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

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3 Author(s)
Imamura, K. ; Div. of Electr. Eng. & Comput. Sci., Kanazawa Univ. ; Koba, Y. ; Hashimoto, H.

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:

Multimedia and Expo, 2006 IEEE International Conference on

Date of Conference:

9-12 July 2006