APPARATUS AND METHOD FOR IN-LOOP FILTERING BASED ON LARGEST CODING UNIT FOR REDUCING EXTERNAL MEMORY ACCESS BANDWIDTH
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United States of America Patent
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Issued Date -
Sep 25, 2014
app pub date -
Nov 13, 2013
filing date -
Mar 25, 2013
priority date (Note) -
Abandoned
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Abstract
An apparatus and method for in-loop filtering based on a largest coding unit (LCU) to reduce an external memory access bandwidth. An in-loop filter may include an external memory to store decoded frames, an internal memory to store pixels in use for deblocking filtering and sample adaptive offset filtering, a horizontal deblocking filter to perform deblocking filtering on input pixels in a horizontal direction with respect to vertical edge boundaries within an input area, a vertical deblocking filter to perform deblocking filtering in a vertical direction with respect to horizontal edge boundaries within the input area, and a sample adaptive offset filter to perform sample adaptive offset filtering.
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