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Performance Analysis of Weighted Encoding with Sparse Nonlocal Regularization and Spatially Adaptive Iterative Filtering Boost Denoising: A Review

Journal: International Journal of Scientific Engineering and Technology (IJSET) (Vol.4, No. 8)

Publication Date:

Authors : ; ;

Page : 451-456

Keywords : Image denoising; pixel aggregation; risk estimator; spatial domain filter.;

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Abstract

In this paper, we compare the spatially adaptive iterative filtering (SAIF) approach with Weighted Encoding with Sparse Nonlocal Regularization (WESNR) to maintain the denoising strength locally for any spatial domain method. These approaches has ability of filtering local image content iteratively using the given base filter, and the type of iteration and the iteration number are automatically optimized with respect to estimated risk (i.e., mean squared error). Experimental result shows that approx. 7% enhancement in the SNR of SAIF method as compared to the WESNR method.

Last modified: 2015-08-12 20:20:14