发明名称 |
INTERFRAME PREDICTIVE CODING/DECODING SYSTEM FOR VARYING INTERVAL BETWEEN INDEPENDENT FRAMES |
摘要 |
An efficient coding and decoding system is provided for a moving picture signal having independent and dependent frames. An interval between independent frames is varied in accordance with frame difference or amount of coded data. Predictive error signals are produced by subtracting predictive picture signals based on two of the frames, the interval therebetween thus varied, from picture signals of dependent frames. The predictive error picture signals and picture signals of the independent frames are then coded to produce a coded moving picture signal. When decoding, decoded predictive picture signals and predictive error picture signals are added to each other to reproduce the picture signals of the dependent frames. Decoded picture signals of the independent frames and the reproduced picture signals of the dependent frames are serially outputted to reproduce the original moving picture signal.
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申请公布号 |
US5103307(A) |
申请公布日期 |
1992.04.07 |
申请号 |
US19910643564 |
申请日期 |
1991.01.18 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
SUGIYAMA, KENJI |
分类号 |
G06T9/00;H03M7/30;H04N7/26;H04N7/32;H04N7/36;H04N7/46 |
主分类号 |
G06T9/00 |
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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