Sparse Bayesian blind image deconvolution with parameter estimation

被引:21
作者
Amizic, Bruno [1 ]
Molina, Rafael [2 ,3 ]
Katsaggelos, Aggelos K. [1 ]
机构
[1] Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA
[2] Univ Granada, Dept Ciencias Comp, E-18071 Granada, Spain
[3] Univ Granada, IA, E-18071 Granada, Spain
关键词
CAMERA;
D O I
10.1186/1687-5281-2012-20
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this article, we propose a novel blind image deconvolution method developed within the Bayesian framework. We concentrate on the restoration of blurred photographs taken by commercial cameras to show its effectiveness. The proposed method is based on a non-convex l (p) quasi norm with 0 < p < 1 that is used for the image, and a total variation (TV) based prior that is utilized for the blur. Bayesian inference is carried out by utilizing bounds for both the image and blur priors using a majorization-minimization principle. Maximum a posteriori estimates of the unknown image, blur and model parameters are calculated. Experimental results (i.e., restorations of more than 30 blurred photographs) are presented to demonstrate the advantage of the proposed method compared to existing ones.
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收藏
页数:15
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