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    • 79. 发明申请
    • RICE PARAMETER UPDATE FOR COEFFICIENT LEVEL CODING IN VIDEO CODING PROCESS
    • 视频编码过程中系统级编码的米参数更新
    • US20140307800A1
    • 2014-10-16
    • US14250282
    • 2014-04-10
    • QUALCOMM Incorporated
    • Joel Sole RojalsMarta KarczewiczRajan Laxman Joshi
    • H04N19/44H04N19/60
    • H04N19/13H04N19/156H04N19/176H04N19/44H04N19/60H04N19/91
    • Techniques are described for updating a value of a Rice parameter used to define Golomb codes for coefficient level coding. The Golomb codes defined by the Rice parameter may be used to code a remaining absolute value of a coefficient level for at least one coefficient in a coefficient group (CG). According to the techniques, the value of the Rice parameter is updated based on a selection of a minimum of either a maximum value of the Rice parameter or a variable increment of the value of the Rice parameter. The variable increment is determined based on the value of the Rice parameter and an absolute value of the coefficient level for the current coefficient being coded. Techniques are also described for adjusting the value of the Rice parameter used to define Golomb codes for coefficient level coding based on whether a transform is applied to a transform block.
    • 描述了用于更新用于定义用于系数级编码的戈洛姆码的Rice参数的值的技术。 由Rice参数定义的Golomb码可用于对系数组(CG)中的至少一个系数的系数级别的剩余绝对值进行编码。 根据该技术,基于Rice参数的最大值或Rice参数的值的可变增量的最小值的选择来更新Rice参数的值。 根据Rice参数的值和正在编码的当前系数的系数级别的绝对值来确定可变增量。 还描述了用于基于是否将变换应用于变换块来调整用于定义用于系数级编码的Golomb码的Rice参数的值的技术。