Invention Grant
- Patent Title: Method and system for scalable bitstream extraction
- Patent Title (中): 用于可缩放比特率提取的方法和系统
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Application No.: US11752567Application Date: 2007-05-23
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Publication No.: US08170094B2Publication Date: 2012-05-01
- Inventor: Mark R. Trandel , Aggelos K. Katsaggelos , Sevket D. Babacan , Shih-Ta Hsiang , Faisal Ishtiaq
- Applicant: Mark R. Trandel , Aggelos K. Katsaggelos , Sevket D. Babacan , Shih-Ta Hsiang , Faisal Ishtiaq
- Applicant Address: US IL Libertyville
- Assignee: Motorola Mobility, Inc.
- Current Assignee: Motorola Mobility, Inc.
- Current Assignee Address: US IL Libertyville
- Agent Pablo Meles; Sylvia Chen
- Main IPC: H04N7/24
- IPC: H04N7/24

Abstract:
A scalable video compression system (100) having an encoder (120), bit extractor (140), and decoder (160) for efficiently encoding and decoding a scalable embedded bitstream (130) at different video resolution, framerate, and video quality levels is provided. Bits can be extracted in order of refinement layer (136), followed by temporal level (132), followed by spatial layer (134), wherein each bit extracted provides an incremental improvement in video decoding quality. Bit extraction can be truncated at a position in the embedded bitstream corresponding to a maximum refinement layer, a maximum temporal level, and a maximum spatial layer. For a given refinement layer, bits are extracted from all spatial layers in a lower temporal level prior to extracting bits from spatial layers in a higher temporal level for prioritizing coding gain to increase video decoding quality, and prior to moving to a next refinement layer.
Public/Granted literature
- US20080130757A1 METHOD AND SYSTEM FOR SCALABLE BITSTREAM EXTRACTION Public/Granted day:2008-06-05
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