NDLI: De-blurring wireless capsule endoscopy images by total variation minimization

Content Provider	IEEE Xplore Digital Library
Author	Haiying Liu Lu, W.-S. Meng, M.Q.-H.
Copyright Year	2011
Description	Author affiliation: School of Control Science and Engineering, Shandong University, Jinan, China (Haiying Liu; Meng, M.Q.-H.) \|\| Dept. of Electrical and Computer Engineering, University of Victoria, Victoria, Canada (Lu, W.-S.)
Abstract	Wireless capsule endoscopy (WCE) finds wide applications in diagnosing diseases in human intestine on account of its convenience and non-invasiveness to the patients. Due to complicated environment of the intestine and intrinsic restrictions of the equipment in terms of image acquisition and transmission, however, raw WCE images are often corrupted by noise and degraded by within-channel or cross-channel blurs. In this paper, we present a total variation (TV) minimization framework for deblurring within-channel blurs for color WCE images. Specifically, the monotone fast iterative shrinkage/thresholding technique combined with the fast gradient projection algorithm, proposed recently by Beck and Teboulle, is extended to deal with multichannel images. In addition, the proposed algorithm is enhanced by incorporating a bisection technique to effectively identify a near optimal value for the regularization parameter of the TV-Frobenius objective function. Experimental results are presented to demonstrate the performance of the proposed algorithm.
Starting Page	102
Ending Page	106
File Size	179241
Page Count	5
File Format	PDF
ISBN	9781457702525
ISSN	21545952
e-ISBN	9781457702532
e-ISBN	9781457702518
DOI	10.1109/PACRIM.2011.6032875
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-23
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image restoration Minimization Gold Equations TV Image color analysis Color
Content Type	Text
Resource Type	Article

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