Title :
Sparse Image Reconstruction for Partially known Blur Functions
Author :
Raich, Raviv ; Hero, Alfred O.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, we consider the problem of image reconstruction from the noisy blurred version of an original image when the blurring operator is partially known and the original image is sparse. Using optimization transfer, we derive a novel iterative algorithm in closed-form that incorporates both sparseness and partial knowledge of the image. We demonstrate the performance of the algorithm using simulations.
Keywords :
image denoising; image restoration; iterative methods; blur function; iterative algorithm; optimization transfer; sparse image reconstruction; Convolution; Cost function; Deconvolution; Image reconstruction; Iterative algorithms; Maximum likelihood estimation; Pixel; Sparse matrices; Vectors; Wavelet domain; Deconvolution; image reconstruction; sparse matrices;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.312461