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Proceedings Paper

Research on nonlinear focal plane stitching method for TDICCD space camera
Author(s): Hui Zhong; Xin Jia; Yue Guo; Jing Wang; Yezhi Zhang
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Paper Abstract

Due to the influence of optical distortion, TDICCD camera will have imaging blur in the process of push broom imaging. From the angle of focal plane stitching, the principle of imaging blur leaded by optical distortion is analyzed, and a compensation method of nonlinear focal plane stitching is proposed. The principle of the method and the mathematical model of optimum stitching design are introduced. Take the off-axis three-mirror optical system as an example, the focal length of the optical system is 10m, the F number is 16, the design field of view 2ω is 1.4°, and the maximum distortion in the design field is 1%.The nonlinear stitching method is designed, and the optimal stitching angle is calculated. Compared with the linear stitching method, the design result of the nonlinear stitching method can decrease the maximum fuzzy value from 0.61 pixels to 0.2 pixels, and the 𝒇𝑴𝑻,𝑫 from 0.858 to 0.984.This study could provide the reference for focal plane design of long focal length and wide field space camera.

Paper Details

Date Published: 12 December 2018
PDF: 10 pages
Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 108461O (12 December 2018); doi: 10.1117/12.2505043
Show Author Affiliations
Hui Zhong, Beijing Institute of Space Mechanics and Electricity (China)
Xin Jia, Beijing Institute of Space Mechanics and Electricity (China)
Yue Guo, Beijing Institute of Space Mechanics and Electricity (China)
Jing Wang, Beijing Institute of Space Mechanics and Electricity (China)
Yezhi Zhang, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 10846:
Optical Sensing and Imaging Technologies and Applications
Mircea Guina; Haimei Gong; Jin Lu; Dong Liu, Editor(s)

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