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    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD
    2.
    发明公开
    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD 审中-公开
    KODIERUNGSVERFAHREN VARIABLERLÄNGEUND DEKODIERUNGSVERFAHREN VARIABLERLÄNGE

    公开(公告)号：EP3099068A1

    公开(公告)日：2016-11-30

    申请号：EP16175248.0

    申请日：2002-11-22

    申请人： Godo Kaisha IP Bridge 1

    发明人： KADONO, Shinya ,  KONDO, Satoshi ,  HAGAI, Makoto ,  ABE, Kiyofumi

    IPC分类号： H04N7/52

    CPC分类号： G06T9/005 ,  G11B20/1426 ,  H03M5/145 ,  H03M7/40 ,  H03M7/46 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/69 ,  H04N19/89 ,  H04N19/93

    摘要： According to the present invention, an image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes an reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values. Accordingly, a variable length coding process for quantized coefficients is carried out at a higher coding efficiency, with redundant information included in the coefficients being effectively reduced.

    摘要翻译： 根据本发明，图像编码装置提供游程长度编码单元RLE1，该游程长度编码单元RLE1使通过使用指示数量的游程值Run的运动值Run将通过将图像信号的频率分量量化到可变长度编码处理而获得的量化系数 连续零系数和表示零系数之后的非零系数的值的电平值Lev。 游程长度编码单元RLE1包括用于重新排列水平值Lev的重排序单元Lreodr; 可变长度编码器LVLC，用于通过使用根据量化参数QP的值选择的码表来对重新排序的电平值ROLev进行编码; 用于重新排序运行值的重新排序单元Rreodr从量化系数的高频分量运行到低频分量; 以及可变长度编码器RVLC，用于通过使用根据已经处理的运行值的数量选择的代码表来对重新排序的运行值RORun进行编码。 因此，用于量化系数的可变长度编码处理以更高的编码效率执行，其中包括在系数中的冗余信息被有效地减少。

    IMAGE ENCODING METHOD AND IMAGE DECODING METHOD
    3.
    发明公开
    IMAGE ENCODING METHOD AND IMAGE DECODING METHOD 有权
    图像编码方法和图像解码方法

    公开(公告)号：EP3096515A1

    公开(公告)日：2016-11-23

    申请号：EP16173325.8

    申请日：2003-04-10

    申请人： Godo Kaisha IP Bridge 1

    发明人： KADONO, Shinya ,  KONDO, Satoshi ,  HAGAI, Makoto ,  ABE, Kiyofumi

    IPC分类号： H04N7/52

    CPC分类号： H04N19/127 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/423 ,  H04N19/46 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89

    摘要： The present invention provides an image coding method and an image decoding method by which an image can be restored correctly even if part of memory management information is lost by a transmission channel error, a candidate of a reference image that can be referred to is selected more appropriately, and coding efficiency is improved.
    The image coding method includes a step for executing coding of an image (Step 100), a step for judging whether a picture in the memory which is never used as reference exists (Step 102), a step for coding memory management information for releasing the picture in the memory which is never used as reference when a picture in the memory which is never used as reference exists (Step 103), a step for releasing the picture in the memory which is never used as reference (Step 104), a step for judging whether the memory management information that releases the picture in the memory which is never used as reference is coded by coding of an image immediately before (Step 105), and a step for coding again the memory management information that releases the picture in the memory which is never used as reference when the memory management information is coded (Step 106).

    摘要翻译： 本发明提供一种图像编码方法和图像解码方法，通过该图像编码方法和图像解码方法即使存储器管理信息的一部分由于传输信道错误而丢失，也可以正确地恢复图像，更多地选择可参照的参考图像的候选 适当地提高编码效率。 该图像编码方法包括执行图像编码的步骤（步骤100），判断存储器中从未被用作参考的图像的步骤（步骤102），编码存储器管理信息以释放 当存在从未被用作参考的存储器中的图像时，存储器中从未被用作参考的图像（步骤103），用于释放存储器中不被用作参考的图像的步骤（步骤104），步骤 用于判断是否通过紧接在之前的图像的编码来编码释放未被用作参考的存储器中的图像的存储器管理信息（步骤105），以及用于再次编码释放图像的存储器管理信息的步骤 当存储器管理信息被编码时从未被用作参考的存储器（步骤106）。

    MOVING PICTURE DECODING METHOD
    5.
    发明公开
    MOVING PICTURE DECODING METHOD 审中-公开
    移动图片解码方法

    公开(公告)号：EP3285486A1

    公开(公告)日：2018-02-21

    申请号：EP17188103.0

    申请日：2003-07-22

    申请人： Godo Kaisha IP Bridge 1

    发明人： ABE, Kiyofumi ,  KADONO, Shinya ,  KONDO, Satoshi ,  HAGAI, Makoto

    IPC分类号： H04N19/105 ,  H04N19/117 ,  H04N19/134 ,  H04N19/147 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/42 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

    摘要： According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated.

    摘要翻译： 根据本发明的图像编码方法，将由图像编号标识的编码图像作为参考图像存储在存储单元中; 生成表示图片编号和用于指定参考图片的参考索引和用于生成预测图像的系数之间的对应的命令; 通过参考索引来指定当对要编码的当前图片中的当前块执行运动补偿时使用的参考图片; 通过使用与参考索引相对应的系数对通过指定参考图片内的运动估计获得的块执行线性预测来生成预测图像; 包括通过对预测误差进行编码而获得的编码图像信号，所述预测误差是要编码的当前图像中的当前块与预测图像之间的差，输出命令，参考索引和系数。 此时，指示最大参考索引值的信息被编码并被包括在编码图像信号中，并且生成指示至少一个图片编号与多个参考索引之间的对应关系的命令。

    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD
    6.
    发明公开
    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD 审中-公开

    公开(公告)号：EP3099067A1

    公开(公告)日：2016-11-30

    申请号：EP16175245.6

    申请日：2002-11-22

    申请人： Godo Kaisha IP Bridge 1

    发明人： KADONO, Shinya ,  KONDO, Satoshi ,  HAGAI, Makoto ,  ABE, Kiyofumi

    IPC分类号： H04N7/52

    CPC分类号： G06T9/005 ,  G11B20/1426 ,  H03M5/145 ,  H03M7/40 ,  H03M7/46 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/69 ,  H04N19/89 ,  H04N19/93

    摘要： According to the present invention, an image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes an reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values. Accordingly, a variable length coding process for quantized coefficients is carried out at a higher coding efficiency, with redundant information included in the coefficients being effectively reduced.

    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD
    7.
    发明公开
    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD 有权
    变长编码方法和变长编码方法

    公开(公告)号：EP3099066A1

    公开(公告)日：2016-11-30

    申请号：EP16175243.1

    申请日：2002-11-22

    申请人： Godo Kaisha IP Bridge 1

    发明人： KADONO, Shinya ,  KONDO, Satoshi ,  HAGAI, Makoto ,  ABE, Kiyofumi

    IPC分类号： H04N7/52

    CPC分类号： G06T9/005 ,  G11B20/1426 ,  H03M5/145 ,  H03M7/40 ,  H03M7/46 ,  H04N19/13 ,  H04N19/134 ,  H04N19/136 ,  H04N19/162 ,  H04N19/176 ,  H04N19/18 ,  H04N19/60 ,  H04N19/61 ,  H04N19/69 ,  H04N19/89 ,  H04N19/93

    摘要： According to the present invention, an image coding apparatus provides a run-length encoding unit RLE1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable length coding process by using a run value Run that indicates the number of successive zero coefficients and a level value Lev that indicates a value of a non-zero coefficient following the zero coefficients. The run-length encoding unit RLE1 includes an reordering unit Lreodr for reordering level values Lev; a variable length coder LVLC for coding reordered level values ROLev by using a code table that is selected according to the value of a quantization parameter QP; a reordering unit Rreodr for reordering run values Run from high frequency component of the quantized coefficients to low frequency component; and a variable length coder RVLC for coding reordered run values RORun by using a code table that is selected according to the number of already-processed run values. Accordingly, a variable length coding process for quantized coefficients is carried out at a higher coding efficiency, with redundant information included in the coefficients being effectively reduced.

    摘要翻译： 根据本发明，一种图像编码装置提供游程长度编码单元RLE1，其通过使用表示图像信号的频率分量的数目的游程值Run来对通过量化图像信号的频率分量而获得的量化系数进行可变长度编码处理 连续的零系数和表示零系数之后的非零系数的值的电平值Lev。 游程长度编码单元RLE1包括用于重新排序级别值Lev的重排序单元Lreodr; 一个可变长度编码器LVLC，用于通过使用根据量化参数QP的值选择的代码表来编码重新排序的级别值ROLev; 重排序单元Rreodr，用于重新排序从量化系数的高频分量到低频分量的运行值Run; 以及可变长度编码器RVLC，用于通过使用根据已处理的运行值的数量选择的代码表来编码重新排序的运行值RORun。 因此，以更高的编码效率执行量化系数的可变长度编码处理，并且系数中包括的冗余信息被有效地减少。