Robust Image Restoration for Motion Blur of Image Sensors.
Blind image restoration algorithms for motion blur have been deeply researched in the past years. Although great progress has been made, blurred images containing large blur and rich, small details still cannot be restored perfectly. To deal with these problems, we present a robust image restoration algorithm for motion blur of general image sensors in this paper. Firstly, we propose a self-adaptive structure extraction method based on the total variation (TV) to separate the reliable structures from textures and small details of a blurred image which may damage the kernel estimation and interim latent image restoration. Secondly, we combine the reliable structures with priors of the blur kernel, such as sparsity and continuity, by a two-step method with which noise can be removed during iterations of the estimation to improve the precision of the estimated blur kernel. Finally, we use a MR-based Wiener filter as the non-blind deconvolution algorithm to restore the final latent image. Experimental results demonstrate that our algorithm can restore large blur images with rich, small details effectively.
Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, China. yangfs_ioe@163.com.|Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China. yangfs_ioe@163.com.|University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100039, China. yangfs_ioe@163.com.
Fasheng
F
Yang
Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, China. huangym@ioe.ac.cn.|Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China. huangym@ioe.ac.cn.
Yongmei
Y
Huang
Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, China. luo.yihan@foxmail.com.|Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China. luo.yihan@foxmail.com.
Yihan
Y
Luo
Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, China. icecliff@126.com.|Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China. icecliff@126.com.|University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100039, China. icecliff@126.com.
Lixing
L
Li
Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, China. zkygds@126.com.|Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China. zkygds@126.com.|University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100039, China. zkygds@126.com.
Hongwei
H
Li
blind image restoration; blur kernel estimation; edge selection; image sensor signal processing; motion deblurring