Method and apparatus for adaptive multiple-dimensional signal sequences encoding/decoding
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United States of America Patent
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Dec 30, 2008
Grant Date -
Jan 20, 2005
app pub date -
Jun 14, 2004
filing date -
Jun 23, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hybrid block matching prediction and transform based n dimensional signal sequence encoder, including an encoder motion estimator, having a cost function. A first embodiment includes an entropy-based cost function. A second embodiment includes a fast block matching search (motion estimation) method to learn the results from neighboring blocks and perform a large range search with only a small number of points to visit. A third embodiment includes a method to dynamically adjust the cost function parameters and other selected coding control parameters based on encoder outputs to optimize the quality and performance of the encoder. A fourth embodiment includes a method to enable exploring and rapid processing of fractional grid points for n dimensional block matching search (motion estimation). A fifth embodiment includes a hybrid block matching prediction and transform-based n dimensional signal sequence decoder.
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