发明授权
US09001889B2 Methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding
有权
用于改进视频编码和解码的量化舍入偏移调整的方法和装置
- 专利标题： Methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding
- 专利标题（中）： 用于改进视频编码和解码的量化舍入偏移调整的方法和装置
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申请号： US13319779申请日： 2010-05-12
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公开(公告)号： US09001889B2公开(公告)日： 2015-04-07
- 发明人: Xiaoan Lu , Qian Xu , Cristina Gomila
- 申请人： Xiaoan Lu , Qian Xu , Cristina Gomila
- 申请人地址： FR Issy les Moulineaux
- 专利权人： Thomson Licensing
- 当前专利权人： Thomson Licensing
- 当前专利权人地址： FR Issy les Moulineaux
- 代理商 Robert D. Shedd; Ronald J. Kolczynski
- 国际申请： PCT/US2010/001404 WO 20100512
- 国际公布： WO2010/134963 WO 20101125
- 主分类号： H04N11/04
- IPC分类号： H04N11/04 ; H04N19/179 ; H04N19/159 ; H04N19/176 ; H04N19/172 ; H04N19/124 ; H04N19/14 ; H04N19/174 ; H04N19/17
摘要：
There are provided methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding. An apparatus includes a video encoder for encoding an input coding unit by determining a residual for the input coding unit corresponding to a difference between the input coding unit and a reference coding unit, applying a transform to the residual to obtain at least one transform coefficient, and quantizing the at least one transform coefficient by selecting a particular quantization step size and a rounding offset.
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