Video coding system
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United States of America Patent
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app pub date -
Oct 8, 2002
filing date -
Sep 20, 1996
priority date (Note) -
Abandoned
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Abstract
A motion estimation system for a video coder is disclosed. The system comprises an input for a video image (6) to be coded. It also comprises a series of motion estimators (2, 3) of varying complexity, for estimating a motion vector field between the received image (6) and a reference image (5). The subsequent motion estimator in the series is selected by a control means (4) if a prediction error associated with the motion vector field estimated by the currently selected motion estimator exceeds a predetermined threshold.
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