Bidirectional predicted pictures or video object planes for efficient and flexible coding
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United States of America Patent
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Jun 26, 2012
Grant Date -
Aug 27, 2009
app pub date -
May 6, 2009
filing date -
Mar 27, 1997
priority date (Note) -
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Abstract
A method is provided for decoding a bit stream representing an image that has been encoded The method includes the steps of: performing an entropy decoding of the bit stream to form a plurality of transform coefficients and a plurality of motion vectors; performing an inverse transformation on the plurality of transform coefficients to form a plurality of error blocks; determining a plurality of predicted blocks based on bidirectional motion estimation that employs the motion vectors, wherein the bidirectional motion estimation includes a direct prediction mode and a second prediction mode; and, adding the plurality of error blocks to the plurality of predicted blocks to form the image. The second prediction mode may include forward, backward, and interpolated prediction modes.
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