发明授权
- 专利标题: Compressing and decompressing multiple, layered, video streams employing multi-directional spatial encoding
- 专利标题(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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申请号: US11182144申请日: 2005-07-15
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公开(公告)号: US08098728B2公开(公告)日: 2012-01-17
- 发明人: Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
- 申请人: Simon Winder , Matthew Uyttendaele , Charles Zitnick, III , Richard Szeliski , Sing Bing Kang
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理机构: Lyon & Harr, LLP
- 代理商 Richard T. Lyon
- 主分类号: H04B1/66
- IPC分类号: H04B1/66 ; H04N7/12 ; H04N11/02 ; H04N11/04
摘要:
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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