发明授权
US07561620B2 System and process for compressing and decompressing multiple, layered, video streams employing spatial and temporal encoding
有权
用于使用空间和时间编码来压缩和解压缩多个分层的视频流的系统和过程
- 专利标题: System and process for compressing and decompressing multiple, layered, video streams employing spatial and temporal encoding
- 专利标题(中): 用于使用空间和时间编码来压缩和解压缩多个分层的视频流的系统和过程
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申请号: US10910077申请日: 2004-08-03
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公开(公告)号: US07561620B2公开(公告)日: 2009-07-14
- 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 ; H04N5/14 ; H04N9/64
摘要:
A system and process for compressing and decompressing multiple video streams depicting substantially the same dynamic scene from different viewpoints. Each frame in each contemporaneous set of video frames of the multiple streams is represented by at least a two layers—a main layer and a boundary layer. Compression of the main layers involves first designating one or more of these layers in each set of contemporaneous frames as keyframes. For each set of contemporaneous frames in time sequence order, the main layer of each keyframe is compressed using an inter-frame compression technique. In addition, the main layer of each non-keyframe within the frame set under consideration is compressed using a spatial prediction compression technique. Finally, the boundary layers of each frame in the current frame set are each compressed using an intra-frame compression technique. Decompression is generally the reverse of the compression process.
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