公开(公告)号：US11677924B2

公开(公告)日：2023-06-13

申请号：US17124898

申请日：2020-12-17

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Wilhelmus Hendrikus Alfonsus Bruls ,  Arnaud Pierre Herve Bourge

IPC分类号： H04N11/04 ,  H04N13/00 ,  H04N13/161 ,  H04N21/2365 ,  H04N19/30 ,  H04N19/88 ,  H04N21/2343 ,  H04N21/434 ,  H04N21/81 ,  H04N19/597 ,  H04N19/70 ,  H04W56/00 ,  H04W52/02 ,  H04L12/18 ,  H04W72/04

CPC分类号： H04N13/161 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70 ,  H04N19/88 ,  H04N21/2365 ,  H04N21/234327 ,  H04N21/4347 ,  H04N21/816 ,  H04L12/1881 ,  H04W52/0216 ,  H04W56/001 ,  H04W56/0015 ,  H04W72/04

摘要： Video data signals are encoded such that the encoded video data signal comprises at least a primary and at least a secondary video data signal. The primary and secondary video data signal are jointly compressed. The primary video data signal is compressed in a self-contained manner, and the secondary video data signal is compressed using data from the primary video data signal. The jointly compressed video data signal is split into separate bitstreams, at least a primary bitstream comprising data for the primary video data signal and at least a secondary bitstream comprising data for the secondary video data signal, whereafter the primary and secondary bitstreams are multiplexed into a multiplexed signal, and the primary and secondary signals are provided with separate codes.

公开(公告)号：US11546603B2

公开(公告)日：2023-01-03

申请号：US17387618

申请日：2021-07-28

申请人： MediaTek Inc.

发明人： Man-Shu Chiang ,  Chun-Chia Chen ,  Chih-Wei Hsu

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/137 ,  H04N19/176 ,  H04N19/30 ,  H04N19/105

摘要： A video coder receives data from a bitstream for a block of pixels to be encoded or decoded as a current block of a current picture of a video. Upon determining that an applied block setting of the current block satisfies a threshold condition, the video coder generates a first prediction based on a first motion information for a first prediction unit of the current block. The video coder generates a second prediction based on a second motion information for a second prediction unit of the current block. The video coder generates a third prediction based on the first and second motion information for an overlap prediction region that is defined based on a partitioning between the first prediction unit and the second prediction unit. The video coder encodes or decodes the current block by using the first, second, and third predictions.

公开(公告)号：US11528502B2

公开(公告)日：2022-12-13

申请号：US17283168

申请日：2019-10-18

申请人： CANON KABUSHIKI KAISHA

发明人： Guillaume Laroche ,  Christophe Gisquet ,  Patrice Onno ,  Jonathan Taquet

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/513 ,  H04N19/13 ,  H04N19/44 ,  H04N19/70

摘要： A method of encoding a motion information predictor index for an Affine Merge mode, comprising: generating a list of motion information predictor candidates; selecting one of the motion information predictor candidates in the list as an Affine Merge mode predictor; and generating a motion information predictor index for the selected motion information predictor candidate using CABAC coding, one or more bits of the motion information predictor index being bypass CABAC coded.

公开(公告)号：US11516474B2

公开(公告)日：2022-11-29

申请号：US17232811

申请日：2021-04-16

申请人： GE VIDEO COMPRESSION, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H04N19/124 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H03M7/42

摘要： A decoder includes an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value.

公开(公告)号：US20220353495A1

公开(公告)日：2022-11-03

申请号：US17857874

申请日：2022-07-05

申请人： Beijing Bytedance Network Technology Co., Ltd.

发明人： Weijia Zhu ,  Jizheng Xu ,  Li Zhang ,  Kai Zhang ,  Yue Wang

IPC分类号： H04N19/105 ,  H04N19/196 ,  H04N19/12 ,  H04N11/04 ,  H04N19/186

摘要： A method for implementing an adaptive color transform (ACT) during image/video encoding and decoding, comprises determining, for a conversion between a video comprising a block and a bitstream of the video, that a size of the block is greater than a maximum allowed size for an ACT mode, and performing, based on the determining, the conversion, wherein, in response to the size of the block being greater than the maximum allowed size for the ACT mode, the block is partitioned into multiple sub-blocks, and wherein each of the multiple sub-blocks share a same prediction mode, and the ACT mode is enabled at a sub-block level.

公开(公告)号：US11463735B2

公开(公告)日：2022-10-04

申请号：US17130826

申请日：2020-12-22

申请人： Panasonic Intellectual Property Corporation of America

发明人： Noritaka Iguchi ,  Toshiyasu Sugio

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/70 ,  H04N19/177 ,  H04N19/184

摘要： A three-dimensional data encodes method of encoding three-dimensional data items in time series. Each of the three-dimensional data items includes a geometry information item and an attribute information item in association with a same time point. The three-dimensional data encoding method includes: first encoding of encoding the geometry information item; and second encoding of encoding the attribute information item with reference to the geometry information item associated with the same time point. The geometry information item and the attribute information item that are in association with the same time point are included in an access unit.

公开(公告)号：US11388442B2

公开(公告)日：2022-07-12

申请号：US17217404

申请日：2021-03-30

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Dejun Zhang ,  Tian Wang ,  Vladyslav Zakharchenko

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/70 ,  H04N19/172 ,  H04N19/177 ,  H04N19/184

摘要： Example point cloud encoding apparatus and point cloud decoding apparatus are provided for effectively encoding and decoding point cloud data. The point cloud encoding apparatus is configured for obtaining auxiliary information of a union occupancy map corresponding to a point cloud group, where the point cloud group includes N frames of point clouds, N≥2, and N is an integer. The union occupancy map is a union set of occupancy maps of N patches having a matching relationship in the N frames of point clouds, and the auxiliary information of the union occupancy map is used to determine auxiliary information of the N patches. A syntax element is encoded into a bitstream, where the syntax element includes the auxiliary information of the union occupancy map.

公开(公告)号：US11356667B2

公开(公告)日：2022-06-07

申请号：US16640908

申请日：2019-12-10

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Rickard Sjöberg ,  Mitra Damghanian ,  Martin Pettersson

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/132 ,  H04N19/174 ,  H04N19/169 ,  H04N19/46 ,  H04N19/70

摘要： There are provided mechanisms for processing encoded image data. The method comprises receiving an encoded bitstream comprising parameter set information. The parameter set information may comprise a syntax indicator, a first coded portion comprising first coded sample information for a picture and a second coded portion comprising second coded sample information for the picture. The method further comprises, responsive to a first value of the syntax indicator, decoding the first coded sample information using a picture header syntax element from a picture header of the encoded bitstream. The method further comprises, responsive to the first value of the syntax indicator, decoding the second coded sample information using the picture header syntax element from the picture header of the encoded bitstream.

公开(公告)号：US11350144B2

公开(公告)日：2022-05-31

申请号：US17182143

申请日：2021-02-22

申请人： AT&T Intellectual Property I, L.P.

发明人： Georgios Vastardis

IPC分类号： H04N11/04 ,  H04N21/2365 ,  H04N21/24 ,  H04N21/236 ,  H04N21/2368

摘要： In one example, a method includes monitoring a delivery of an item of multimedia content to a first user endpoint device in a first stream of data, monitoring a delivery of the item of multimedia content to a second user endpoint device in a second stream of data, consolidating the stream of data and the second stream of data into a third stream of data, sending an first instruction to a source of the first stream of data and a source of the second stream of data to cease delivering the first stream of data and the second stream of data, and sending a second instruction to the source of the first stream of data and the source of the second stream to begin delivering the third stream of data to the first user endpoint device and the second user endpoint device.

公开(公告)号：US11330286B2

公开(公告)日：2022-05-10

申请号：US16883359

申请日：2020-05-26

申请人： Imagination Technologies Limited

发明人： Steven Fishwick

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/513 ,  H04N19/577 ,  H04N7/01 ,  H04N5/14 ,  H04N19/167 ,  H04N19/172 ,  H04N19/182

摘要： A motion estimation technique finds first and second candidate bi-directional motion vectors for a first region of an interpolated frame of video content by performing double ended vector motion estimation on the first region. One of these candidate bi-directional motion vectors is selected, and used to identify a remote region of the interpolated frame. This remote region is located at an off-set location from the first region, and is found based on an endpoint of the selected candidate bi-directional motion vector. A remote motion vector for the remote region of the interpolated frame is obtained, and one or more properties of this remote motion vector are used to bias a selection between the first and second candidate vectors.