of CCD-A1 and CCD-B4.
As shown in Fig. 2, micro-adjusting mechanism 10 is by outer framework 14, pose adjustment knob 15, translation adjustment knob 16, inner frame
17, mounting screw 18 forms.Outer framework 14 is mounted on by screw 18 on body 11, and pose adjustment knob 15 is mounted on inside casing
On frame 17, the posture of CCD-A1 and CCD-B4 can be adjusted, translation adjustment knob 16 is mounted on outer framework 14, can adjust
The translation position of CCD-A1 and CCD-B4.
The joining method of the real-time field stitching device of scanning method area array CCD detector, this method comprises the following steps：
Step 1：Camera lens 9 and parallel light tube 7 are adjusted, keeps the optical axis of parallel light tube 7 vertical with the optical axis of camera lens 9；Calibration pendulum
8 posture of mirror makes the mirror normal of pendulum mirror 8 and the optical axis of parallel light tube 7 and 9 optical axis of camera lens angle at 45 °
Step 2：Focal plane adjusting pad 2 is adjusted, the photosurface of CCD-A1 and CCD-B4 is made to be located on same focal plane；Band
There is the light of 6 information of graticle to be imaged on CCD-A1 and CCD-B4 respectively after the reflection of prism assemblies 3 by camera lens 9；
Step 3：CCD-A1 and CCD-B4 is imaged same graticle 6, is adjusted by putting the scanning of mirror 8 and micro-adjusting mechanism
The posture of CCD-A1 and CCD-B4, then the position by putting the determining CCD-A1 and CCD-B4 of rotation angle calculating of mirror 8, realization are swept
The method for retouching the real-time field stitching of normal plane battle array ccd detector.
First, the angle of adjustment pendulum mirror 8, makes graticle 6 be imaged on the visual field one side edge of CCD-A1, records graticle 6
12 corresponding pixel ranks serial number of center of reticule, as (n, 0)；8 degree of angles of rotation pendulum mirror, make graticle 6 be imaged on CCD-A1
Another lateral edges of visual field change CCD-A1 postures by adjusting pose adjustment knob 15, make pixel where 6 center of graticle
The line number of position is identical as the pixel line number that previous step records, and records 6 center of reticule of graticle, 13 corresponding pixel ranks
Serial number, as (n, m)；As shown in Figure 3, a1、a2Be 6 center of graticle CCD-A1 at image pixel position coordinate distinguish
For (n, 0) and (n, m).
Secondly, it is imaged and records by the method for step 1 adjustment CCD-B4, pixel position where 6 center of graticle is made to exist
The line number of CCD-B4 imagings is identical as the line number that pixel position where 6 center of graticle is imaged in CCD-A1；Complete CCD-A1 and
The splicing of the CCD-B4 depth of parallelisms.
Again, it is known that the focal length of camera lens is f, and two CCD image planes spacing are L, and the width of area array CCD effective viewing field is B, meter
The rotation angle for calculating pendulum mirror 8 is that α formula are as follows：
Finally, adjustment translation adjustment knob 16 so that CCD-A1 is translated, and adjust pendulum mirror 8 angle, make 6 center of graticle at
As the visual field one side edge in CCD-A1, cell coordinate is (n1, m1)；Mirror rotation alpha around the shaft will be put, translation adjustment knob is adjusted
16 translation CCD-B4, make 6 center of graticle be imaged on another lateral edges of CCD-B4 visual fields, and cell coordinate is (0, m1)；Graduation
Pixel position columns where 6 center of plate is identical as the pixel columns of CCD-A1 is imaged on；Remove screw 18, micro-adjusting mechanism of dismantling
10, complete the splicing of CCD-A1 and CCD-B4.
Claims (1)
1. the real-time field stitching method of scanning method area array CCD detector realizes that the device of this method includes：CCD-A, CCD-B, coke
Flat trim template, prism assemblies, light source, graticle, parallel light tube, pendulum mirror, camera lens and micro-adjusting mechanism；The light source sends out light
Line is reflected by the pendulum mirror in different location after graticle and parallel light tube, by camera lens, will carry graticle information
Light reflexed in the CCD-A and CCD-B of the symmetrical both sides of prism assemblies and be imaged respectively by prism assemblies；Focal plane tune
Whole pad is on the photosurface of CCD-A and CCD-B；CCD-A and CCD-B is separately mounted on respective micro-adjusting mechanism；It is described
Micro-adjusting mechanism includes：Outer framework, pose adjustment knob, translation adjustment knob and inner frame；Pose adjustment knob is mounted on inside casing
On frame；Translation adjustment knob is mounted on outer framework, and the outer framework and inner frame are separately fixed on CCD；It is characterized in that,
This method comprises the following steps：
Step 1：It adjusts camera lens and parallel light tube, the optical axis for making parallel light tube is vertical with the optical axis of camera lens；Calibration pendulum mirror posture,
Make the mirror normal of pendulum mirror and the optical axis of parallel light tube and camera lens optical axis angle at 45 °；
Step 2：Focal plane adjusting pad is adjusted, the photosurface of CCD-A and CCD-B is made to be located on same focal plane；With graticle
The light of information is imaged on CCD-A and CCD-B by camera lens after prism assemblies reflect respectively；
Step 3：CCD-A and CCD-B is imaged same graticle, and CCD-A and CCD- is adjusted by putting scarnning mirror and micro-adjusting mechanism
The posture of B, then the position by putting the determining CCD-A and CCD-B of rotation angle calculating of mirror, realize the detection of scanning method area array CCD
The method of the real-time field stitching of device；
The specific method is as follows for the step 3：
Step A：The angle of adjustment pendulum mirror, makes graticle be imaged on the visual field one side edge of CCD-A, records in graticle crosshair
The corresponding pixel ranks serial number of the heart；Rotation pendulum mirror degree angle, makes graticle be imaged on another lateral edges of CCD-A visual fields, passes through tune
The pose adjustment knob of whole CCD-A changes CCD-A postures, and the line number with previous step of pixel position where making graticle center are remembered
The pixel line number of record is identical；
Step B：It is imaged and records by the method adjustment CCD-B of the step A, pixel position where graticle center is made to exist
The line number of CCD-B imagings is identical as the line number that pixel position where graticle center is imaged in CCD-A；Complete CCD-A and CCD-B
The splicing of the depth of parallelism；
Step C：The focal length of known camera lens is f, and two CCD image planes spacing are L, and the width of area array CCD effective viewing field is B, is calculated
The rotation angle for putting mirror is that α formula are as follows：
Step D：The translation adjustment knob for adjusting CCD-A and the angle for putting mirror, make graticle center be imaged on the visual field one of CCD-A
Lateral edges；Mirror rotation alpha around the shaft will be put, translation adjustment knob is adjusted and translates CCD-B, so that graticle center is imaged on CCD-B and regard
Another lateral edges of field, at this moment pixel position where graticle center is in picture where the line number that CCD-B is imaged with graticle center
First position is identical in the line number that CCD-A is imaged；Complete the splicing of CCD-A and CCD-B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510755201.7A CN105450912B (en) | 2015-11-09 | 2015-11-09 | The real-time field stitching method of scanning method area array CCD detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510755201.7A CN105450912B (en) | 2015-11-09 | 2015-11-09 | The real-time field stitching method of scanning method area array CCD detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105450912A CN105450912A (en) | 2016-03-30 |
| CN105450912B true CN105450912B (en) | 2018-09-28 |
Family
ID=55560648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510755201.7A Active CN105450912B (en) | 2015-11-09 | 2015-11-09 | The real-time field stitching method of scanning method area array CCD detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105450912B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505722B (en) * | 2017-08-21 | 2019-07-19 | 中国科学院长春光学精密机械与物理研究所 | A kind of multiple degrees of freedom visual field synthesis Method of Adjustment |
| CN109803091B (en) * | 2019-03-29 | 2021-03-12 | 中国科学院长春光学精密机械与物理研究所 | Pendulum type spiral scanning imaging system and method for single small visual field camera |
| CN112113745B (en) * | 2020-08-31 | 2022-03-22 | 中国科学院长春光学精密机械与物理研究所 | Camera focal plane design and adjustment method with multi-line array detector |
| CN114326136A (en) * | 2021-11-29 | 2022-04-12 | 武汉华中天经通视科技有限公司 | Optical axis calibration device and method without light source |
| CN116352410B (en) * | 2023-05-31 | 2023-09-15 | 浙江祥晋汽车零部件股份有限公司 | Assembling device and assembling method for assembling aluminum alloy battery tray frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8125520B2 (en) * | 2006-11-21 | 2012-02-28 | Honeywell International Inc. | System for establishing references for multi-image stitching |
| CN100465699C (en) * | 2007-12-05 | 2009-03-04 | 浙江大学 | Electro-optical system for implementing multiple CCD seamless concatenation using prismatic decomposition vignetting compensation |
| CN101650423B (en) * | 2009-09-11 | 2011-12-21 | 北京空间机电研究所 | Optical splicing method of large-array photoelectric device |
| CN101692447B (en) * | 2009-09-30 | 2011-02-02 | 浙江大学 | Multi-CCD super field of view image mosaic photoelectric system |
| CN102261909B (en) * | 2011-04-20 | 2012-10-03 | 中国科学院光电技术研究所 | Spliced large-area-array digital aerial surveying camera |
| CN102928903B (en) * | 2012-09-21 | 2014-11-26 | 中国科学院光电技术研究所 | Seamless optical splicing method for 3 x 3 area array detector |
| CN102917161B (en) * | 2012-09-21 | 2015-02-18 | 中国科学院光电技术研究所 | Seamless splicing method for realizing 3X 3 area array detector by adopting full-reflection prism |
| US10104241B2 (en) * | 2013-11-14 | 2018-10-16 | Drs Network & Imaging Systems, Llc | Method for integrated optical systems |
-
2015
- 2015-11-09 CN CN201510755201.7A patent/CN105450912B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105450912A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105450912B (en) | The real-time field stitching method of scanning method area array CCD detector | |
| CN108921901B (en) | Large-view-field camera calibration method based on precise two-axis turntable and laser tracker | |
| CN107680156B (en) | Three-dimensional reconstruction method based on polarization information | |
| CN110132420B (en) | Polarization measuring device, polarization measuring method, and optical alignment method | |
| CN101334267B (en) | Digital image feeler vector coordinate transform calibration and error correction method and its device | |
| CN105466334B (en) | The lens location calibration method of more camera lens vision collecting devices | |
| CN102519510B (en) | Calibration device and calibration method of position sensitive sensor | |
| CN107339935B (en) | Target space intersection measuring method for full-view scanning measuring system | |
| CN103791860A (en) | Tiny angle measuring device and method based on vision detecting technology | |
| NO20131730A1 (en) | Calibration procedure for trigonometry-based multi-media distance measurement systems | |
| CN104021540A (en) | Static state calibration device and method for machine visual surface detection equipment | |
| CN102360079A (en) | Laser range finder and working method thereof | |
| CN104567752A (en) | Stray light elimination dual-optical-path optical centering instrument | |
| CN105423957A (en) | Rotation shaft rotation angle measuring method restraining shafting dip angle rotation error | |
| CN109358068B (en) | Flaw detection device and method for large-caliber plane mirror based on line scanning and annulus splicing | |
| CN104406988A (en) | Method for detecting defects inside glass | |
| CN109724540A (en) | Two-dimentional MEMS scanning reflection mirror corner calibration system and scaling method | |
| CN104121854A (en) | Precision measuring system and precision measuring method for positions and diameters of automotive frame assembling holes | |
| CN105335941A (en) | Optical axis verticality adjustment apparatus and adjustment method adopting same | |
| CN101153914A (en) | Remote sensing mechanism testing device and method thereof | |
| CN106524951A (en) | Method and apparatus for measuring parallelism of germanium window plate | |
| CN109191527A (en) | A kind of alignment method and device based on minimum range deviation | |
| CN103076161A (en) | CCD (Charge Coupled Device) imaging technology-based digital V prism refraction rate measurement instrument and measurement method | |
| CN204578635U (en) | A kind of infrared camera and focal plane registration apparatus thereof | |
| CN102507019A (en) | Hartmann wavefront sensor based on micro-scanning for image quality detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |