| 面阵空间相机稳像补偿研究 |
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| 引用本文： | 徐之海,陈跃庭,王琦,刘兆军,李奇.面阵空间相机稳像补偿研究[J].红外与激光工程,2007,36(5):593-596. |
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| 作者姓名： | 徐之海 陈跃庭 王琦 刘兆军 李奇 |
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| 作者单位： | 1. 浙江大学,现代光学仪器国家重点实验室,浙江,杭州,310027
2. 北京空间机电研究所,北京,100076 |
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| 基金项目： | 国家自然科学基金
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国家高技术研究发展计划(863计划) |
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| 摘 要： | 分析了由于卫星平台颤震导致的空间相机分辨率下降的原因，阐述了进行空间相机稳像补偿的必要性及国内外现有技术方法与途径。提出了利用高速CCD获得光轴颤震偏移矢量、微机械像面移动补偿的空间相机稳定成像新方法。给出了光路结构设计方案，提出了光轴偏移量探测的软件算法。研究结果表明，该方法的颤震探测精度可以达到0.1~0.2像素，补偿精度可以达到亚像素水平，对空间相机在颤震卫星平台上获取高分辨图像具有一定价值。
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| 关 键 词： | 空间相机 像移补偿 稳像 |
| 文章编号： | 1007-2276（2007）05-0593-04 |
| 收稿时间： | 2006/11/10 |
| 修稿时间： | 2006-11-10 |
Image tremble compensation for space camera |
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| XU Zhi-hai,CHEN Yue-ting,WANG Qi,LIU Zhao-jun,LI Qi.Image tremble compensation for space camera[J].Infrared and Laser Engineering,2007,36(5):593-596. |
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| Authors: | XU Zhi-hai CHEN Yue-ting WANG Qi LIU Zhao-jun LI Qi |
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| Affiliation: | 1. State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China; 2. Beijing Institute of Space Mechanics & Electricity, Beijing 100076,China |
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| Abstract: | The reason of the lost of resolving power of space cameras caused by the satellite tremble was analyzed . The necessity and main technical methods currently used for image motion compensation of cameras were reviewed. A new methods of image tremble compensation with high-speed CCD detection of motion vectors and micro mechanic compensation of image plane was proposed. The optical scheme for this method was designed, and the algorithm for detection of trembling optical axis was studied in detail. The result showed that the accuracy of the tremble detection can reach 0.1-0.2 pixel size, and the compensation can be controlled on the scale of sub- pixel. It will be helpful for space cameras to acquire high resolution images on unstable space platforms. |
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| Keywords: | Space camera Image tremble compensation Image stabilization |
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