公开(公告)号：US20240364931A1

公开(公告)日：2024-10-31

申请号：US18763495

申请日：2024-07-03

Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.

Inventor： Xiaoyu XIU ,  Yi-Wen CHEN ,  Tsung-Chuan MA ,  Hong-Jheng JHU ,  Xianglin WANG ,  Bing YU

IPC: H04N19/70 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/174 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60

CPC classification number: H04N19/70 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/174 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60

Abstract: An electronic apparatus performs a method of decoding video data, including receiving, from bitstream, a first syntax element in a slice header of a slice that indicates whether luma mapping with chroma scaling (LMCS) is applied to a coding unit in the slice; receiving a second syntax element for the coding unit that indicates whether the coding unit has been coded using adaptive color-space transform (ACT); if the second syntax element has a non-zero value, decoding the coding unit by applying inverse ACT to convert luma and chroma residuals of the coding unit from a transformed color space to an original color space of the video data; and if the first syntax element has a non-zero value, decoding the coding unit by performing inverse luma mapping to the luma samples and inverse scaling to the chroma residuals of the coding unit after performing the inverse ACT.

公开(公告)号：US20240364889A1

公开(公告)日：2024-10-31

申请号：US18643559

申请日：2024-04-23

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Nikolai Konrad Leung ,  Thomas Stockhammer ,  Imed Bouazizi ,  Lindsey Makana Kostas

IPC: H04N19/127 ,  H04N19/136 ,  H04N19/172 ,  H04N19/426 ,  H04N19/43

CPC classification number: H04N19/127 ,  H04N19/136 ,  H04N19/426 ,  H04N19/43 ,  H04N19/172

Abstract: A first device may perform a first part of a computing graph to extract a feature map from media (e.g., video) data. The first device may buffer the media data and compress the feature map. The first device may then send the compressed feature map to a second device, which may perform a second part of the computing graph (e.g., processing tasks), e.g., to perform object detection or other such tasks. The second device may request at least a portion of the buffered media data when needed, e.g., to improve accuracy of the second part of the computing graph/processing tasks. Thus, the second device may send a request to the first device for the at least portion of the buffered media data, then perform the second part of the computing graph using the buffered media data and the received feature map.

公开(公告)号：US12132936B2

公开(公告)日：2024-10-29

申请号：US18377318

申请日：2023-10-06

Applicant: Sony Group Corporation

Inventor： Masaru Ikeda

IPC: H04N19/80 ,  H04N19/117 ,  H04N19/124 ,  H04N19/136 ,  H04N19/182 ,  H04N19/42 ,  H04N19/82 ,  H04N19/86 ,  H04N19/176

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/124 ,  H04N19/136 ,  H04N19/182 ,  H04N19/42 ,  H04N19/82 ,  H04N19/86 ,  H04N19/176

Abstract: The present technology relates to an image processing device and an image processing method which allow a deblocking filtering process to apply filtering appropriately. A pixel (p01) of which the value is 255 (solid line) before a deblocking process changes greatly to 159 (dot line) after a conventional deblocking process. Therefore, a clipping process having a clipping value of 10 is performed in strong filtering, whereby the pixel (p01) of which the value is 255 (solid line) before the deblocking process becomes 245 (bold line). Thus, a change in the pixel value occurring in the conventional technique can be suppressed as much as possible. This disclosure can be applied to an image processing device, for example.

公开(公告)号：US12132908B2

公开(公告)日：2024-10-29

申请号：US18232125

申请日：2023-08-09

Applicant: LG Electronics Inc.

Inventor： Hyeong Moon Jang ,  Jin Heo ,  Jung Hak Nam ,  Jangwon Choi

IPC: H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

CPC classification number: H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/96

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure comprises determining whether to apply intra prediction to a current chroma block based on information on prediction of the current chroma block, deriving an intra prediction mode of the current chroma block based on an intra prediction mode of a corresponding luma block corresponding to the current chroma block and intra chroma prediction mode information of the current chroma block, when intra prediction applies to the current chroma block, and generating a prediction block of the current chroma block, by performing intra prediction based on the intra prediction mode of the current chroma block. When the intra prediction mode of the corresponding luma block is not present, the intra prediction mode of the current chroma block is derived based on a default intra prediction mode.

公开(公告)号：US12132890B2

公开(公告)日：2024-10-29

申请号：US18205058

申请日：2023-06-02

Applicant: OP Solutions LLC

Inventor： Borivoje Furht ,  Hari Kalva ,  Velibor Adzic

IPC: H04N19/136 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/44 ,  H04N19/513 ,  H04N19/593

CPC classification number: H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/513 ,  H04N19/593

Abstract: An encoder configured to generate an encoded bitstream for decoding by a compatible decoder, wherein the decoder receives the encoded bitstream with a current picture including a current block having a first partition boundary partitioning the block into first and second non-rectangular regions and a second partition boundary, intersecting the first partition boundary, and partitioning the second non-rectangular region into three portions. Using the encoded bitstream, the decoder determines a first predictor for use within the first non-rectangular region using a first motion vector selected from a first list of motion vector candidates, determines a second predictor for use within the second non-rectangular region using a second motion vector selected from a second list of motion vector candidates; and decodes the current block using the first predictor and the second predictor. Decoding further includes smoothing the first predictor and the second predictor across the first partition boundary.

公开(公告)号：US20240357137A1

公开(公告)日：2024-10-24

申请号：US18763497

申请日：2024-07-03

Applicant: InterDigital VC Holdings, Inc.

Inventor： Fabrice Leleannec ,  Tangi Poirier ,  Ya Chen ,  Philippe Bordes

IPC: H04N19/186 ,  H04N19/136 ,  H04N19/176

CPC classification number: H04N19/186 ,  H04N19/136 ,  H04N19/176

Abstract: A Local illumination compensation system for video encoding and decoding uses memory for storing illumination compensation parameters and does not require access to reconstructed pixels of neighboring blocks. A set of illumination compensation parameters is stored in a dedicated buffer, which is of limited size, and which is decoupled from the coding unit level storage of information. The buffer contains a set of illumination compensation parameters, which may be, for example, computed (or determined in some other manner) on the fly or determined beforehand (for example for example obtained from the video signal or from a device).

公开(公告)号：US20240357136A1

公开(公告)日：2024-10-24

申请号：US18753511

申请日：2024-06-25

Applicant: LG ELECTRONICS INC.

Inventor： Moonmo Koo ,  Seunghwan Kim ,  Jaehyun Lim

IPC: H04N19/186 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

CPC classification number: H04N19/186 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

Abstract: An image decoding method according to the present document comprises the step of deriving modified transform coefficients, wherein the step of deriving the modified transform coefficients comprises the step of parsing an LFNST index on the basis of a variable indicating whether an ISP is applied to a current block or whether an effective coefficient is present in a DC component of the current block, according to the tree type of the current block, wherein the variable may be derived on the basis of an individual transform skip flag value for a color component of the current block.

公开(公告)号：US12126823B2

公开(公告)日：2024-10-22

申请号：US17700845

申请日：2022-03-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye-Kui Wang

IPC: H04N19/46 ,  H04N19/107 ,  H04N19/11 ,  H04N19/136 ,  H04N19/14 ,  H04N19/172 ,  H04N19/184 ,  H04N19/187 ,  H04N19/43 ,  H04N19/593

CPC classification number: H04N19/46 ,  H04N19/107 ,  H04N19/11 ,  H04N19/136 ,  H04N19/14 ,  H04N19/172 ,  H04N19/184 ,  H04N19/187 ,  H04N19/43 ,  H04N19/593

Abstract: A method of decoding implemented by a video decoder is provided. The method includes receiving a bitstream including a coded video sequence start (CVSS) access unit (AU), wherein the CVSS AU contains a picture unit (PU) for each layer, and wherein a coded picture in each PU is a coded layer video sequence start (CLVSS) picture; identifying the coded picture from one of the layers based on a picture order count (POC) value; and decoding the coded picture to obtain a decoded picture.

公开(公告)号：US12126820B2

公开(公告)日：2024-10-22

申请号：US18077810

申请日：2022-12-08

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang

IPC: H04N19/184 ,  H04N19/136 ,  H04N19/169 ,  H04N19/30 ,  H04N19/433 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/184 ,  H04N19/136 ,  H04N19/188 ,  H04N19/30 ,  H04N19/433 ,  H04N19/46 ,  H04N19/70

Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream includes one or more output layer sets comprising one or more video layers according to a format rule, wherein the format rule specifies that a non-scalable-nested supplemental enhancement information, SEI, message that includes information regarding hypothetical reference decoder, HRD, is applicable to all output layer sets that include same video layers as the bitstream.

公开(公告)号：US20240348812A1

公开(公告)日：2024-10-17

申请号：US18636607

申请日：2024-04-16

Applicant: TENCENT AMERICA LLC

Inventor： Iraj SODAGAR

IPC: H04N19/44 ,  H04N19/136 ,  H04N19/70

CPC classification number: H04N19/44 ,  H04N19/136 ,  H04N19/70

Abstract: Method, apparatus, and system for haptic signal processing are provided. The process may include receiving a media stream comprising at least one haptic track and at least one video track. The process may include receiving a media stream, in a case that the data is in the haptics interchange format, obtaining a first syntax, from the media stream, and determining, from the first syntax, a scheme used for a semantic description of effects of the media stream, in a case that the data is in the haptics streaming format, obtaining a second syntax, from the media stream, and determining, from the second syntax, the scheme used for a semantic description of effects of the media stream and a number of characters in the scheme, and controlling decoding of the media stream based determining the scheme.