关键词: 运动模糊图像, 图像复原, 点扩展函数, 霍夫变换改进算法, 二次维纳滤波

Abstract: According to the characteristics of image blurring caused by motion，analyzed detailedly the degradation model and the recovery model of blurred image causing by uniform linear motion，made up the algorithm of point spread function which is directly set up in the moving direction，and used the improved Hough transform to detect point spread parameters.This paper uses secondary Wiener filtering method to recover blurring image.Experiments show that the means enhance the noise immunity and stability of recovered images，as well as effectively preserved image detail at the request of a priori conditions without adding any circumstances.

Key words: motion-blurred image, image restoration, point spread function, Hough transform improved algorithm, quadratic Wiener filter