Improvement Algorithm for The Unfocused Image Captured by CMOS Camera Module

摘要

In this paper, we present an algorithm for obtaining an original image which becomes blurred due to the size of the aperture of the CMOS camera module in capturing images of the objects near the camera. We introduce the mathematical property of a circulant matrix which can be used to describe the PSF and propose a new algorithm based on this matrix. We suggest new algorithms for both one-dimensional and two-dimensional signal processing case. These proposed algorithms were validated by the results of computer simulation for two-dimensional images synthesized by a CMOS camera model which was based on a pinhole camera model previously proposed by our research group.