发明申请
US20040264575A1 Early detection of zeros in the transform domain 有权
在变换域中早期检测零

  • 专利标题: Early detection of zeros in the transform domain
  • 专利标题(中): 在变换域中早期检测零
  • 申请号: US10831158
    申请日: 2004-04-26
  • 公开(公告)号: US20040264575A1
    公开(公告)日: 2004-12-30
  • 发明人: Gisle Bjontegaard
  • 申请人: Tandberg Telecom AS
  • 申请人地址: NO Lysaker
  • 专利权人: Tandberg Telecom AS
  • 当前专利权人: Tandberg Telecom AS
  • 当前专利权人地址: NO Lysaker
  • 优先权: NO20032980 20030627
  • 主分类号: H04N007/12
  • IPC分类号: H04N007/12
Early detection of zeros in the transform domain
摘要:
A method detects blocks that are to be indicated as skipped at an earlier stage of the encoding process, than would be the case with other implementations of the ITU H.263 and H.264 standards. The method includes transforming 4null4 blocks in the macro blocks having a skip vector of zero with a binary-transform function. The blocks having values of the four uppermost left binary-transform coefficients less than a predefined threshold, are defined as skipped, thus, minimizing the need for computationally demanding block transformation or quantization.
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