Post-filter for deblocking and deringing of video data
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United States of America Patent
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Apr 22, 2008
Grant Date -
Nov 18, 2004
app pub date -
May 13, 2003
filing date -
May 13, 2003
priority date (Note) -
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Abstract
An implementation of an MPEG-4 compliant post-filter for image data, which performs deblocking and deringing post-filtering on decoded video data. The post-filter comprises two independent processing units, one for horizontal deblocking and the other for vertical deblocking and deringing, each processing unit in communication with a memory system, which can include DRAM. The post-filter further comprises a local memory, which can be SRAM, for high speed access to data being processed by the vertical deblocking and deringing filter, without additional accesses to the memory system. Further, horizontal deblocking and vertical deblocking and deringing functions can be performed concurrently in a pipe-lined fashion.
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