发明名称 |
IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD |
摘要 |
Provided are a device and a method for efficiently compressing information by performing improved removal of signal correlations according to statistical and local properties of a video signal in a 4:4:4 format which is to be encoded. The device includes: a prediction unit for determining, for each color component, a motion prediction mode exhibiting a highest efficiency among a plurality of motion prediction modes, and detecting a motion vector corresponding to the determined motion prediction mode, to thereby perform output; and a variable-length encoding unit for determining, when performing arithmetic coding on the motion prediction mode of the each color component, an occurrence probability of a value of the motion prediction mode of the each color component based on a motion prediction mode selected in a spatially-adjacent unit region and a motion prediction mode selected in a temporally-adjacent unit region, to thereby perform the arithmetic coding.
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申请公布号 |
US2011129016(A1) |
申请公布日期 |
2011.06.02 |
申请号 |
US200913003431 |
申请日期 |
2009.07.03 |
申请人 |
SEKIGUCHI SHUNICHI;YAMAGISHI SHUICHI;ITANI YUSUKE;YAMADA YOSHIHISA;KATO YOSHIAKI;ASAI KOHTARO;MURAKAMI TOKUMICHI |
发明人 |
SEKIGUCHI SHUNICHI;YAMAGISHI SHUICHI;ITANI YUSUKE;YAMADA YOSHIHISA;KATO YOSHIAKI;ASAI KOHTARO;MURAKAMI TOKUMICHI |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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