CN201436557U - CCD line camera precise calibration device - Google Patents
CCD line camera precise calibration device Download PDFInfo
- Publication number
- CN201436557U CN201436557U CN2008201781234U CN200820178123U CN201436557U CN 201436557 U CN201436557 U CN 201436557U CN 2008201781234 U CN2008201781234 U CN 2008201781234U CN 200820178123 U CN200820178123 U CN 200820178123U CN 201436557 U CN201436557 U CN 201436557U
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- China
- Prior art keywords
- guide rail
- inspection
- carrier
- integral support
- ccd line
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- Expired - Fee Related
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Abstract
A CCD line camera precise calibration device belongs to field of CCD camera precise calibration, solving determination problem of CCD line camera precise calibration control point. An inspection plane carrier is arranged on an integral support rack, an inspection figure is arranged on the inspection figure plane carrier, the horizontal adjustment position of the whole support rack is arranged at the bottom of the integral support rack and is connected with the support rack; two precise guide rails parallel to each other are installed on the integral support rack; the inspection figure plane carrier is suspended above the two precise guide rails through two guide rail sliding blocks; a high-precision level bubble is designed on the top of the inspection figure plane carrier; a drive motor is connected with the guide rail sliding block through a screw rod to drive the inspection figure plane carrier to move along the precise guide rails; and a carrier displacement encoder is connected coaxially with the motor. Projection center, orientation and attitude parameters can be solved by a plurality of CCD line camera measure data and corresponding space coordinate data of control point in different positions.
Description
One technical field
This utility model patent belongs to the accurate calibration technical field of CCD camera.
Two background technologies
It is to utilize the way at outdoor laying reference mark to realize that conventional precision optics measures the camera calibration.These reference mark are the accurate coordinates that measure each point with total powerstation in advance, then these reference mark are carried out photogrammetricly, find the solution projection centre, orientation and the attitude of camera again; But principle of work for the line sweep of CCD line-scan digital camera, traditional way can't realize to its calibration, must design and find a kind of conveniently, way high-precision, easy realization projection centre, orientation and the attitude of coming calibration CCD line-scan digital camera.The present invention according to actual needs with the characteristics of line-scan digital camera scanning, designed the accurate calibration device of the CCD line-scan digital camera that satisfies above-mentioned requirements.
Three summary of the invention
In order to realize that the precision of CCD line-scan digital camera is detected, with equation solution projection centre, orientation, attitude, at first need one group of test pattern that satisfies certain accuracy requirement,, require to obtain easily the three dimensional space coordinate of impact point on the test pattern according to the needs of algorithm.The device of simple way, low precision does not satisfy the conditional request of the equation of the projection centre of equation solution CCD line-scan digital camera, orientation, attitude.The utility model has designed a special pick-up unit for this reason.
The technical scheme that this its technical matters of device solves is adopted is:
The accurate calibration device of a kind of CCD line-scan digital camera is placed the test pattern flat carrier on integral support, test pattern places on the test pattern flat carrier, and the integral support leveling device is positioned at the bottom of integral support, links to each other with integral support; Two precise guide rail that are parallel to each other are installed on integral support; The test pattern flat carrier is suspended from two precise guide rail by two guide rail sliding shoes; Test pattern flat carrier top design has the high precision leveling bubble; Drive motor links to each other with the guide rail sliding shoe by leading screw, drives the test pattern flat carrier and moves along precise guide rail; The carrier displacement encoder is connected with motor coaxle.
The beneficial effects of the utility model are can determine the three dimensional space coordinate of impact point on the test pattern when detecting the CCD line-scan digital camera, definite problem of required object space target control point coordinate when solving CCD line-scan digital camera detection computations.
Four description of drawings
Below in conjunction with the sharp embodiment of accompanying drawing the utility model is described further.
Fig. 1 is the accurate calibration structure drawing of device of CCD line-scan digital camera of the present utility model.
1. test pattern flat carriers among the figure, 2. the leveling device of carrier, the 3. leveling device of carrier, 4. the high precision leveling bubble of carrier, 5.X high precision leveling bubble, 6.Y high precision leveling bubble, 7. integral support leveling device, 8. integral support leveling device, 9. integral support leveling device, 10. integral support leveling device, the drive motor of 11. carriers, 12. carrier displacement encoders, 13. precision lead screw, 14. closed nut, 15. guide rail sliding shoes, 16. guide rail sliding shoes, 17. precise guide rail, 18. precise guide rail, 19. motor-driven and displacement record device, 20. rigid cage.
Five embodiments
In Fig. 1, adjust integral support leveling device 7,8,9,10 at first repeatedly, make X high precision leveling bubble 5 and Y high precision leveling bubble 6 place horizontal level, again by adjusting the leveling device 2,3 of carrier, make the high precision leveling bubble 4 at test pattern flat carrier 1 top be horizontal, it is the coordinate origin position that drive motor 11 makes test pattern flat carrier 1 be in the original position, and writes down it.
Two precise guide rail 17,18 spatially parallel to each other are positioned on the rigid cage 20, and are placed in horizontal level.Two guide rail sliding shoes 15,16 place on the precise guide rail, and guide rail sliding shoe and closed nut 14 are rigidly connected, and the guide rail sliding shoe can be done horizontal motion along precise guide rail.Test pattern flat carrier 1 by vertical place between two guide rail sliding shoes, utilize the leveling device 2,3 of carrier that test pattern flat carrier and two guide rail sliding shoes are linked together.When the drive motor 11 of carrier rotates, drive closed nut 14, guide rail sliding shoe 15, guide rail sliding shoe 16 by precision lead screw 13 and carrying test pattern flat carrier 1, do horizontal shift campaign along precise guide rail 17,18 perpendicular to ground.Displacement encoder 12 and 11 coaxial connections of drive motor, when motor 11 is driven by programmed control, motor drags carrier 1 when doing tangential movement on precise guide rail 17,18, the accurate umber of pulse of displacement encoder 12 outputs has just been represented the accurate horizontal displacement of carrier 1, and 19 pairs of these horizontal displacements of motor-driven and displacement record device carry out record.When the CCD line-scan digital camera constantly measured the resolution chart on the carrier 1 of doing the horizontal shift campaign, the volume coordinate of the impact point on the resolution chart can be determined easily.
Claims (1)
1. the accurate calibration device of CCD line-scan digital camera is placed the test pattern flat carrier on integral support, and test pattern places on the test pattern flat carrier, it is characterized in that: the integral support leveling device is positioned at the bottom of integral support, links to each other with integral support; Two precise guide rail that are parallel to each other are installed on integral support; The test pattern flat carrier is suspended from two precise guide rail by two guide rail sliding shoes; Test pattern flat carrier top is provided with the high precision leveling bubble; Drive motor links to each other with the guide rail sliding shoe by leading screw, drives the test pattern flat carrier and moves along precise guide rail; The carrier displacement encoder is connected with motor coaxle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201781234U CN201436557U (en) | 2008-11-20 | 2008-11-20 | CCD line camera precise calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008201781234U CN201436557U (en) | 2008-11-20 | 2008-11-20 | CCD line camera precise calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436557U true CN201436557U (en) | 2010-04-07 |
Family
ID=42373009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008201781234U Expired - Fee Related CN201436557U (en) | 2008-11-20 | 2008-11-20 | CCD line camera precise calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592309A (en) * | 2014-10-23 | 2016-05-18 | 鸿富锦精密工业（深圳）有限公司 | Depth of field testing device |
| CN107289970A (en) * | 2016-04-13 | 2017-10-24 | 北京四维益友信息技术有限公司 | A kind of calibration system of stereoscopic camera |
-
2008
- 2008-11-20 CN CN2008201781234U patent/CN201436557U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592309A (en) * | 2014-10-23 | 2016-05-18 | 鸿富锦精密工业（深圳）有限公司 | Depth of field testing device |
| CN105592309B (en) * | 2014-10-23 | 2018-11-02 | 中山市云创知识产权服务有限公司 | Depth of field test device |
| CN107289970A (en) * | 2016-04-13 | 2017-10-24 | 北京四维益友信息技术有限公司 | A kind of calibration system of stereoscopic camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100407 Termination date: 20121120 |