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. |
申请公布号 |
EP2312856(A4) |
申请公布日期 |
2011.12.28 |
申请号 |
EP20090794384 |
申请日期 |
2009.07.03 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
SEKIGUCHI, SHUNICHI;YAMAGISHI, SHUICHI;ITANI, YUSUKE;YAMADA, YOSHIHISA;KATO, YOSHIAKI;ASAI, KOHTARO;MURAKAMI, TOKUMICHI |
分类号 |
H04N7/32;H04N7/26;H04N7/50 |
主分类号 |
H04N7/32 |
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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