MOTION ESTIMATION AND COMPENSATION PROCESS AND DEVICE
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United States of America Patent
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Issued Date -
Aug 4, 2011
app pub date -
Nov 12, 2008
filing date -
Nov 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In the motion estimation and compensation process for video frames, blocks O of pixels are considered. A number k of bit planes in a block O in a video frame F are compared with blocks O.sup.R in reference frames (F.sup.R). The best matching block (O.sup.RM) is determined in the reference frames (F.sup.R). Subsequently, a weight value (W.sub.x.sup.ij) is calculated for the best matching block (O.sup.RM) based on the ratio of valid pixels therein. The residual pixel values (V.sub.x.sup.ij) extracted from the best matching block (O.sup.RM) and corresponding weight values (W.sub.x.sup.ij) are stored in a pixel prediction array (120). The pixel array is used for motion compensation of at least the luminance component of valid pixels. Invalid pixels are reconstructed from surrounding pixel values.
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