公开(公告)号：EP4404566A1

公开(公告)日：2024-07-24

申请号：EP22870307.0

申请日：2022-09-15

申请人： KT Corporation

发明人： LIM, Sung Won

IPC分类号： H04N19/513 ,  H04N19/176 ,  H04N19/105 ,  H04N19/56 ,  H04N19/70 ,  H04N19/543 ,  H04N19/57 ,  H04N19/132 ,  H04N19/593 ,  H04N19/119

CPC分类号： H04N19/105 ,  H04N19/513 ,  H04N19/119 ,  H04N19/70 ,  H04N19/593 ,  H04N19/132 ,  H04N19/176 ,  H04N19/57 ,  H04N19/56 ,  H04N19/543

摘要： A video decoding/encoding method includes obtaining a first prediction block for a current block on the basis of a first inter-prediction mode, obtaining a second prediction block for the current block on the basis of a second inter-prediction mode, and obtaining a final prediction block for the current block on the basis of the first prediction block and the second prediction block.

公开(公告)号：EP4393154A1

公开(公告)日：2024-07-03

申请号：EP22859542.7

申请日：2022-08-24

申请人： Tencent America LLC

发明人： ZHAO, Xin ,  XU, Xiaozhong ,  LIU, Shan

IPC分类号： H04N19/176

CPC分类号： H04N19/593 ,  H04N19/57 ,  H04N19/105 ,  H04N19/176 ,  H04N19/14 ,  H04N19/159 ,  H04N19/423

公开(公告)号：EP4391541A1

公开(公告)日：2024-06-26

申请号：EP22923454.7

申请日：2022-11-30

申请人： Tencent Technology (Shenzhen) Company Limited

发明人： ZHANG, Hongbin ,  KUANG, Wei

IPC分类号： H04N19/587

CPC分类号： H04N19/567 ,  H04N19/57 ,  H04N19/587 ,  H04N19/137 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172 ,  H04N19/117 ,  H04N19/176 ,  H04N19/52

摘要： Embodiments of the present application provide a motion estimation method and apparatus in an encoding process, a device, a storage medium, and a program product. The method comprises: acquiring a video frame to be encoded, and determining a target encoding block to be encoded in said video frame; acquiring reference motion information of an auxiliary encoding block of the target encoding block; determining a target reference image search range from M reference image lists for the target encoding block according to image search range information indicated by the reference motion information, the reference motion information of the auxiliary encoding block comprising: motion information of N adjacent encoding blocks adj acent to the target encoding block and motion information comprised in a reference encoding block list, and M being an integer greater than 1; and performing motion estimation on the target encoding block according to the target reference image search range.

公开(公告)号：EP2744204B1

公开(公告)日：2018-12-12

申请号：EP12831777.3

申请日：2012-09-14

申请人： Samsung Electronics Co., Ltd.

发明人： ALSHINA, Elena ,  CHEN, Jianle ,  HAN, Woo-jin

IPC分类号： H04N19/523 ,  H04N19/109 ,  H04N19/136 ,  H04N19/176 ,  H04N19/61 ,  H04N19/146 ,  H04N19/19

CPC分类号： H04N19/105 ,  H04N19/107 ,  H04N19/109 ,  H04N19/136 ,  H04N19/146 ,  H04N19/176 ,  H04N19/182 ,  H04N19/19 ,  H04N19/503 ,  H04N19/513 ,  H04N19/523 ,  H04N19/57 ,  H04N19/61

摘要： A method and apparatus for encoding and decoding a video. The method of encoding the video includes: determining whether a unidirectional motion estimation mode and a bidirectional motion estimation mode are used based on a size of a current prediction unit to be encoded, performing motion estimation and motion compensation on the current prediction unit by using the determined motion estimation mode, determining a motion estimation mode of the current prediction unit based on an encoding cost of the current prediction unit obtained through the motion estimation and the motion compensation, and encoding determined motion estimation mode information based on the size of the current prediction unit.

公开(公告)号：EP2553927B1

公开(公告)日：2018-11-28

申请号：EP11718431.7

申请日：2011-03-29

申请人： Orange

发明人： Amonou, Isabelle ,  Pateux, Stéphane ,  Cammas, Nathalie

IPC分类号： H04N19/52 ,  H04N19/70 ,  H04N19/61 ,  H04N19/553 ,  H04N19/57 ,  H04N19/583

CPC分类号： H04N19/583 ,  H04N19/52 ,  H04N19/553 ,  H04N19/57 ,  H04N19/61 ,  H04N19/70

公开(公告)号：EP2050279B1

公开(公告)日：2018-08-29

申请号：EP07836372.8

申请日：2007-07-31

申请人： Thomson Licensing

发明人： DIVORRA ESCODA, Oscar ,  YIN, Peng

IPC分类号： H04N19/119 ,  H04N19/146 ,  H04N19/176 ,  H04N19/57 ,  H04N19/70 ,  H04N19/61 ,  H04N19/117

CPC分类号： H04N19/57 ,  H04N19/117 ,  H04N19/119 ,  H04N19/126 ,  H04N19/13 ,  H04N19/146 ,  H04N19/156 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/543 ,  H04N19/61 ,  H04N19/70

摘要： There are provided methods and apparatus for adaptive geometric partitioning for video encoding and decoding. An apparatus includes an encoder for encoding image data corresponding to pictures by adaptively partitioning at least portions of the pictures responsive to at least one parametric model. The at least one parametric model involves at least one of implicit and explicit formulation of at least one curve.

公开(公告)号：EP2047687B1

公开(公告)日：2018-05-16

申请号：EP07836376.9

申请日：2007-07-31

申请人： Thomson Licensing DTV

发明人： DIVORRA ESCODA, Oscar ,  YIN, Peng

IPC分类号： H04N19/00

CPC分类号： H04N19/57 ,  H04N19/117 ,  H04N19/119 ,  H04N19/126 ,  H04N19/13 ,  H04N19/146 ,  H04N19/156 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/543 ,  H04N19/61 ,  H04N19/70

摘要： There are provided methods and apparatus for adaptive geometric partitioning for video encoding and decoding. An apparatus includes an encoder for encoding image data corresponding to pictures by adaptively partitioning at least portions of the pictures responsive to at least one parametric model. The at least one parametric model involves at least one of implicit and explicit formulation of at least one curve.

公开(公告)号：EP3306936A1

公开(公告)日：2018-04-11

申请号：EP16820797.5

申请日：2016-07-01

申请人： Huawei Technologies Co., Ltd.

发明人： WANG, Zhao ,  MA, Siwei ,  LV, Zhuoyi ,  YANG, Haitao

IPC分类号： H04N19/56

CPC分类号： H04N19/56 ,  H04N19/109 ,  H04N19/136 ,  H04N19/139 ,  H04N19/14 ,  H04N19/182 ,  H04N19/523 ,  H04N19/533 ,  H04N19/57

摘要： Embodiments of the present invention disclose a video coding method, a video decoding method, a video coding apparatus, and a video decoding apparatus. The method in the embodiments of the present invention includes: obtaining a current picture, and obtaining motion vector precision of the current picture according to the current picture, where the motion vector precision includes a search step size set, and each search step size in the search step size set is less than a pixel unit; obtaining a current block and a reference picture of the current block; determining a search start point in the reference picture, and searching, from the search start point, for a target integer pixel by using a pixel unit as a search step size; searching, from the target integer pixel, for a match block of the current block according to the motion vector precision; obtaining motion vector information and a prediction residual signal; and writing information about the reference picture, the motion vector information, and the prediction residual signal into a bitstream, where the information about the reference picture is used to indicate the reference picture. In the embodiments of the present invention, coding and decoding can be performed with reference to video features.

摘要翻译： 本发明的实施例公开了视频编码方法，视频解码方法，视频编码设备和视频解码设备。 本发明实施例的方法包括：获取当前图片，根据当前图片获取当前图片的运动矢量精度，运动矢量精度包括搜索步长集合，每个搜索步长 搜索步长设置小于一个像素单位; 获得当前块的当前块和参考图片; 确定参考图片中的搜索起始点，并且通过使用像素单元作为搜索步长来从搜索起点搜索目标整数像素; 根据所述运动矢量精度，从所述目标整像素中搜索当前块的匹配块; 获得运动矢量信息和预测残差信号; 以及将关于参考图片，运动矢量信息和预测残差信号的信息写入比特流中，其中关于参考图片的信息被用于指示参考图片。 在本发明的实施例中，可以参考视频特征来执行编码和解码。

公开(公告)号：EP3291557A1

公开(公告)日：2018-03-07

申请号：EP16795748.9

申请日：2016-03-30

申请人： Huawei Technologies Co., Ltd.

发明人： ZHANG, Hong ,  YANG, Haitao

IPC分类号： H04N19/52

CPC分类号： H04N19/521 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/52 ,  H04N19/53 ,  H04N19/54 ,  H04N19/57 ,  H04N19/573 ,  H04N19/82

摘要： The present invention provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a motion vector difference of an affine picture block; determining motion vector precision of the affine picture block; determining a size of an affine motion compensation picture subblock in the affine picture block according to the motion vector difference, the motion vector precision, and a distance between control points in the affine picture block, where the control points are pixels used to determine the motion vector difference; and performing coding processing on the affine picture block according to the size of the affine motion compensation picture subblock. In this way, a picture subblock of an appropriate size is selected, so that coding complexity can be reduced, and coding efficiency can be improved.

摘要翻译： 本发明提供一种视频图像编码方法，视频图像解码方法，编码装置和解码装置。 该方法包括：确定仿射图片块的运动矢量差; 确定仿射图像块的运动矢量精度; 根据运动矢量差值，运动矢量精度以及仿射图像块中控制点之间的距离确定仿射图像块中的仿射运动补偿图像子块的大小，其中控制点是用于确定运动的像素 矢量差异; 根据仿射运动补偿图像子块的大小对仿射图像块进行编码处理。 以这种方式，选择适当大小的图片子块，从而可以减少编码复杂度，并且可以提高编码效率。

公开(公告)号：EP3275188A1

公开(公告)日：2018-01-31

申请号：EP16718538.8

申请日：2016-03-25

申请人： QUALCOMM INCORPORATED

发明人： LI, Xiang ,  CHEN, Ying ,  ZHANG, Li ,  LIU, Hongbin ,  CHEN, Jianle ,  KARCZEWICZ, Marta

IPC分类号： H04N19/513 ,  H04N19/46 ,  H04N19/109 ,  H04N19/176 ,  H04N19/44 ,  H04N19/56 ,  H04N19/57 ,  H04N19/96 ,  H04N19/70

CPC分类号： H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/70 ,  H04N19/96

摘要： In an example, a method of processing video data includes splitting a current block of video data into a plurality of sub-blocks for deriving motion information of the current block, where the motion information indicates motion of the current block relative to reference video data. The method also includes deriving, separately for each respective sub-block of the plurality of sub-blocks, motion information comprising performing a motion search for a first set of reference data that corresponds to a second set of reference data outside of each respective sub-block. The method also includes decoding the plurality of sub-blocks based on the derived motion information and without decoding syntax elements representative of the motion information.