发明名称 |
METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE |
摘要 |
Provided are a method and apparatus for encoding an image capable of improving compression efficiency of the image by compensating for a loss due to quantization of a residual block in the frequency domain, and a method and apparatus for decoding the image. The method of encoding an image includes: generating a prediction macro block for a current macro block; generating a first residual block which is a difference between the prediction macro block and the current macro block; generating a compensation residual block by compensating for a quantization loss of the first residual block in the frequency domain; compensating for the prediction macro block by adding the compensation residual block and the prediction macro block.
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申请公布号 |
US2009225833(A1) |
申请公布日期 |
2009.09.10 |
申请号 |
US20090396582 |
申请日期 |
2009.03.03 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
HAN WOO-JIN;KIM DUCK-YEON |
分类号 |
H04N7/32 |
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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