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    METHOD FOR ENTROPY ENCODING TRANSFORM COEFFICIENTS
    44.
    发明公开
    METHOD FOR ENTROPY ENCODING TRANSFORM COEFFICIENTS 审中-公开
    用于熵编码变换系数的方法

    公开(公告)号：EP3293976A1

    公开(公告)日：2018-03-14

    申请号：EP17193482.1

    申请日：2011-07-08

    申请人： Samsung Electronics Co., Ltd.

    发明人： LEE, Bae-Keun ,  SOHN, Yu-Mi

    IPC分类号： H04N19/91 ,  H04N19/176 ,  H04N19/13 ,  H04N19/129 ,  H04N19/463 ,  H04N19/18 ,  H04N19/60 ,  H04N19/184 ,  H04N19/61

    CPC分类号： H04N19/60 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/463 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

    摘要： A method and apparatus for entropy coding and decoding a transformation block. The method of entropy coding a transformation block includes determining a location of a last significant transformation coefficient having a non-zero value from among transformation coefficients included in a transformation block having a certain size, according to a certain scan order; and coding information about the location of the last significant transformation coefficient by using its horizontal axis direction location and its vertical axis direction location in the transformation block.

    摘要翻译： 一种用于对变换块进行熵编码和解码的方法和设备。 对变换块进行熵编码的方法包括：根据特定扫描顺序，从包括在具有特定尺寸的变换块中的变换系数中确定具有非零值的最后有效变换系数的位置; 以及通过使用其在变换块中的其水平轴方向位置及其垂直轴方向位置来编码关于最后有效变换系数的位置的信息。

    METHOD AND APPARATUS FOR PERFORMING ARITHMETIC CODING BY LIMITED CARRY OPERATION
    45.
    发明公开
    METHOD AND APPARATUS FOR PERFORMING ARITHMETIC CODING BY LIMITED CARRY OPERATION 审中-公开

    公开(公告)号：EP3163876A4

    公开(公告)日：2018-02-28

    申请号：EP15815210

    申请日：2015-06-29

    申请人： LG ELECTRONICS INC

    发明人： SAID AMIR ,  MAHFOODH ABO TALIB

    IPC分类号： H04N19/13 ,  H03M7/30 ,  H03M7/40 ,  H04N19/50

    CPC分类号： H04N19/13 ,  H03M7/4006 ,  H03M7/4012 ,  H03M7/6011 ,  H04N19/50

    摘要： Disclosed herein is a method of performing an arithmetic coding for data symbols, comprising: creating an interval for each of the data symbols, the interval being represented based on a starting point and a length of the interval; updating the interval for each of the data symbols; checking whether the updated interval is included in a specific range; and renormalizing the updated interval based on a result of the checking. [Abstract as Published in WO2016/003130 A1] Disclosed is a method for performing arithmetic coding on data symbols, the method comprising the steps of: generating sections for respective data symbols, wherein the sections are expressed based on the starting point and length of the sections; updating the sections for the respective data symbols; checking whether or not the updated sections fall within a predetermined range; and renormalizing the updated sections on the basis of the result of the check.

    METHOD FOR DECODING CHROMA IMAGE
    47.
    发明公开
    METHOD FOR DECODING CHROMA IMAGE 审中-公开
    解码色度图像的方法

    公开(公告)号：EP3276963A1

    公开(公告)日：2018-01-31

    申请号：EP17191728.9

    申请日：2012-11-09

    申请人： Infobridge Pte. Ltd.

    发明人： OH, Soo Mi ,  YANG, Moonock

    IPC分类号： H04N19/593 ,  H04N19/50 ,  H04N19/196 ,  H04N19/186 ,  H04N19/182 ,  H04N19/176 ,  H04N19/11 ,  H04N19/105 ,  H04N19/124 ,  H04N19/159 ,  H04N19/61 ,  H04N19/13

    CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

    摘要： Provided is a method that derives a chroma intra prediction mode of a prediction unit, determines a size of a current chroma block using luma transform size information, generates a chroma prediction block of the current chroma block using the chroma intra prediction mode, generates a chroma residual block of the current chroma block using the chroma intra prediciton mode and a chroma quantization parameter, generates a chroma reconstructed block adding the chroma prediction block and the chroma residual block, and the chroma quantization parameter is generated using a luma quantization parameter and information in - cheating the relationship between the luma quantization parameter and the chroma quantization parameter. Therefore, the coding efficiency is improved by adjusting the chroma quantization parameter per picture. Also, the amount of bits for transmitting the luma and chroma quantization parameters is reduced by encoding the luma quantization parameter using neighboring luma quantization parameters.

    摘要翻译： 提供了一种方法，该方法导出预测单元的色度帧内预测模式，使用亮度变换大小信息确定当前色度块的大小，使用色度帧内预测模式生成当前色度块的色度预测块，产生色度 使用色度帧内预测模式和色度量化参数来生成当前色度块的残差块，生成将色度预测块和色度残差块相加的色度重构块，并且使用亮度量化参数来生成色度量化参数，并且将信息 - 欺骗亮度量化参数和色度量化参数之间的关系。 因此，通过调整每个图像的色度量化参数来提高编码效率。 而且，通过使用相邻亮度量化参数对亮度量化参数进行编码来减少用于发送亮度和色度量化参数的比特量。

    CODING DEVICE AND DECODING DEVICE
    48.
    发明公开
    CODING DEVICE AND DECODING DEVICE 审中-公开
    编码设备和解码设备

    公开(公告)号：EP3264771A1

    公开(公告)日：2018-01-03

    申请号：EP15883396.2

    申请日：2015-12-22

    申请人： KDDI Corporation

    发明人： WANG, Cui ,  KAWAMURA, Kei ,  NAITO, Sei

    IPC分类号： H04N19/61 ,  H04N19/129 ,  H04N19/157 ,  H04N19/176 ,  H04N19/593

    CPC分类号： H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

    摘要： An encoding device includes means for determining a block division type and an intra prediction mode, means for applying non-square intra prediction to obtain a predictive value when the determined block is non-square, means for obtaining a prediction residual which is the difference between the predictive value and a corresponding input image to be encoded, means for rearranging prediction residuals obtained when the determined block is non-square into a square format, means for applying orthogonal transformation to the prediction residuals rearranged into the square format to obtain a transform coefficient, means for quantizing the transform coefficients to obtain level values, means for encoding the level values, the block division type, and the intra prediction mode, means for inversely quantizing and inversely transforming the level values to obtain reconstructed prediction residuals, means for rearranging a block of the reconstructed prediction residuals into a non-square format when the block corresponds to a non-square format, and means for adding the predictive value to the reconstructed prediction residuals rearranged into the non-square format to reconstruct the encoded pixels.

    摘要翻译： 编码装置包括用于确定块分割类型和帧内预测模式的装置，用于当所确定的块是非正方形时应用非正方形帧内预测以获得预测值的装置，用于获得预测残差的装置， 待编码的预测值和相应的输入图像，用于将当所确定的块非正方形时获得的预测残差重新排列为正方形格式的装置，用于将正交变换应用于重排为正方形格式的预测残差以获得变换系数的装置 用于量化变换系数以获得电平值的装置，用于编码电平值，块分割类型和帧内预测模式的装置，用于对电平值进行逆量化和逆变换以获得重构的预测残差的装置，用于重新排列 将重构的预测残差块分解为非方形格式 当块对应于非正方形格式时，以及用于将预测值添加到重新排列成非正方形格式的重构预测残差以重建编码像素的装置。

    DECODING METHOD AND DECODER FOR QUANTIZATION PARAMETER DECODING FOR VIDEO DECODING
    49.
    发明公开
    DECODING METHOD AND DECODER FOR QUANTIZATION PARAMETER DECODING FOR VIDEO DECODING 有权
    用于视频解码的量化参数解码的解码方法和解码器

    公开(公告)号：EP3264765A1

    公开(公告)日：2018-01-03

    申请号：EP17183599.4

    申请日：2012-06-14

    申请人： NEC Corporation

    发明人： CHONO, Keiichi ,  AOKI, Hirofumi

    IPC分类号： H04N19/13 ,  H04N19/154 ,  H04N19/463 ,  H04N19/91 ,  H04N19/169 ,  H04N19/44 ,  H04N19/126

    CPC分类号： H04N19/126 ,  H04N19/13 ,  H04N19/154 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/463 ,  H04N19/91

    摘要： An image quantization parameter encoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit 12 for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoding unit 13 for binary arithmetic encoding a first bin indicating whether or not the delta quantization parameter is significant, one or more other bins indicating an absolute value of the delta quantization parameter and made non-redundant, and a bin indicating whether the delta quantization parameter is positive or negative, in the case where the delta quantization parameter is significant.

    摘要翻译： 图像量化参数编码器包括：预测单元11，用于从过去的重构量化参数生成预测量化参数; 计算单元12，用于根据量化参数和预测的量化参数生成增量量化参数; 以及量化参数编码单元13，用于对指示增量量化参数是否有效的第一仓，指示增量量化参数的绝对值并且被设为非冗余的一个或多个其他仓进行二进制算术编码，以及仓指示是否 在增量量化参数是显着的情况下，增量量化参数是正的或负的。