Please use this identifier to cite or link to this item: https://rda.sliit.lk/handle/123456789/1935
Title: Analysis and performance of CMA blind deconvolution for image restoration
Authors: Samarasinghe, P
Kennedy, R. A
Keywords: Analysis
performance
CMA blind deconvolution
image restoration
Issue Date: Sep-2015
Publisher: Wiley Online Library
Series/Report no.: International Journal of Adaptive Control and Signal Processing;Vol 29 Issue 9 Pages 1135-1151
Abstract: In this paper we study the applicability of classical blind deconvolution methods such as constant modulus algorithm (CMA) for blind adaptive image restoration. The requirements such as the source to be white, uniformly distributed and zero mean, which yield satisfactory convergence in the data communication application context, are revisited in the image restoration context, where a linear deblur kernel needs to be blindly adapted to compensate for an unknown image blur kernel with the objective to recover a source ground truth image. Through analysis and performance studies, we show that the performance of CMA is adversely affected by the intrinsic spatial correlation of natural images and by any deviation of their distribution from being platykurtic. We also show that decorrelation techniques designed to overcome spatial correlation cannot be effectively applied to rectify CMA performance for blind adaptive image restoration
URI: http://rda.sliit.lk/handle/123456789/1935
ISSN: 1099-1115
Appears in Collections:Research Papers - SLIIT Staff Publications
Research Publications -Dept of Information Technology



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