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    Moving picture coding and/or decoding systems
    2.
    发明公开
    Moving picture coding and/or decoding systems 失效
    运动图像编码和/或解码系统

    公开(公告)号：EP1802138A2

    公开(公告)日：2007-06-27

    申请号：EP07004937.4

    申请日：1996-03-15

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Nagai, Takeshi ,  Kikuchi, Yoshihiro ,  Watanabe, Toshiaki ,  Takeshi, Chujoh

    IPC分类号： H04N7/64 ,  H04N7/36 ,  H04N7/50

    CPC分类号： H03M7/40 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/152 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/66 ,  H04N19/69 ,  H04N19/70 ,  H04N19/89 ,  H04N19/91

    摘要： A moving picture coding and/or decoding system includes a encoder (10) for coding input image data, a divider (14) for dividing a code string supplied from the encoder (10), into a plurality of code strings, a reorder (15) arranging at least one of the plurality of code strings in the forward direction from the head to the end, and at least one of the other code strings in the backward direction from the head to the end. A variable-length coding system includes a code-word table for storing a plurality of code words so that the code words correspond to source symbols, and an encoder for selecting a code word corresponding to the source symbol inputted from the code-word table and for outputting the selected code word as coding data. The plurality of code words can be decoded in either of the forward and backward directions. The plurality of code words are configured so that the pause between codes can be detected by a predetermined weight of the code word (in the case of a binary code, the number of "1" or "0" in the code word).

    摘要翻译： 运动图像编码和/或解码系统包括用于编码输入图像数据的编码器（10），用于将从编码器（10）提供的代码串划分为多个代码串的分割器（14），重排序器 ）将所述多个代码串中的至少一个代码串从所述头部到所述末尾排列在正向上，并且将所述其他代码串中的至少一个排列在从头部到末尾的反向方向上。 一种可变长度编码系统包括用于存储多个码字以使码字对应于源码元的码字表和用于选择与从码字表输入的源码元相对应的码字的编码器和 用于输出选择的码字作为编码数据。 多个码字可以在前向和后向中的任一个上被解码。 多个码字被配置为使得可以通过码字的预定权重（在二进制码的情况下，码字中的“1”或“0”的数目）来检测码之间的暂停。

    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD
    7.
    发明公开
    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD 审中-公开
    VARIABLE-LÄNGE-CODIERUNGS VERFAHREN UND VARIABLE-LÄNGE-DECODIERUNGS VERFAHREN

    公开(公告)号：EP1453208A1

    公开(公告)日：2004-09-01

    申请号：EP02790698.1

    申请日：2002-11-22

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

    IPC分类号： H03M7/40

    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 (103) that encodes quantized coefficients corresponding to an image signal as target data to be processed is provided with a run-length encoding unit (RLE2) that assigns variable length codes to the quantized coefficients using code tables. The run-length encoding unit (RLE2) forms a second code table by optimizing a first code table to the target data to be processed, and selects one of the first and the second code tables as a code table that is to be employed for the assignment of the variable length codes in accordance with a quantization parameter (QP) or a variable length coding selection signal (VlcSel), whereby redundancy of information included in the target data to be processed can be effectively eliminated, and the compression ratio for the image signal or the like can be further increased.

    摘要翻译： 根据本发明，对与图像信号对应的量化系数作为要处理的目标数据进行编码的图像编码装置（103）设置有游程长度编码单元（RLE2），其将可变长度代码分配给量化系数，使用 代码表。 运行长度编码单元（RLE2）通过将第一代码表优化为要处理的目标数据来形成第二代码表，并且选择第一和第二代码表中的一个作为要被用于 根据量化参数（QP）或可变长度编码选择信号（VlcSel）对可变长度码进行分配，从而可以有效地消除包含在待处理目标数据中的信息的冗余，并且图像的压缩比 信号等可以进一步增加。

    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD
    8.
    发明公开
    VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD 有权
    编码和解码技术可变长度

    公开(公告)号：EP1413139A2

    公开(公告)日：2004-04-28

    申请号：EP02803564.0

    申请日：2002-11-22

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

    IPC分类号： H04N7/24

    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 a 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 and/or decoding system
    9.
    发明公开
    Variable-length coding and/or decoding system 失效
    系统zur variablenLängendekodierung

    公开(公告)号：EP1265444A2

    公开(公告)日：2002-12-11

    申请号：EP02013468.0

    申请日：1996-03-15

    申请人： Kabushiki Kaisha Toshiba

    发明人： Nagai, Takeshi ,  Kikuchi, Yoshihiro 604 Kureare Toshiba Yoshino-cho ,  Watanabe, Toshiaki ,  Chujoh, Takeshi

    IPC分类号： H04N7/50 ,  H04N7/64 ,  H04N7/66 ,  H04N7/36

    CPC分类号： H03M7/40 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/152 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/46 ,  H04N19/503 ,  H04N19/61 ,  H04N19/66 ,  H04N19/69 ,  H04N19/70 ,  H04N19/89 ,  H04N19/91

    摘要： A moving picture coding and/or decoding system includes a encoder (10) for coding input image data, a divider (14) for dividing a code string supplied from the encoder (10), into a plurality of code strings, a reorder (15) for arranging at least one of the plurality of code strings in the forward direction from the head to the end, and at least one of the other code strings in the backward direction from the head to the end. A variable-length coding system includes a code-word table for storing a plurality of code words so that the code words correspond to source symbols, and an encoder for selecting a code word corresponding to the source symbol inputted from the code-word table and for outputting the selected code word as coding data. The plurality of code words can be decoded in either of the forward and backward directions. The plurality of code words are configured so that the pause between codes can be detected by a predetermined weight of the code word (in the case of a binary code, the number of "1" or "0" in the code word).

    摘要翻译： 运动图像编码和/或解码系统包括用于编码输入图像数据的编码器（10），用于将从编码器（10）提供的代码串分割成多个代码串的分频器（14），重新排序（15） ），用于从头部到末端沿着向前方向布置多个代码串中的至少一个，以及从头到尾的向后方向中的至少一个代码串。 可变长度编码系统包括用于存储多个码字的码字表，使得码字对应于源符号，以及编码器，用于选择与从码字表输入的源符号对应的码字， 用于输出所选择的代码字作为编码数据。 可以在向前和向后的任一方向上解码多个码字。 多个代码字被配置为使得可以通过代码字的预定权重（在二进制代码的情况下，代码字中的“1”或“0”的数量）来检测代码之间的暂停。

    Error resistant video coding using reversible variable length codes (RVLCs)
    10.
    发明公开
    Error resistant video coding using reversible variable length codes (RVLCs) 审中-公开
    Fehlerresistente Videocodierung unter Verwendung reversibler代码变量Länge

    公开(公告)号：EP1075148A2

    公开(公告)日：2001-02-07

    申请号：EP00202719.1

    申请日：2000-07-31

    申请人： Texas Instruments Incorporated

    发明人： Iyoh, Yuji

    IPC分类号： H04N7/50 ,  H04N7/36 ,  H04N7/64

    CPC分类号： H04N19/00 ,  H04N19/51 ,  H04N19/517 ,  H04N19/66 ,  H04N19/68 ,  H04N19/69 ,  H04N19/70 ,  H04N19/89

    摘要： Motion compensated video encoding and decoding with motion vectors encoded with a reversible coarse code interleaved with an additional code, the coarse code occupying the even numbered bits and the additional code the odd-numbered bits of a codeword. Preferred embodiments include motion vector data partitioned from texture data and with motion vectors differentially encoded by use of an immediately preceding motion vector as a predictor.

    摘要翻译： 运动补偿视频编码和解码与运动矢量编码，可逆粗略代码与附加代码交错，粗码占用偶数位，附加代码代码字的奇数位。 优选实施例包括从纹理数据分割的运动矢量数据和通过使用紧接在前的运动矢量进行差分编码的运动矢量作为预测器。