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Study of image motion compensation in spectral imaging system
Li, Zhijun1,2; Chen, Xing Long1,2
Source PublicationProceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Volume9682Pages:968217
2016
Language英语
ISSN0277-786X
DOI10.1117/12.2243460
SubtypeC
AbstractIn the spectral imaging system, random jitter and posture change of the aircraft generated random image motion, and flight of aircraft caused forward image motion. Both of image motion can cause image blur in a longer exposure time, which need for image motion compensation. Due to limited field of view of the optical system, limited size and weight, a stable FSM (Fast Steering Mirror) was used for random image motion compensation and a compensation FSM was used for forward image motion compensation. In the random image motion compensation, inertial sensors were used for measuring the random jitter and the posture change of the aircraft. As the advantages and disadvantages for the gyroscope and inclinometer, we used data fusion of the two sensors to complementary advantages with closed-loop mode filter data based on the frequency domain. In this way, we got high linearity, little drift, high bandwidth and little electrical noise inertial measurement sensors. On the other hand, the motion of the compensation mirror was broken down to the amount of displacement within the time required for each interrupt movement. Under strict timing control, macro forward image motion compensation was realized in the exposure time. The above image motion compensation methods were applied to actual spectral imaging systems, aerial experiment results show that image motion compensation obtained good results and met the remaining image motion compensation image error was not more than 1/3 pixel. © 2016 SPIE.
KeywordData Fusion Error Compensation Frequency Domain Analysis Imaging Systems Jitter Manufacture Mirrors Motion Compensation Optical Systems Optical Testing Spectroscopy Telescopes
Indexed BySCI ; Ei
WOS IDWOS:000387746500042
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Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8548
Collection光电工程总体研究室(一室)
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu
2.610209, China
3. Key Laboratory of Optical Engineering, Chinese Academy of Science, Chengdu
4.610209, China
Recommended Citation
GB/T 7714
Li, Zhijun,Chen, Xing Long. Study of image motion compensation in spectral imaging system[J]. Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes,2016,9682:968217.
APA Li, Zhijun,&Chen, Xing Long.(2016).Study of image motion compensation in spectral imaging system.Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes,9682,968217.
MLA Li, Zhijun,et al."Study of image motion compensation in spectral imaging system".Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes 9682(2016):968217.
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