公开(公告)号：EP3343919A1

公开(公告)日：2018-07-04

申请号：EP17206970.0

申请日：2017-12-13

申请人： FUJITSU LIMITED

发明人： KAZUI, Kimihiko

IPC分类号： H04N19/117 ,  H04N19/157 ,  H04N19/176

CPC分类号： H04N19/117 ,  H04N19/105 ,  H04N19/124 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/521 ,  H04N19/70 ,  H04N19/82

摘要： A video encoding apparatus includes a correction unit that corrects filter coefficients of an in-loop filter applied to an encoded reference block adjacent to a block to be encoded, based on a quantization value applied to the reference block and a quantization value applied to the block to be encoded when a mode of an in-loop filter applied to the block to be encoded is same as a mode of the in-loop filter applied to the reference block, a filter processing unit that uses the corrected filter coefficients to apply the in-loop filter to a locally-decoded block that is obtained by encoding the block to be encoded once and decoding the encoded block to be encoded, and an addition unit that adds, to encoded data of the block to be encoded, information indicating that the block to be encoded refers to the reference block for the in-loop filter.

公开(公告)号：EP3309969A1

公开(公告)日：2018-04-18

申请号：EP17204482.8

申请日：2012-06-21

申请人： Sun Patent Trust

发明人： SASAI, Hisao ,  NISHI, Takahiro ,  SHIBAHARA, Youji ,  SUGIO, Toshiyasu ,  TANIKAWA, Kyoko ,  MATSUNOBU, Toru

IPC分类号： H03M7/40 ,  H04N19/13 ,  H04N19/169 ,  H04N19/70 ,  H04N19/436 ,  H04N19/51 ,  H04N19/463 ,  H04N19/91

CPC分类号： H04N19/521 ,  H04N19/13 ,  H04N19/17 ,  H04N19/184 ,  H04N19/1887 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70 ,  H04N19/91

摘要： An image coding method includes (S801) coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding (S801) includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.

摘要翻译： 一种图像编码方法，包括：（S801）对表示运动矢量和预测运动矢量之间的差的运动矢量差进行编码，其中，编码（S801）包括：对作为以下之一的第一分量的一部分的第一部分进行编码： 运动矢量差的水平分量和垂直分量; 编码第二部分，所述第二部分是与所述第一分量不同并且是所述水平分量和所述垂直分量中的另一个的第二分量的一部分; 对作为所述第一组件的一部分并且与所述第一部分不同的第三部分进行编码; 对作为所述第二组件的一部分并且与所述第二部分不同的第四部分进行编码; 以及以所述顺序产生包括第一部分，第二部分，第三部分和第四部分的代码串。

公开(公告)号：EP3105926B1

公开(公告)日：2018-04-11

申请号：EP15706317.3

申请日：2015-02-04

申请人： Dolby International AB ,  Dolby Laboratories Licensing Corporation

发明人： SU, Guan-Ming ,  CHEN, Qian ,  YIN, Peng ,  WILLENBACHER, Ralf

IPC分类号： H04N19/52 ,  H04N19/182 ,  H04N19/105 ,  H04N19/30

CPC分类号： H04N19/139 ,  H04N19/105 ,  H04N19/182 ,  H04N19/30 ,  H04N19/52 ,  H04N19/521

摘要： Pixel data of a video sequence with enhanced dynamic range (EDR) are predicted based on pixel data of a corresponding video sequence with standard dynamic range (SDR) and a piecewise inter-layer predictor. The output parameters of the piecewise predictor are computed based atleast on two sets of pre-computed values and a prediction cost criterion. The first set of pre-computed values applies to all input SDR frames and comprises a set of SDR pixel values raised to one or more integer power terms. The second set of pre-computed values is frame specific and is computed based on a histogram of an input SDR frame and pixel values of the corresponding EDR frame. The pre-computed values allow for a fast iterative algorithm to identify the best pivot points for the piecewise polynomials according to a prediction cost and to solve for the coefficients of the piecewise predictor.

公开(公告)号：EP3264768A1

公开(公告)日：2018-01-03

申请号：EP16305826.6

申请日：2016-06-30

申请人： Thomson Licensing

发明人： BORDES, Philippe ,  RACAPE, Fabien ,  POIRIER, Tangi ,  GALPIN, Franck

IPC分类号： H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/14

CPC分类号： H04N19/52 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/521

摘要： In a particular implementation, a video decoder may decode an initial motion vector predictor from the bitstream for a current block, and perform motion search in a small search window to refine the initial motion vector predictor. The initial motion vector may be rounded before being refined. The motion refinement can be based on a discontinuity measure between pixels of a current block and pixels of adjacent block, and can also be based on gradients between the current block and adjacent blocks. The motion vector for the current block is then decoded based on the refined motion vector predictor, and the motion vector difference if there is any. The motion refinement can also be performed on the motion vector for the current block directly. Through motion refinement, the decoder may increase the motion resolution. A corresponding video encoder may choose whether to use motion refinement based on encoder decisions.

摘要翻译： 在特定实现中，视频解码器可以对来自当前块的比特流的初始运动矢量预测子进行解码，并且在小搜索窗口中执行运动搜索以优化初始运动矢量预测子。 初始运动矢量可以在精炼之前舍入。 运动细化可以基于当前块的像素和相邻块的像素之间的不连续性度量，并且也可以基于当前块和相邻块之间的梯度。 然后，根据细化的运动矢量预测值以及运动矢量差（如果有的话）对当前块的运动矢量进行解码。 运动细化也可以直接对当前块的运动矢量执行。 通过运动细化，解码器可以增加运动分辨率。 相应的视频编码器可以基于编码器决定来选择是否使用运动细化。

公开(公告)号：EP3107290A4

公开(公告)日：2017-09-20

申请号：EP15761972

申请日：2015-03-16

申请人： SAMSUNG ELECTRONICS CO LTD

发明人： PARK MIN-WOO ,  LEE JIN-YOUNG ,  CHO YONG-JIN ,  CHOI BYEONG-DOO

IPC分类号： H04N19/105 ,  H04N19/30 ,  H04N19/503 ,  H04N19/597

CPC分类号： H04N19/597 ,  H04N19/119 ,  H04N19/134 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/521

公开(公告)号：EP3090547A4

公开(公告)日：2017-07-12

申请号：EP15733228

申请日：2015-01-02

申请人： LG ELECTRONICS INC

发明人： GULERYUZ ONUR G

IPC分类号： H04N19/117 ,  H04N19/50 ,  H04N19/82

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/50 ,  H04N19/521 ,  H04N19/91

摘要： Disclosed herein is a method of calculating a displacement vector of a target region; determining an anchor region by using the calculated displacement vector; predicting a target region by linearly filtering the anchor region using a designed filter; and generating a prediction error by using the predicted target region.

摘要翻译： 本文公开了一种计算目标区域的位移矢量的方法; 通过使用所计算的位移矢量来确定锚区域; 通过使用设计的滤波器对锚区域进行线性滤波来预测目标区域; 并通过使用预测的目标区域来产生预测误差。

公开(公告)号：EP3151556A1

公开(公告)日：2017-04-05

申请号：EP16198143.6

申请日：2012-05-23

申请人： FUJITSU LIMITED

发明人： Shimada, Satoshi ,  Nakagawa, Akira ,  Kazui, Kimihiko ,  Koyama, Junpei

IPC分类号： H04N19/105 ,  H04N19/52 ,  H04N19/503 ,  H04N19/176 ,  H04N19/33 ,  H04N19/31 ,  H04N19/577

CPC分类号： H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/503 ,  H04N19/51 ,  H04N19/521 ,  H04N19/543 ,  H04N19/577 ,  H04N19/587

摘要： A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; a motion vector information storing unit configured to store motion vector information including motion vectors of blocks that are spatially and temporally adjacent to a target block to be decoded and reference picture identifiers indicating pictures that the motion vectors refer to; and a vector predictor generating unit configured to scale a vector predictor candidate for a motion vector of the target block based on the picture information and the motion vector information and to correct the scaled vector predictor candidate toward 0 by a predetermined amount.

摘要翻译： 视频解码装置包括：参考图像列表存储单元，被配置为存储图像的图像信息; 运动矢量信息存储单元，被配置为存储运动矢量信息，所述运动矢量信息包括与要解码的目标块空间和时间相邻的块的运动矢量，以及指示运动矢量所参照的图像的参考图像标识符; 以及矢量预测器生成单元，被配置为基于所述图像信息和所述运动矢量信息来缩放所述目标块的运动矢量的矢量预测器候选，并将所述经缩放的矢量预测器候选朝0校正预定量。

公开(公告)号：EP3076668A4

公开(公告)日：2017-02-22

申请号：EP14865962

申请日：2014-12-01

申请人： UNIV TONGJI ,  ZTE CORP

发明人： LIN TAO ,  LI MING ,  SHANG GUOQIANG

IPC分类号： H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593

CPC分类号： H04N19/119 ,  H04N19/12 ,  H04N19/176 ,  H04N19/51 ,  H04N19/517 ,  H04N19/521

公开(公告)号：EP3128485A1

公开(公告)日：2017-02-08

申请号：EP15306269.0

申请日：2015-08-05

申请人： Thomson Licensing

发明人： Hepper, Dietmar

IPC分类号： G06T7/20 ,  H04N19/53

CPC分类号： H04N19/53 ,  G06T7/207 ,  G06T2207/20016 ,  H04N19/521 ,  H04N19/57

摘要： In hierarchical motion estimation, in each motion estimation hierarchy level, a pixel block matcher for comparing correspondingly sampled pixel values of a current image and a delayed previous image is used in order to compute a motion vector for every pixel, wherein - by evaluating displaced frame differences in the measurement window - a segmentation of the measurement window into different moving object regions is performed. The corresponding segmentation information is stored, and the stored segmentation information is used as an initial segmentation mask for motion estimation in the following finer level of the motion estimation hierarchy. In the following finer level of the motion estimation hierarchy an updated segmentation information is determined. This processing continues until the finest level of said motion estimation hierarchy is reached. The resulting segmentation information values of successive search window positions can be combined.

摘要翻译： 通过评估位移帧 - 在每个运动估计层级分层运动估计，用于比较当前图像和延迟先前图像的相应采样的像素值的像素块匹配，以便计算用于每个像素，worin的运动矢量被用于 在测量窗口的差异 - 测量窗口为不同的移动对象区域的分割进行。 相应的分割信息被存储，并且所存储的分割信息被用作在初始分割掩码在运动估计层次结构的以下更精细的水平运动估计。 在分割更新信息的运动估计层次以下更细级别是确定的开采。 继续该处理，直至达到所述运动估计层次结构的最优秀的水平。 连续搜索窗中的位置所得到的分割信息值可以被组合。

公开(公告)号：EP1404135B1

公开(公告)日：2016-12-14

申请号：EP03021078.5

申请日：2001-01-19

申请人： Nokia Technologies Oy

发明人： KARCZEWICZ, Marta ,  LAINEMA, Jani

IPC分类号： H04N19/51 ,  H04N19/52 ,  H04N19/56 ,  H04N19/513 ,  H04N19/53 ,  H04N19/543 ,  H04N19/557 ,  G06T7/20

CPC分类号： H04N19/521 ,  G06T7/223 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/53 ,  H04N19/543 ,  H04N19/557 ,  H04N19/56