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

Report Date:

2009-04-01

Pagination or Media Count:

5.0

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