发明授权
- 专利标题: Transmission of video information
- 专利标题(中): 传输视频信息
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申请号: US10785426申请日: 2004-02-23
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公开(公告)号: US07693220B2公开(公告)日: 2010-04-06
- 发明人: Ru-Shang Wang , Ragip Kurceren , Viktor Varsa , Keith Miller
- 申请人: Ru-Shang Wang , Ragip Kurceren , Viktor Varsa , Keith Miller
- 申请人地址: FI Espoo
- 专利权人: Nokia Corporation
- 当前专利权人: Nokia Corporation
- 当前专利权人地址: FI Espoo
- 主分类号: H04B1/66
- IPC分类号: H04B1/66 ; H04N7/12 ; H04N11/02
摘要:
The present invention relates to a method for transmitting video information, in which a bitstream is formed comprising a set of frames comprising macroblocks. At least one switching frame is formed into the bitstream, macroblocks of the switching frame are arranged into a first and a second group of macroblocks, each macroblock of the first group of macroblocks are encoded by a first encoding method to provide a switching point for continuing the transmission of video information with another bitstream formed from the video information; and macroblocks of the second group of macroblocks are encoded by another encoding method. Errors in transmission of video information are reduced by forming at least one SP-encoded frame by predictively encoding the macroblocks; replacing part of the SP-encoded macroblocks with intra encoded blocks; and transmitting the encoded frame containing both predictively and intra encoded macroblocks instead of the SP-encoded frame.
公开/授权文献
- US20040218673A1 Transmission of video information 公开/授权日:2004-11-04
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