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    • 4. 发明申请
    • VIDEO ENCODING BY FILTER SELECTION
    • 通过过滤器选择的视频编码
    • WO2010005808A1
    • 2010-01-14
    • PCT/US2009/048829
    • 2009-06-26
    • QUALCOMM INCORPORATEDMOTTA, GiovanniKARCZEWICZ, MartaYE, Yan
    • MOTTA, GiovanniKARCZEWICZ, MartaYE, Yan
    • H04N7/26
    • H04N19/577H04N19/117H04N19/136H04N19/147H04N19/19H04N19/192H04N19/523H04N19/61H04N19/80
    • A method and a device are described for selecting between multiple available filters in an encoder to provide a frame having a low error and distortion rate. For each full and sub pixel position, determining whether to use an alternative filter over the default filter during interpolation by estimating the rate distortion gain of using each filter and signaling to the decoder the optimal filter(s) applied to each full and sub-pixel position. In one embodiment, identifying a reference frame and a current frame, interpolating the reference frame using a default filter to create a default interpolated frame, interpolating the reference frame using an alternative filter to create an alternative interpolated frame, determining for each sub-pixel position whether to use the default filter or the alternative filter based on a minimal cost to generate a final reference frame.
    • 描述了用于在编码器中的多个可用滤波器之间进行选择以提供具有低误差和失真率的帧的方法和装置。 对于每个完整和子像素位置,通过估计使用每个滤波器的速率失真增益并向解码器发送信号,确定在插值期间是否使用默认滤波器上的替代滤波器,将最佳滤波器应用于每个全像素和子像素 位置。 在一个实施例中,识别参考帧和当前帧,使用默认滤波器内插参考帧以创建默认内插帧,使用替代滤波器内插参考帧以创建替代插值帧,确定每个子像素位置 是否使用默认过滤器或替代过滤器基于最小成本生成最终参考帧。
    • 8. 发明申请
    • OFFSET CALCULATION IN SWITCHED INTERPOLATION FILTERS
    • 开关插入滤波器的偏移计算
    • WO2010039492A3
    • 2011-12-22
    • PCT/US2009057831
    • 2009-09-22
    • QUALCOMM INCKARCZEWICZ MARTAMOTTA GIOVANNIYE YANPEISONG CHEN
    • KARCZEWICZ MARTAMOTTA GIOVANNIYE YANPEISONG CHEN
    • H04N7/26
    • H04N7/50H04N19/172H04N19/176H04N19/52H04N19/523H04N19/577H04N19/61
    • This disclosure describes techniques for adding offset to predictive video blocks during video coding. In one example, a method of encoding a video block includes interpolating a first block of predictive values based on a first reference video unit within a first list of reference data, and a second block of predictive values based on a second reference video unit within a second list of reference data, calculating, for sub-integer pixel positions, a first offset value based on the first block and the current video block, and a second offset value based on the first offset value and the second block, determining a final block of offset values based on the first block of predictive values, the second block of predictive values, the first offset values, and the second offset values, and encoding the current video block based on the final block of offset values.
    • 本公开描述了在视频编码期间将偏移量添加到预测视频块的技术。 在一个示例中,编码视频块的方法包括基于第一参考数据列表内的第一参考视频单元和基于第一参考视频单元中的第二参考视频单元的第二块预测值来内插第一预测值块 参考数据的第二列表,针对子整数像素位置,基于第一块和当前视频块计算第一偏移值,以及基于第一偏移值和第二块计算第二偏移值,确定最终块 基于预测值的第一块,预测值的第二块,第一偏移值和第二偏移值,并且基于最终的偏移值块对当前视频块进行编码。