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运动物体的压缩感知成像

, PP. 17-23

Keywords: 运动模糊,压缩感知,点扩散函数,解卷积

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Abstract:

在使用压缩感知成像系统进行成像时,物体的运动会导致获取的物体图像分辨率下降。为了克服运动的干扰需要额外装置获取物体运动的参数,但在很多情况下无法获取物体运动速度。针对这一问题,本文提出利用物体运动与散斑运动的相关性,采用散斑运动方式来抵消物体运动从而消除运动造成的分辨率下降。采用压缩感知算法利用多组不同散斑运动补偿情况下的参数获取不同的物体图像,最后利用物体运动和散斑运动的相关性判据参数,最终获得消除运动干扰的物体图像。算法求解中同时考虑了系统点扩散函数的影响,采用解卷积算法获取了消除运动和系统点扩散函数影响的物体图像。最后数字仿真结果证实了所提算法的有效性。

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