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Selective macroblock level switching for model-based coded video

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3 Author(s)
Woods, J.C. ; Dept. of Electron. Syst. Eng., Essex Univ., Colchester ; Ramanan, S. ; Pearson, D.E.

Previous switched model-based coders have employed switching techniques at a high level, switching the entire frame between an H.261 coded image and a model-based image according to a bitrate/quality metric. The performance of a new scheme, in which the switching takes place in selected regions, is reported. Subjective quality and PSNR are improved, particularly for large rotational or translational motion

Published in:

Electronics Letters  (Volume:35 ,  Issue: 5 )