发明名称 |
Video compression |
摘要 |
An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation (14, 18) for use in a subsequent coding operation (22). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.
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申请公布号 |
US6285716(B1) |
申请公布日期 |
2001.09.04 |
申请号 |
US19960767448 |
申请日期 |
1996.12.16 |
申请人 |
SNELL & WILCOX LIMITED;BRITISH BROADCASTING CORPORATION |
发明人 |
KNEE MICHAEL JAMES;DEVLIN BRUCE FAIRBAIRN;WELLS NICHOLAS DOMINIC |
分类号 |
H04N7/32;G06T9/00;H03M7/36;H04N7/26;H04N7/50;(IPC1-7):H04N7/36 |
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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