Efficient image denoising using side information

S. Sandeep Pradhan; Kannan Ramchandran

doi:10.1117/12.383027

19 April 2000 Efficient image denoising using side information

S. Sandeep Pradhan, Kannan Ramchandran

Proceedings Volume 3974, Image and Video Communications and Processing 2000; (2000) https://doi.org/10.1117/12.383027
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

Recently a constructive practical framework for the problem of source coding with side information was proposed. In this work we address the problem of denoising of images with side information at the decoder. We propose this with the addition of a side digital channel and decode the digital bits with the help of a noisy image (side information) at the decoder. The encoder needs to compress the image using the knowledge that the decoder has access to a noisy version of the image. We propose a rate allocation technique to optimally allocate the rate among the wavelet coefficients of the image. With a rate of transmission of 0.8175 bits/source sample, we get a gain of 1.665 dB over the conventional source coding techniques. This is achieved by modifying only 9% of the wavelet coefficients in the conventional source coder.

Citation Download Citation

S. Sandeep Pradhan and Kannan Ramchandran "Efficient image denoising using side information", Proc. SPIE 3974, Image and Video Communications and Processing 2000, (19 April 2000); https://doi.org/10.1117/12.383027

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