Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device
    21.
    发明授权
    Moving picture predicting method, moving image encoding method and device, and moving image decoding method and device 有权
    运动图像预测方法,运动图像编码方法和装置,以及运动图像解码方法和装置

    公开(公告)号:US07542510B2

    公开(公告)日:2009-06-02

    申请号:US10500801

    申请日:2003-09-04

    IPC分类号: H04N7/12 G06K9/36

    摘要: A moving picture prediction method for enabling a calculation amount and a storage capacity to be reduced in a prediction about a moving picture by scaling processing is provided. A method for predicting the value P of Time T from the value P0 of Time T0 and the value P1 of Time T1 includes a step of judging whether it is possible to generate a predictive value with a predetermined significant number of bits by scaling using Time T0, T1 and T (Step S90); a step of predicting the value P from the values P0 and P1 by scaling using Time T0, T1 and T when it is possible to generate a predictive value with the predetermined significant number of bits (Step S92); and a step of predicting the value P from the values P0 and P1 without using Time T0, T1 and T when it is impossible to generate a predictive value with the predetermined significant number of bits (Step S91).

    摘要翻译: 提供一种运动图像预测方法,用于通过缩放处理使关于运动图像的预测中的计算量和存储容量减小。 从时间T0的值P0和时间T1的值P1预测时间T的值P的方法包括以下步骤:通过使用时间T0进行缩放来判断是否可以通过缩放生成具有预定有效位数的预测值 ,T1和T(步骤S90); 当可以产生具有预定有效位数的预测值时,通过使用时间T0,T1和T的缩放来从值P0和P1中预测值P的步骤(步骤S92)。 以及当不可能用预定的有效位数生成预测值时,不使用时间T0,T1和T,从值P0和P1预测值P的步骤(步骤S91)。

    Reference picture selection method and apparatus
    24.
    发明授权
    Reference picture selection method and apparatus 失效
    参考图片选择方法和装置

    公开(公告)号:US08687694B2

    公开(公告)日:2014-04-01

    申请号:US12089126

    申请日:2006-10-02

    IPC分类号: H04N7/26

    摘要: The reference picture selection method according to the present invention is a method for selecting a reference picture for a current bottom field, and includes: predicting a degree of a motion of the current bottom field using a specific field which precedes the current bottom field in coding order; setting reference picture candidates suitable for coding the current bottom field based on the predicted degree of motion; and selecting a reference picture of the current bottom field among the set reference picture candidates.

    摘要翻译: 根据本发明的参考图像选择方法是用于选择当前底场的参考图像的方法,并且包括:使用在编码中的当前底部场之前的特定场来预测当前底场的运动程度 订购; 基于预测的运动程度设置适合于编码当前底部场景的参考图像候选; 以及在所设置的参考图像候选中选择当前底部场的参考图像。

    Motion image encoding method and motion image decoding method
    25.
    发明授权
    Motion image encoding method and motion image decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号:US08179962B2

    公开(公告)日:2012-05-15

    申请号:US11659723

    申请日:2005-09-06

    IPC分类号: H04B1/66 H04N7/12

    摘要: The present invention provides a video coding method and a video decoding method which allow enhancement of coding efficiency and improvement in video quality. A video coding apparatus includes: a mode determination unit which determines a notification method for notifying a transform block size to be used in orthogonal transform of a current block to be either the implicit mode or the explicit mode, and outputs the ABT mode indicating the determined notification method; an orthogonal transformation unit which transforms the difference values between the input image and predicted image into frequency coefficients based on the transform block size determined in accordance with the determined notification method; a quantization unit which quantizes the frequency coefficients and output the quantized values; and a variable length coding unit which performs variable length coding on the quantized values, the ABT mode, and the like, so as to output a coded stream.

    摘要翻译: 本发明提供一种能够提高编码效率,提高视频质量的视频编码方法和视频解码方法。 视频编码装置包括:模式确定单元,其确定用于将当前块的正交变换中使用的变换块大小通知为隐式或显式模式的通知方法,并且输出指示所确定的ABT模式的ABT模式 通知方式 正交变换单元,其基于根据所确定的通知方法确定的变换块大小,将输入图像和预测图像之间的差分值变换为频率系数; 量化单元,其量化频率系数并输出量化值; 以及对量化值ABT模式等进行可变长度编码的可变长度编码单元,以便输出编码流。

    Decoding method and encoding method
    28.
    发明授权
    Decoding method and encoding method 失效
    解码方法和编码方法

    公开(公告)号:US07443320B2

    公开(公告)日:2008-10-28

    申请号:US11627099

    申请日:2007-01-25

    IPC分类号: H03M7/40

    摘要: A decoding method according to the present invention is a method of decoding a variable length code to a Run symbol and a Level symbol. The Run symbol indicates the number of consecutive coefficients each having a value of zero. The Level symbol indicates a value of a non-zero coefficient following the Run symbol. The decoding method includes decoding a variable length code to a code number, determining whether the code number obtained in the decoding belongs to a first range or a predetermined range, decoding the code number to a Run symbol and a Level symbol by referring to a table, when it is determined that the code number belongs to the first range, and decoding the code number to a Level symbol and then decoding a variable length code following the decoded variable length code to a Run symbol, without referring to the table, when it is determined that the code number belongs to the predetermined range.

    摘要翻译: 根据本发明的解码方法是将可变长度码解码为运行符号和电平符号的方法。 运行符号表示每个具有零值的连续系数的数量。 电平符号表示运行符号之后的非零系数的值。 解码方法包括将可变长度码解码为码数,确定在解码中获得的码号是否属于第一范围或预定范围,通过参考表格将码号解码为运行符号和电平符号 当确定代码号码属于第一范围时,并且将代码号解码为电平符号,然后将解码的可变长度代码之后的可变长度代码解码为运行符号,而不参考该表,何时 确定代码号属于预定范围。

    Decoding method and encoding method
    29.
    发明授权
    Decoding method and encoding method 失效
    解码方法和编码方法

    公开(公告)号:US07209059B2

    公开(公告)日:2007-04-24

    申请号:US11293154

    申请日:2005-12-05

    IPC分类号: H03M7/40

    摘要: A decoding method according to the present invention is a method of decoding a variable length code to a Run symbol and a Level symbol. The Run symbol indicates the number of consecutive coefficients each having a value of zero. The Level symbol indicates a value of a non-zero coefficient following the Run symbol. The decoding method includes: decoding a variable length code to a code number; determining whether the code number obtained in the decoding belongs to a first range or a predetermined range; decoding the code number to a Run symbol and a Level symbol by referring to the table, when it is determined that the code number belongs to the first range; and decoding the code number to a Level symbol and then decoding a variable length code following the decoded variable length code to a Run symbol, without referring to the table, when it is determined that the code number belongs to the predetermined range.

    摘要翻译: 根据本发明的解码方法是将可变长度码解码为运行符号和电平符号的方法。 运行符号表示每个具有零值的连续系数的数量。 电平符号表示运行符号之后的非零系数的值。 解码方法包括:将可变长度码解码为码数; 确定在解码中获得的代码号码是否属于第一范围或预定范围; 当确定代码号属于第一范围时,通过参考该表将码号解码为运行符号和电平符号; 并且将代码号解码为电平符号,然后将解码的可变长度代码之后的可变长度代码解码为运行符号,而不参考该表,当确定代码号码属于预定范围时。