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US 7,072,399 B2Granted
Motion estimation method and system for MPEG video streams
AssigneeLSI Logic Corporation
InventorsLowell Winger, Simon Booth, Michael Gallant, Eric Pearson
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Abstract
The present invention discloses a motion estimation method for MPEG video sequences. The method makes use of a global motion estimation algorithm to determine a set of dominant motion components. A simultaneous Full Search Block Matching (FSBM) search is conducted utilizing each dominant component for every block in a current frame. The results of each FSBM search are then compared to determine the best motion vector.
Claims20
A method for motion estimation comprising the steps of:
- a) acquiring pixel data for a current frame and pixel data for a reference frame;
- b) generating a plurality of dominant motion component offset vectors;
- c) searching within a plurality of search windows, one search window associated with each dominant motion component offset vector, for a block in a current frame;
- d) determining a best result from step c);
- and
- e) repeating steps c) and d) for each block in said current frame.
3 more elements
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