Apparatus for removing a blocking phenomenon in a block using a horizontal filter strength and then a vertical filter strength
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United States of America Patent
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Jul 24, 2012
Grant Date -
Feb 14, 2008
app pub date -
Oct 3, 2007
filing date -
Jun 15, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, the apparatus includes a decoder configured to obtain a block type of the second block and the third block. The second block is adjacent to the first block horizontally, and the third block is adjacent to the first block vertically. The decoder is configured to determine whether the second and third blocks have non-zero transform coefficient information if the block type of the second and third blocks, respectively, are not an intra-coded block. A horizontal filter strength value and vertical filter strength values are determined by the decoder based on the above steps. The blocking phenomenon in the first block is removed by the decoder according to the horizontal filter strength value firstly, then vertical filter strength value secondly.
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