Evaluation of the blur parameters from motion blurred images

A difficult problem in imaging systems is degradation of images caused by motion. In this paper we propose a method to identify important parameters with which to characterize the point spread function (PSF) of the blur, given only the blurred image itself. A first step of this method has been suggested in a former paper where only the blur extent parameter was considered. The identification method here is based on the concept that image characteristics along the direction of motion are different from the characteristics in other directions. The method proposed here identifies the direction and the extent of the PSF of the blur and evaluates its shape which depends on the type of motion during the exposure. Correct identification of the PSF parameters permits fast high resolution restoration of the blurred image.