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A Fast Matching Pursuits Algorithm using Sub-Band Decomposition of Video Signals

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3 Author(s)
Kousuke Imamura ; Kanazawa University, Division of Electrical Engineering and Computer Science, Graduate School of Natural Science and Technology, Kakuma-machi, Kanazawa, Ishikawa 920-1192 Japan. Tel: +81-76-234-4894, Fax: +81-76-234-4900. Email: ; Yoshimasa Koba ; Hideo Hashimoto

A high-efficiency video coding method using matching pursuits, which is a waveform coding technique, has recently been proposed. In this method, the motion compensated prediction error image is encoded by applying matching pursuits. In the present paper, we propose a matching pursuits coding method that encodes the sub-band images derived from motion compensated prediction error images. The complexity of the proposed method is reduced compared to the full-band matching pursuits because of lighter inner product computation due to reduction of both the resolution of the sub-band and the basis function length of the dictionary. We evaluated the coding performance and computational complexity of the proposed method via computer simulations

Published in:

2006 IEEE International Conference on Multimedia and Expo

Date of Conference:

9-12 July 2006