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Proceedings Paper

Research on the real-time calibration of the varifocal photoelectric imaging system
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Paper Abstract

A real-time system for optical axis of the varifocal photoelectric reconnaissance and tracking system is designed in this paper. Two images are acquired by the DSP processing system before and after zooming the focal length, and the varifocal and shifting coefficients are calculated real-timely through extracting the feature points and affine transform, etc, while the rotation coefficient equals to zero basically. The shifting parameter can be used to calibrate the optical axis, and its calibration precision is less than one pixel. The system can reduce the requirement of mechanical processing technology and mechanical tolerance greatly in the production procedure of the photoelectric reconnaissance and tracking system with a long focal length, and can make the system easer to implement.

Paper Details

Date Published: 26 November 2012
PDF: 7 pages
Proc. SPIE 8557, Optical Design and Testing V, 85571Y (26 November 2012); doi: 10.1117/12.999977
Show Author Affiliations
Bing Zhou, Shijiazhuang Mechanical Engineering College (China)
Fu-yu Huang, Shijiazhuang Mechanical Engineering College (China)
Yu-dan Chen, Shijiazhuang Mechanical Engineering College (China)


Published in SPIE Proceedings Vol. 8557:
Optical Design and Testing V
Yongtian Wang; Chunlei Du; Hong Hua; Kimio Tatsuno; H. Paul Urbach, Editor(s)

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