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Image Restoration Using Particle Filters By Improving The Scale Of Texture With MRF

Anna Saro Vijendran, Bobby Lukose

Pages - 306 - 316 | Revised - 15-09-2012 | Published - 24-10-2012

Published in International Journal of Image Processing (IJIP)

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KEYWORDS

Canny, Edge Sharpener, Edge Detection

ABSTRACT

Traditional techniques are based on restoring image values based on local smoothness constraints within fixed bandwidth windows where image structure is not considered. Common problem for such methods is how to choose the most appropriate bandwidth and the most suitable set of neighboring pixels to guide the reconstruction process. The present work proposes a denoising technique based on particle filtering using MRF (Markov Random Field). It is an automatic technique to capture the scale of texture. The contribution of our method is the selection of an appropriate window in the image domain. For this we first construct a set containing all occurrences then the conditional pdf can be estimated with a histogram of all center pixel values. Particle evolution is controlled by the image structure leading to a filtering window adapted to the image content. Our method explores multiple neighbors’ sets (or hypotheses) that can be used for pixel denoising, through a particle filtering approach. This technique associates weights for each hypothesis according to its relevance and its contribution in the denoising process.

1 | Lukose, B., & Vijendran, A. S. (2014). Image Noise Removal Using Rao-Blackwellized Particle Filter with Maximum Likelihood Estimation. International Review on Computers and Software (IRECOS), 9(5), 784-792. |

2 | Vijendran, A. S., & Lukose, B. (2013). An Improved Image Denoising Technique for Digital Mobile Camera Images. International Journal of Advanced Computer Research, 3(3), 184. |

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Dr. Anna Saro Vijendran

S.N.R Sons College - India

saroviji@rediffmail.com

Mr. Bobby Lukose

Hindusthan College of Arts & Science - India