Accession Number : ADA550706


Title :   An l1-TV Algorithm for Deconvolution with Salt and Pepper Noise


Descriptive Note : Conference paper


Corporate Author : LOS ALAMOS NATIONAL LAB NM


Personal Author(s) : Wohlberg, Brendt ; Rodriguez, Paul


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a550706.pdf


Report Date : Apr 2009


Pagination or Media Count : 5


Abstract : There has recently been considerable interest in applying Total Variation regularization with an l1 data fidelity term to the denoising of images subject to salt and pepper noise, but the extension of this formulation to more general problems, such as deconvolution, has received little attention. We consider this problem, comparing the performance of l1- TV deconvolution, computed via our Iteratively Reweighted Norm algorithm, with an alternative variational approach based on Mumford-Shah regularization. The l1-TV deconvolution method is found to have a significant advantage in reconstruction quality, with comparable computational cost.


Descriptors :   *ALGORITHMS , COMPUTATIONS , FORMULATIONS , IMAGE RESTORATION , IMPULSE NOISE


Subject Categories : Numerical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE