发明申请
- 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
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申请号: US10831158申请日: 2004-04-26
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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
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.
公开/授权文献
- US07295613B2 Early detection of zeros in the transform domain 公开/授权日:2007-11-13
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