发明名称 |
IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND COMMUNICATION DEVICE |
摘要 |
<p>The motion compensation prediction using a virtual sample is used for detection of a motion vector in each area and the virtual sample accuracy is locally decided by relating it to the area size of each motion vector detection unit. For example, in the motion vector detection unit area of sizes 8 x 4, 4 x 8, 4 x 4 smaller than 8 x 8 MC, a virtual sample of half pixel accuracy is used, and in the motion vector detection unit area of 8 x 8 MC or above, a virtual sample of quarter pixel accuracy is used. Thus, it is possible to reduce the memory band width required for generating a virtual sample for each of the modes 8 x 4, 4 x 8, 4 x 4 MC and simplify the device.</p> |
申请公布号 |
WO2004008772(A1) |
申请公布日期 |
2004.01.22 |
申请号 |
WO2003JP07995 |
申请日期 |
2003.06.24 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA;SEKIGUCHI, SHUNICHI;YAMADA, YOSHIHISA;ASAI, KOHTARO |
发明人 |
SEKIGUCHI, SHUNICHI;YAMADA, YOSHIHISA;ASAI, KOHTARO |
分类号 |
H03M7/36;H04N7/12;H04N19/102;H04N19/103;H04N19/105;H04N19/115;H04N19/119;H04N19/126;H04N19/136;H04N19/137;H04N19/139;H04N19/152;H04N19/159;H04N19/172;H04N19/174;H04N19/176;H04N19/196;H04N19/423;H04N19/46;H04N19/463;H04N19/50;H04N19/503;H04N19/51;H04N19/513;H04N19/517;H04N19/52;H04N19/523;H04N19/543;H04N19/58;H04N19/60;H04N19/61;H04N19/70;H04N19/80;H04N19/91;(IPC1-7):H04N7/32 |
主分类号 |
H03M7/36 |
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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