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Backward Adaptive Pixel-based Fast Predictive Motion Estimation

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3 Author(s)
Xiaolin Chen ; Dept. of Electr. & Electron. Eng., Univ. of Bristol, Bristol ; Canagarajah, N. ; Nunez-Yanez, J.L.

This letter presents a novel backward adaptive pixel-based fast predictive motion estimation (BAPME) scheme for lossless video compression. Unlike the widely used block-matching motion estimation techniques, this method predicts the motion on a pixel-by-pixel basis by comparing a group of past observed pixels in two adjacent frames, eliminating the need of transmitting side information. Combined with prediction and a fast search technique, the proposed algorithm achieves better entropy results and significant reduction in computation than pixel-based full search for a set of standard test sequences. Experimental results also suggest that BAPME is superior to block-based full search in terms of speed and zero-order entropy.

Published in:

Signal Processing Letters, IEEE  (Volume:16 ,  Issue: 5 )

Date of Publication:

May 2009

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