发明名称 |
Video transcoding of scalable multi-layer videos to single layer video |
摘要 |
A method transcodes a compressed multi-layer video bitstream that includes a base layer bitstream and an enhancement layer bitstream. The base and enhancement layers are first partially decoded, and then the partially decoded signals are combined with a motion compensated signal yielding a combined signal. The combined signal is quantized into an output signal according to a quantization parameter, and the output signal is variable length encoded as a single layer bitstream. In a preprocessing step, the enhancement layer can be truncated according to rate control constraint, and the same constraints can also be used during the quantization.
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申请公布号 |
US2003202579(A1) |
申请公布日期 |
2003.10.30 |
申请号 |
US20020128758 |
申请日期 |
2002.04.24 |
申请人 |
LIN YAO-CHUNG;WANG CHUNG-NENG;CHIANG TIHAO;VETRO ANTHONY;SUN HUIFANG |
发明人 |
LIN YAO-CHUNG;WANG CHUNG-NENG;CHIANG TIHAO;VETRO ANTHONY;SUN HUIFANG |
分类号 |
H04N7/26;H04N7/50;(IPC1-7):H04N7/12 |
主分类号 |
H04N7/26 |
代理机构 |
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