Invention Grant
US08542735B2 Method and device for coding a scalable video stream, a data stream, and an associated decoding method and device
失效
用于对可伸缩视频流进行编码的方法和设备，数据流以及相关联的解码方法和设备
- Patent Title: Method and device for coding a scalable video stream, a data stream, and an associated decoding method and device
- Patent Title (中): 用于对可伸缩视频流进行编码的方法和设备，数据流以及相关联的解码方法和设备
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Application No.: US12158245Application Date: 2006-12-19
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Publication No.: US08542735B2Publication Date: 2013-09-24
- Inventor: Xavier Henocq , Fabrice Le Leannec
- Applicant: Xavier Henocq , Fabrice Le Leannec
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: FR0512972 20051220
- International Application: PCT/IB2006/004091 WO 20061219
- International Announcement: WO2007/072228 WO 20070628
- Main IPC: H04N7/12
- IPC: H04N7/12
Abstract:
A video sequence is coded in the form of a base level and an refinement level. A group of pictures of the base level comprises intra coded or mono-predicted end images (I,P) and bi-predicted images (B1, B2, B3), the refinement level comprises at least one image (E2, E4, . . . , E16) with no temporal correspondent in the base level. Use is made of predictive coding of said image with no temporal correspondent (E2, E4, . . . , E16) by making reference to a plurality of images, each image of said plurality being an image of the refinement level with no temporal correspondent in the base level (E4, E8, E12, E14) or an image of the refinement level (E1, E17) corresponding temporally to an end image (I1P).
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