发明名称 |
Image information encoding method and encoder, and image information decoding method and decoder |
摘要 |
It is an object of the present invention to provide a method and apparatus capable of correcting a phase shift of a color-difference signal, caused by a motion estimation and compensation, to improve the quality of output image of compressed image information. With the present invention, image information is compression-encoded by breaking (38) an input image signal in a format of 4 : 2 : 0 including a luma signal and chroma signal into macro-blocks and making motion estimation and compensation of the input image signal in units of a macro-block, wherein, when a reference field has a different parity from a current field, the phase of the chroma signal is shifted by 1/4 of the value mv of the vertical component in motion vector information. |
申请公布号 |
EP2348737(A2) |
申请公布日期 |
2011.07.27 |
申请号 |
EP20110164449 |
申请日期 |
2002.11.29 |
申请人 |
SONY CORPORATION |
发明人 |
SATO, KAZUSHI;SUNOHARA, OSAMU;SUZUKI, TERUHIKO;KUHN, PETER;YAGASAKI, YOICHI |
分类号 |
H04N11/04;H04N5/14;H04N5/44;H04N7/50 |
主分类号 |
H04N11/04 |
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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