Invention Grant
US08149914B2 Video-signal layered coding and decoding methods, apparatuses, and programs
有权
视频信号分层编码和解码方法，设备和程序
- Patent Title: Video-signal layered coding and decoding methods, apparatuses, and programs
- Patent Title (中): 视频信号分层编码和解码方法，设备和程序
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Application No.: US11613978Application Date: 2006-12-20
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Publication No.: US08149914B2Publication Date: 2012-04-03
- Inventor: Kazuhiro Shimauchi , Satoru Sakazume , Toru Kumakura , Motoharu Ueda
- Applicant: Kazuhiro Shimauchi , Satoru Sakazume , Toru Kumakura , Motoharu Ueda
- Applicant Address: JP Yokohama-Shi
- Assignee: Victor Company of Japan, Ltd.,
- Current Assignee: Victor Company of Japan, Ltd.,
- Current Assignee Address: JP Yokohama-Shi
- Agency: Jeffer Mangels Butler & Mitchell LLP
- Priority: JP2005-369544 20051222
- Main IPC: H04N7/12
- IPC: H04N7/12
Abstract:
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.
Public/Granted literature
- US20070147494A1 VIDEO-SIGNAL LAYERED CODING AND DECODING METHODS, APPARATUSES, AND PROGRAMS Public/Granted day:2007-06-28
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