发明名称 |
METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING ROTATIONAL TRANSFORM |
摘要 |
Disclosed are a method and apparatus for encoding and decoding an image. The image encoding method includes: generating a first frequency coefficient matrix by performing spatial transform (e.g. discrete cosine transform (DCT) on a current block; determining an angle parameter based on whether the current block is intra or inter predicted; generating a second frequency coefficient matrix by performing a partial switch between at least one of rows and columns of the first frequency coefficient matrix based on the determined angle parameter; and encoding the second frequency coefficient matrix and information about the angle parameter. |
申请公布号 |
EP2510691(A4) |
申请公布日期 |
2014.06.04 |
申请号 |
EP20100836220 |
申请日期 |
2010.12.09 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
ALSHINA, ELENA;ALSHIN, ALEXANDER;SEREGIN, VADIM |
分类号 |
H04N19/122;H04N19/157;H04N19/176;H04N19/61 |
主分类号 |
H04N19/122 |
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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