Motion estimation apparatus and method with optimal computational complexity
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United States of America Patent
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Issued Date -
Oct 20, 2005
app pub date -
Mar 4, 2005
filing date -
Apr 3, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed are a motion estimation (ME) apparatus and method using a fast search algorithm for a motion vector (MV) that can significantly reduce the number of computations by making use of the fast search algorithm rather than a conventional full search algorithm and that can allow a user to set a computational complexity level. The fast MV search algorithm causes image degradation of approximately 0.5 dB at most, but can significantly reduce the number of computations. As the number of computations of an ME circuit can be adjusted by input computational complexity parameters, the efficiency of a pipeline structure in which texture encoding and ME are performed in a parallel fashion can be maximized.
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