发明名称 |
Video-signal layered coding and decoding methods, apparatuses, and programs |
摘要 |
A video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. An input video signal is spatially scaled down into a resolution-lowered video signal that exhibits a resolution lower than the video signal. The resolution-lowered video signal is encoded with a decoding procedure to obtain first coded data and a decoded signal. The decoded signal is spatially scaled up through a high-resolution procedure with reference to the input video signal so that the decoded signal has a smaller error with respect to the input video signal, to obtain a high-resolution scaled-up video signal. The input video signal is encoded through inter-spatial resolution prediction using the high-resolution scaled-up video signal as a predictive signal, to obtain second coded data that exhibits a resolution higher than the resolution-lowered video signal.
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申请公布号 |
US8149914(B2) |
申请公布日期 |
2012.04.03 |
申请号 |
US20060613978 |
申请日期 |
2006.12.20 |
申请人 |
SHIMAUCHI KAZUHIRO;SAKAZUME SATORU;KUMAKURA TORU;UEDA MOTOHARU;VICTOR COMPANY OF JAPAN, LTD., |
发明人 |
SHIMAUCHI KAZUHIRO;SAKAZUME SATORU;KUMAKURA TORU;UEDA MOTOHARU |
分类号 |
H04N7/12 |
主分类号 |
H04N7/12 |
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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