公开(公告)号：US20250071278A1

公开(公告)日：2025-02-27

申请号：US18943180

申请日：2024-11-11

Applicant: SONY GROUP CORPORATION

Inventor： JUN XU

IPC: H04N19/124 ,  H03M7/30 ,  H03M7/40 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: Video coding systems or apparatus utilizing context-based adaptive binary arithmetic coding (CABAC) during encoding and/or decoding, are configured according to the invention with an enhanced binarization of non-zero Delta-QP (dQP). During binarization the value of dQP and the sign are separately encoded using unary coding and then combined into a binary string which also contains the dQP non-zero flag. This invention capitalizes on the statistical symmetry of positive and negative values of dQP and results in saving bits and thus a higher coding efficiency.

公开(公告)号：US12231677B2

公开(公告)日：2025-02-18

申请号：US18171243

申请日：2023-02-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Guillaume Laroche ,  Christophe Gisquet ,  Patrice Onno ,  Jonathan Taquet

IPC: H04N19/56 ,  H04N19/13 ,  H04N19/184

Abstract: A method of encoding a motion vector predictor index, in particular a Merge index, comprises generating a list of motion vector predictor candidates, in particular merge candidates. The list includes an ATMVP candidate. One of the motion vector predictor candidates in the list is selected. A motion vector predictor index for the selected motion vector predictor candidate is generated using CABAC coding. One or more bits of the motion vector predictor index are bypass CABAC coded. For example, only the first bit of the motion vector predictor index is CABAC coded using a single context.

公开(公告)号：US20250047853A1

公开(公告)日：2025-02-06

申请号：US18923375

申请日：2024-10-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sergey Yurievich IKONIN ,  Roman Igorevich CHERNYAK ,  Timofey Mikhailovich SOLOVYEV ,  Alexander Alexandrovich KARABUTOV ,  Jianle CHEN ,  Elena Alexandrovna ALSHINA

IPC: H04N19/126 ,  H04N19/124 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44

Abstract: A method of obtaining a chrominance quantization parameter (QP) for chrominance components based on a luminance QP for luminance component, wherein the method is performed by a decoder, comprising parsing a received bitstream to obtain the luminance QP and information of a mapping function (ƒ) which associates a QP index (QPi) to the chrominance QP (QPc); obtaining the QPi based at least in a part on the luminance QP; obtaining the mapping function based on the obtained information; and obtaining a QPc based on the obtained mapping function and the obtained QPi.

公开(公告)号：US12219172B2

公开(公告)日：2025-02-04

申请号：US18171231

申请日：2023-02-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Guillaume Laroche ,  Christophe Gisquet ,  Patrice Onno ,  Jonathan Taquet

IPC: H04N19/56 ,  H04N19/13 ,  H04N19/184

Abstract: A method of encoding a motion vector predictor index, in particular a Merge index, comprises generating a list of motion vector predictor candidates, in particular merge candidates. The list includes an ATMVP candidate. One of the motion vector predictor candidates in the list is selected. A motion vector predictor index for the selected motion vector predictor candidate is generated using CABAC coding. One or more bits of the motion vector predictor index are bypass CABAC coded. For example, only the first bit of the motion vector predictor index is CABAC coded using a single context.

公开(公告)号：US20250039432A1

公开(公告)日：2025-01-30

申请号：US18716867

申请日：2022-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyeongmoon JANG

IPC: H04N19/52 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184

Abstract: An image decoding/encoding method and device according to the present disclosure may: acquire a first flag indicating whether an intra derivation mode is applied to a current block; acquire a second flag indicating whether BDPCM is applied to a chroma component of the current block, on the basis of the first flag; derive an intra prediction mode of the chroma component on the basis of the second flag; and generate a prediction sample of the chroma component on the basis of the intra prediction mode.

公开(公告)号：US12206909B2

公开(公告)日：2025-01-21

申请号：US18338192

申请日：2023-06-20

Applicant: Robert Bosch GmbH

Inventor： Claus Spizig

IPC: G06F3/06 ,  B60W50/14 ,  H04N19/184 ,  H04N19/467 ,  H04N19/86

Abstract: A method for a provision of data. The method includes the following steps carried out in an automated manner: ascertaining the data in a vehicle; carrying out a preparation of the ascertained data, in which a data portion of the data is removed and an artificially generated and reproducible replacement portion is defined by an item of replacement information as an approximation of the removed data portion in order to prepare the data for lossless data compression; carrying out the data compression of the prepared data; initiating a transmission of the data compressed by the data compression via a mobile radiotelephone network, in which the replacement information is transmitted instead of the data portion.

公开(公告)号：US12206868B2

公开(公告)日：2025-01-21

申请号：US18675251

申请日：2024-05-28

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu ,  Qian Xu

IPC: H04N19/184 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/625 ,  H04N19/64 ,  H04N19/70 ,  H04N19/91

Abstract: Methods and apparatus are provided for encoding and decoding binary sets using adaptive tree selection. In one exemplary encoding method embodiment, picture data is encoded for a block in a picture; in which one of a plurality of trees structures is selected to code a binary set of data for indicating coefficient significance for the block. In another exemplary encoding method embodiment, picture data is encoded for a block in a picture, in which one or more trees are used to encode a binary set of data for indicating significance for the block, the one or more trees each having a plurality of nodes, at least one of the nodes of the one or more trees being modified responsive to at least one parameter.

公开(公告)号：US12206867B2

公开(公告)日：2025-01-21

申请号：US17904137

申请日：2021-02-08

Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION

Inventor： Takefumi Nagumo ,  Takuya Kitamura

IPC: H04N19/184 ,  H04N19/124 ,  H04N19/166

Abstract: There is provided an information processing device and method capable of suppressing an increase in load of processing of sensing data. A bit depth of intermediate data generated from sensing data obtained in a sensor of an indirect time-of-flight (TOF) system is corrected, and the intermediate data with the bit depth corrected is encoded, and coded data is generated. For example, the bit depth of the intermediate data is corrected using a gamma curve that is a predetermined curve indicating input-output characteristics. The present disclosure can be applied to, for example, an image processing device, an image encoding device, an image decoding device, an imaging element, an imaging device, or the like.

公开(公告)号：US12200242B2

公开(公告)日：2025-01-14

申请号：US18156040

申请日：2023-01-18

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Jizheng Xu ,  Yue Wang

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52

Abstract: Devices, systems, and methods for digital video coding, which includes constructing separate motion candidate lists for video coding, are described. An exemplary method for video processing includes constructing, for a first video block of a video, a first motion candidate list using a first motion candidate list construction method that excludes motion candidates that are only derived from temporal blocks, and performing a conversion between the first video block and a bitstream representation of the video including the first video block according to the constructed first motion candidate list.

公开(公告)号：US12200236B2

公开(公告)日：2025-01-14

申请号：US18340402

申请日：2023-06-23

Applicant: GE Video Compression, LLC

Inventor： Yago Sánchez De La Fuente ,  Karsten Sühring ,  Cornelius Hellge ,  Thomas Schierl ,  Robert Skupin ,  Thomas Wiegand

IPC: H04N19/423 ,  H04N19/169 ,  H04N19/172 ,  H04N19/184 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/85

Abstract: An apparatus (200) for receiving an input video data stream according to an embodiment is provided. The input video data stream has a video encoded thereinto. The apparatus (200) is configured to generate an output video data stream from the input video data stream.