发明名称 |
METHOD AND DEVICE FOR ENCODING AND DECODING IMAGE |
摘要 |
A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a final correction value that is calculated by performing an arithmetic right shift by a binary digit 1 for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. Thus, the operational complexity during image encoding/decoding can be reduced. |
申请公布号 |
EP2806635(A4) |
申请公布日期 |
2015.12.02 |
申请号 |
EP20130738011 |
申请日期 |
2013.01.18 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM, HUI YONG;LEE, JIN HO;LIM, SUNG CHANG;CHOI, JIN SOO;KIM, JIN WOONG |
分类号 |
H04N19/196;H04N19/50;H04N19/105;H04N19/182;H04N19/513;H04N19/52;H04N19/593;H04N19/82 |
主分类号 |
H04N19/196 |
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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