Invention Grant
- Patent Title: Compressing and decompressing multiple, layered, video streams employing multi-directional spatial encoding
- Patent Title (中): 使用多向空间编码压缩和解压缩多个分层的视频流
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Application No.: US11182144Application Date: 2005-07-15
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Publication No.: US08098728B2Publication Date: 2012-01-17
- Inventor: Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
- Applicant: Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Lyon & Harr, LLP
- Agent Richard T. Lyon
- Main IPC: H04B1/66
- IPC: H04B1/66 ; H04N7/12 ; H04N11/02 ; H04N11/04

Abstract:
A process for compressing and decompressing non-keyframes in sequential sets of contemporaneous video frames making up multiple video streams where the video frames in a set depict substantially the same scene from different viewpoints. Each set of contemporaneous video frames has a plurality frames designated as keyframes with the remaining being non-keyframes. In one embodiment, the non-keyframes are compressed using a multi-directional spatial prediction technique. In another embodiment, the non-keyframes of each set of contemporaneous video frames are compressed using a combined chaining and spatial prediction compression technique. The spatial prediction compression technique employed can be a single direction technique where just one reference frame, and so one chain, is used to predict each non-keyframe, or it can be a multi-directional technique where two or more reference frames, and so chains, are used to predict each non-keyframe.
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