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Polyphase downsampling based multiple description image coding using optimal filtering with flexible redundancy insertion

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5 Author(s)
Caglar Ates ; Kocaeli University Laboratory of Image and Signal Processing, Electronics and Telecommunications Eng., University of Kocaeli, 41040, Turkey ; Yilmaz Urgun ; Begum Demir ; Oguzhan Urhan
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In this paper, a novel multiple description image coding scheme is proposed to facilitate the transmission of images over unreliable networks. The target is to minimize the received image distortion over error prone channels. The proposed method is based on adding redundancy to multiple descriptions coding structure to increase correlation between descriptions. The novelty of the paper is that optimal reconstruction filter coefficients are obtained, that will be used to combine the multiple descriptions in an optimal way, based on least squares minimization of the reconstruction error. It is shown that the proposed method provides better results compared to existing approaches in the literature.

Published in:

Signals and Electronic Systems, 2008. ICSES '08. International Conference on

Date of Conference:

14-17 Sept. 2008