关键词: 去模糊, 非均匀模糊核, 局部先验, 局部极值分解, 振铃

Abstract: In view of the problem of ringing effect and missing details in Richardson Lucy（RL） algorithm under conventionally uniform blur model, an improved RL algorithm based on the non-uniform blur model is put forward. Under the blur model of projective motion path based on Yu-Wing, edge image which has structure and no ringings is extracted, using the method based on local extremum decomposition in the iterative process. Making the blurred image and the edge image as the inputs, then the inputs using the RL method with partial prior terms are deblurred. Experimental results demonstrate the effectiveness of the algorithm to suppress the ringing effect, while preserving the image details, and indicate that the non-uniform blur model is more effective to deblurring in camera shake.

Key words: motion deblurring, non-uniform kernel, local a prior, local extremum filtering, ringing