发明授权
US5557332A Apparatus and method for reproducing a prediction-encoded video signal
失效
用于再现预测编码视频信号的装置和方法
- 专利标题: Apparatus and method for reproducing a prediction-encoded video signal
- 专利标题(中): 用于再现预测编码视频信号的装置和方法
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申请号: US437016申请日: 1995-05-08
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公开(公告)号: US5557332A公开(公告)日: 1996-09-17
- 发明人: Hideki Koyanagi , Hiroshi Sumihiro , Seiichi Emoto , Tohru Wada
- 申请人: Hideki Koyanagi , Hiroshi Sumihiro , Seiichi Emoto , Tohru Wada
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-045112 19930305
- 主分类号: G06T9/00
- IPC分类号: G06T9/00 ; H04N7/26 ; H04N7/36 ; H04N7/50 ; H04N7/12
摘要:
A digital video signal that has been encoded using motion-compensated prediction, transform encoding, and variable-length coding, is decoded using parallel processing. Frames of the video signal are divided into slices made up of a sequence of macroblocks. The signal to be decoded is slice-wise divided for parallel variable-length decoding. Each variable-length-decoded macroblock is divided into its constituent blocks for parallel inverse transform processing. Resulting blocks of difference data are added in parallel to corresponding blocks of reference data. The blocks of reference data corresponding to each macroblock are read out in parallel from reference data memories on the basis of a motion vector associated with the macroblock. Reference data corresponding to each macroblock is distributed for storage among a number of reference data memories.