MOTION COMPENSATION IN DIGITAL VIDEO
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United States of America Patent
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Issued Date -
Oct 11, 2007
app pub date -
Apr 9, 2007
filing date -
Apr 10, 2006
priority date (Note) -
Abandoned
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Abstract
Embodiments of the invention include a system directed to generating motion vectors in digital video by using multiple phases in sequence. In a first phase, a match signature in the frequency domain is evaluated to find one or more minimum motion vector candidates for a particular macroblock in video. In a second phase, the vector candidates are further refined using smaller-sized portions of the macroblock and fractional motion vectors to determine a small list of minimum vector choices for each macroblock that maintain vector integrity within the vector field of the frame and across nearby frames.
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