error concealment
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Joined: Sep 2010
18-09-2010, 12:43 PM

Hi I am Jahnavi.I want to do project and implimentation in image processing. I have selected the main topic like error concealment. I need some matlab programs for that related topic. I em trying to implement IEEE paper published in 2006, Adaptive MAP Error Concealment for Dispersively Packetized Wavelet-Coded Images.

Abstract—In this paper, we present an adaptive maximum a posteriori (MAP) rror concealment algorithm for dispersively packetized wavelet-coded images. We model the subbands of a waveletcoded image as Markov random fields, and use the edge characteristics in a particular subband, and regularity properties of subband/ wavelet samples across scales, to adapt the potential functions locally. The resulting adaptive MAP estimation gives PSNR advantages of up to 0.7 dB compared to the competing algorithms. The advantage is most evident near the edges, which helps improve the visual quality of the reconstructed images.
Index Terms—Dispersive packetization, error concealment,
maximum a posteriori (MAP) estimation, subband/wavelet image

For this i need some related matlab programs. Please give reply as soon as possible.
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18-09-2010, 03:45 PM

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