发明授权
- 专利标题: Methods and apparatus for determining quantization parameter predictors from a plurality of neighboring quantization parameters
- 专利标题(中): 用于从多个相邻量化参数确定量化参数预测器的方法和装置
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申请号: US13702519申请日: 2011-06-08
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公开(公告)号: US09235774B2公开(公告)日: 2016-01-12
- 发明人: Xiaoan Lu , Joel Sole , Peng Yin , Qian Xu , Yunfei Zheng
- 申请人: Xiaoan Lu , Joel Sole , Peng Yin , Qian Xu , Yunfei Zheng
- 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/US2011/039579 WO 20110608
- 国际公布: WO2011/156458 WO 20111215
- 主分类号: G06K9/36
- IPC分类号: G06K9/36 ; G06K9/48 ; H04N19/196 ; H04N19/51 ; H04N19/61 ; H04N19/593 ; H04N19/126
摘要:
Methods and apparatus are provided for determining quantization parameter predictors from a plurality of neighboring quantization parameters. An apparatus includes an encoder for encoding image data for at least a portion of a picture using a quantization parameter predictor for a current quantization parameter to be applied to the image data. The quantization parameter predictor is determined using multiple quantization parameters from previously coded neighboring portions. A difference between the current quantization parameter and the quantization parameter predictor is encoded for signaling to a corresponding decoder.
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