公开(公告)号：US12126837B2

公开(公告)日：2024-10-22

申请号：US17792641

申请日：2021-01-15

申请人： LG ELECTRONICS INC.

发明人： Seethal Paluri ,  Hendry Hendry

IPC分类号： H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/70 ,  H04N19/82

CPC分类号： H04N19/70 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/82

摘要： According to embodiments of the present document, a zero-order exponential Golomb coding scheme(ue(v)) is used for a parsing procedure of an information/syntax element related to luma/chroma ALF filter coefficient absolute values, so that operational overhead and complexity can be reduced. In addition, since the range of values of the information related to the luma/chroma ALF filter coefficient absolute values is fixed, coding that uses ue(v) can be efficiently performed.

公开(公告)号：US20240333971A1

公开(公告)日：2024-10-03

申请号：US18742619

申请日：2024-06-13

申请人： LG Electronics Inc.

发明人： Jaehyun LIM ,  Byeongmoon JEON ,  Seungwook PARK ,  Jaewon SUNG ,  Jungsun KIM ,  Yongjoon JEON ,  Joonyoung PARK ,  Younghee CHOI

IPC分类号： H04N19/593 ,  G06V10/20 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/80 ,  H04N19/82

CPC分类号： H04N19/593 ,  G06V10/20 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/80 ,  H04N19/82

摘要： New intra planar modes are introduced for predicting digital video data. As part of the new intra planar modes, various methods are offered for predicting a first sample within a prediction unit, where the first sample is needed for referencing to when processing the new intra planar modes. And once the first sample is successfully predicted, the new intra planar modes are able to predict a sample of video data within the prediction unit by processing a bi-linear interpolation of four previously reconstructed reference samples.

公开(公告)号：US20240333936A1

公开(公告)日：2024-10-03

申请号：US18740109

申请日：2024-06-11

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

发明人： Sea Nae Park ,  Joo Hyung Byeon ,  Dong Gyu Sim ,  Jin Heo ,  Seung Wook Park

IPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/50 ,  H04N19/82

CPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/50 ,  H04N19/82

摘要： A method and an apparatus are disclosed for video coding using a mapping of residual signals. The video coding method and the apparatus enable the video encoding device to transmit mapping data related to a mapping of the residual signals of the current block to improve video coding efficiency and enhance video quality. The video coding method and the apparatus enable the video decoding device to decode the residual signals based on the mapping data.

公开(公告)号：US20240314331A1

公开(公告)日：2024-09-19

申请号：US18674791

申请日：2024-05-24

申请人： Velos Media, LLC

发明人： Yukinobu Yasugi

IPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

CPC分类号： H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

摘要： A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.

公开(公告)号：US12075050B2

公开(公告)日：2024-08-27

申请号：US17629597

申请日：2020-08-20

申请人： LG Electronics Inc.

发明人： Jie Zhao ,  Seethal Paluri ,  Seunghwan Kim

IPC分类号： H04N19/124 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

CPC分类号： H04N19/124 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： A method by which a decoding device decodes an image, according to the present document, comprises the steps of: acquiring image information; and generating a reconstruction picture on the basis of the image information.

公开(公告)号：US12069267B2

公开(公告)日：2024-08-20

申请号：US17930997

申请日：2022-09-09

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： H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

CPC分类号： H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

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：US20240251095A1

公开(公告)日：2024-07-25

申请号：US18241011

申请日：2023-08-31

申请人： Tencent America LLC

发明人： Lien-Fei CHEN ,  Xiaozhong XU ,  Xin ZHAO ,  Roman CHERNYAK ,  Shan LIU

IPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/129 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/70

CPC分类号： H04N19/50 ,  H04N19/105 ,  H04N19/129 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/70

摘要： Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry receives coded information of a current block in a current picture from a coded video bitstream, the coded information is indicative of applying local illumination compensation (LIC) on the current block according to a reference block in a reference picture. The processing circuitry constructs a parameter set list for the LIC, the parameter set list comprising a plurality of parameter sets for the LIC, and determines a selected parameter set from the parameter set list according to an index that is decoded from the coded video bitstream. The processing circuitry performs the LIC on the current block based on the selected parameter set to generate compensated samples of the current block according to the reference block in the reference picture.

公开(公告)号：US20240244229A1

公开(公告)日：2024-07-18

申请号：US18621555

申请日：2024-03-29

申请人： OP Solutions, LLC

发明人： Hari Kalva ,  Borivoje Furht ,  Velibor Adzic

IPC分类号： H04N19/154 ,  H04N19/136 ,  H04N19/169 ,  H04N19/172 ,  H04N19/50 ,  H04N19/65

CPC分类号： H04N19/154 ,  H04N19/136 ,  H04N19/172 ,  H04N19/188 ,  H04N19/50 ,  H04N19/65

摘要： A system for predictive coding includes a computing device configured to receive an input video, determine a quality impact as a function of the input video, wherein determining the quality impact further comprises identifying a frame drop indicator as a function of the input video, and determining the quality impact as a function of the frame drop indicator, and produce an encoded video as a function of the quality impact and an encoding process.

公开(公告)号：US12041260B2

公开(公告)日：2024-07-16

申请号：US17976556

申请日：2022-10-28

申请人： Tencent America LLC

发明人： Xiaozhong Xu ,  Shan Liu

IPC分类号： H04N19/50 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44

CPC分类号： H04N19/50 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44

摘要： Aspects of the disclosure provide a method and an apparatus including processing circuitry that decodes prediction information indicating a cross-component linear model (CCLM) mode being applied to a chroma block in a current picture. For a first region in the chroma block, the processing circuitry determines a first adjustment value used to modify an offset parameter in the CCLM mode based on a first subset of reconstructed samples in a luma block collocated with the chroma block. The first subset of the reconstructed samples does not include one or more samples in the luma block. The processing circuitry updates the offset parameter based on the first adjustment value. The processing circuitry determines a second adjustment value used to modify a slope parameter in the CCLM mode based on a second subset of the reconstructed samples in the luma block and updates the slope parameter based on the second adjustment value.

公开(公告)号：US20240223795A1

公开(公告)日：2024-07-04

申请号：US18604775

申请日：2024-03-14

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Jonatan SAMUELSSON ,  Rickard SJÖBERG

IPC分类号： H04N19/50 ,  H04N19/423 ,  H04N19/44 ,  H04N19/70

CPC分类号： H04N19/50 ,  H04N19/423 ,  H04N19/44 ,  H04N19/70

摘要： An object of the embodiments is to achieve an improved reference picture handling. That is achieved by taking into account whether the reference pictures in the decoded picture buffer are long-term reference pictures or short-term reference pictures when determining how they should be marked when the information of the reference picture set is received. The reference pictures are marked as “used for short-term reference” or “used for long-term reference” in the Decoded Picture Buffer (DPB) depending on whether they are included as short-term pictures or long-term pictures in the RPS of a current picture.