In this paper,space variant point spread function(SV-PSF) modeling is proposed,and image restoration method for the COV is studied.Firstly,a radial edge detection based SV-PSF modeling method is proposed,rest on the analysis of the blur regions′ distribution pattern in the COV image.Then,an image restoration method based on projection onto the convex sets(POCS) is studied;in view of the POCS is such a iterative solution that can be easily joined in the prior information (such as the space varian...