Fast search method for motion estimation
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United States of America Patent
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May 13, 2003
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N/A
app pub date -
Jun 23, 2000
filing date -
Jun 23, 2000
priority date (Note) -
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Abstract
A video compression method of estimating a motion vector representative of a difference between a reference frame and a current frame is described. Typically, both the reference frame and the current frame include background and foreground data. In the method a block of the current frame is selected for analysis, and a determination is made whether the block selected is a foreground block or a background block. If the block is a foreground block, then it is compared with predetermined search points in the reference frame. On the other hand, if the block is a background block, it is compared with predetermined search points in only a portion of the reference frame.
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