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https://ieeexplore.ieee.org/abstract/document/6587925/

Research Authors
MF Fahmy, GM Abdel Raheem, US Mohammed, F Fahmy
Research Member
Research Department
Research Year
2013
Research Journal
2013 30th National Radio Science Conference (NRSC)
Research Publisher
IEEE
Research Vol
NULL
Research Rank
3
Research_Pages
280-287
Research Website
NULL
Research Abstract

Total variation (TV) regularization is popular in image restoration and reconstruction due to its ability to preserve image edges. This paper, describes a new total variation based de-noising scheme. The proposed technique optimally finds the threshold level of the noisy image wavelet decomposition that minimizes the energy of the error between the restored and the noisy image. The minimization algorithm is regularized by including 1st as well as 2nd order derivatives effects of the noisy image, into the minimization scheme. Next, the problem of blind deconvolution of noisy images is addressed. First, the order of the blurring Point Spread Function (PSF), is accurately estimated using a de-noised version of the noisy blurred image. Then, the deconvolution algorithm is modified by including the effects of the 1 st as well as 2nd order derivatives of the blurred noisy images into the image update algorithm. Simulation …