关键词: 运动模糊, Radon变换, 倒频谱, 模糊角度, 模糊尺度

Abstract: The motion blur generated by the relative motion during the object and the imaging system is one of the most common reasons for image degradation, so the precision estimation of the motion blur parameters（blur orientation and length） has made a great impact on deblurred image. Observing from the process of the motion blur, this paper uses the Radon transform to find the blur orientation（angle θ）, then will get the blur length after making an analysis on the cepstrum of blurred image. The experimental results show that this algorithm is simple and effective.It is reliable for the motion blur parameters.

Key words: motion blur, Radon transform, cepstrum, blur orientation, blur length