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    Motion Image Encoding Method and Motion Image Decoding Method
    7.
    发明申请
    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：US20070206679A1

    公开(公告)日：2007-09-06

    申请号：US11659723

    申请日：2005-09-06

    申请人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    发明人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    IPC分类号： H04N11/04

    CPC分类号： H04N19/00 ,  H04N19/122 ,  H04N19/137 ,  H04N19/147 ,  H04N19/176

    摘要： It is an object of the present invention to provide a video coding method and a video decoding method which allow enhancement of coding efficiency and improvement in video quality. A video coding apparatus (100) includes: a mode determination unit (111) 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 (104) 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 (105) which quantizes the frequency coefficients and output the quantized values; and a variable length coding unit (110) 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： 本发明的目的是提供一种视频编码方法和视频解码方法，其能够提高编码效率和提高视频质量。 视频编码装置（100）包括：模式确定单元（111），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模式或显式模式的通知方法，并且输出 指示确定的通知方法的ABT模式; 基于根据所确定的通知方法确定的变换块大小，将输入图像与预测图像之间的差分值变换为频率系数的正交变换单元（104） 量化单元（105），其量化所述频率系数并输出所述量化值; 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（110），以输出编码流。

    Picture information decoding method and picture information encoding method
    8.
    发明申请
    Picture information decoding method and picture information encoding method 审中-公开
    图像信息解码方法和图像信息编码方法

    公开(公告)号：US20060133507A1

    公开(公告)日：2006-06-22

    申请号：US11293181

    申请日：2005-12-05

    申请人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    发明人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    IPC分类号： H04N11/04 ,  H04N7/12 ,  H04N11/02 ,  H04B1/66

    CPC分类号： H04N19/523 ,  H04N19/44 ,  H04N19/70

    摘要： A picture information decoding method enables to switch a pixel precisions of a motion vector while compatibility with conventional standard is maintained and a delay occurred in parsing a picture parameter set is prevented, and it is judged whether or not a half_pixel_mv_flag indicating the pixel precision of the motion vector used for picture decoding is included as a last parameter in a plurality of parameters of a picture parameter set, and in the case where the half_pixel_mv_flag is included, the half_pixel_mv_flag is decoded.

    摘要翻译： 图像信息解码方法能够切换运动矢量的像素精度，同时保持与常规标准的兼容性，并且防止在分析图像参数集中发生延迟，并且判断表示像素精度的half_pixel_mv_flag是否为 用于图像解码的运动矢量作为图像参数集合的多个参数中的最后一个参数被包括，并且在包括half_pixel_mv_flag的情况下，half_pixel_mv_flag被解码。

    Decoding method and encoding method
    9.
    发明申请
    Decoding method and encoding method 失效
    解码方法和编码方法

    公开(公告)号：US20060119490A1

    公开(公告)日：2006-06-08

    申请号：US11293154

    申请日：2005-12-05

    申请人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    发明人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    IPC分类号： H03M7/00

    CPC分类号： H03M7/425 ,  H04N19/30 ,  H04N19/61 ,  H04N19/93

    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。