发明名称 |
Video predictive coding apparatus and method |
摘要 |
A predictive coding in a video coding system, which can enhance the coding efficiency by predictively coding DC coefficients of a block to be coded using DC gradients of a plurality of previously coded neighboring blocks. The predictive coefficient is selected according to the difference between the quantized DC gradients (coefficients) of a plurality of neighboring blocks of the block to be coded, and the DC coefficient of the block to be coded is predictively coded by the selected predictive coefficient, so that the video signal information transmitted to a decoder, thereby enhancing the coding efficiency. <IMAGE> |
申请公布号 |
EP0833520(A3) |
申请公布日期 |
1999.09.15 |
申请号 |
EP19970116987 |
申请日期 |
1997.09.30 |
申请人 |
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. |
发明人 |
LEE, SANG-HEE;KIM, JAE-KYUN;PARK, CHEL-SOO;MOON, JOO-HEE |
分类号 |
H04N7/24;G06T9/00;H04N19/105;H04N19/134;H04N19/136;H04N19/14;H04N19/176;H04N19/186;H04N19/196;H04N19/20;H04N19/21;H04N19/423;H04N19/46;H04N19/50;H04N19/51;H04N19/563;H04N19/59;H04N19/60;H04N19/61;H04N19/625;H04N19/70 |
主分类号 |
H04N7/24 |
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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