Efficient apparatus for fast video edge filtering
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
Apr 29, 2009
filing date -
Apr 29, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus are provided for video edge filtering in which a buffer stores pixels required for edge filtering from a plurality of macroblocks. An input tile buffering unit comprising a plurality of dual port tile buffers receives tile portions of each macroblock. These are transposed selectively and provided to a programmable edge filter which performs one dimensional edge filtering on the tile portions. The filtered edges are then selectively transposed in a opposite manner to the first transpose unit and provided to an output buffer as well as provided back to the dual port tile buffers for use in further filtering.
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