Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Vivo Mobile Communication Co., Ltd.

Hyundai Motor Company

Rosedale Dynamics LLC

Xiaomi Inc.

Kia Corporation

Beijing Xiaomi Mobile Software Co., Ltd.

Virginia Tech Intellectual Properties, Inc.

University of California

Kia Motors Corporation

Samsung Sdi Co., Inc.

Kimberly-clark Worldwide, Inc.

Kwangwoon University Industry-academic Collaboration Foundation

Jin Seong Heo

Jangwon Choi

Sunmi Yoo Yoo

Seunghwan Kim

Jungah Choi

Ling Li

Jaehyun Lim

Eunyong Son

Junghak Nam

Sehoon Yea

Hwiyeol Park

Huisu Jeong

Moonmo Koo

Kyounghwan Kim

Sungjin Lim

Taesup Kim

Jaewon Sung

Seung Hwan Kim

Yongjoon Jeon

Seungwook Park

Jungdong Seo

Hyeongmoon Jang

Jung Hak Nam

Jaeho Lee

Jeong Woo Lee

Jong-Min Kim

Seung Wook Park

Dongmin Im

Young-jun Park

Hyun-chul Lee

Heungchan Lee

Naeri Park

Jong Ho Lee

Chulkeun Kim

Dong Gyu Sim

Hyunsoo Kim

Hyeong Moon Jang

Dongjin Lee

Dave Allen Soerens

David William Koenig

Woo Yong Sung

Sea Nae Park

Sun-ae Seo

Hyun Chul Lee

Jiwook Jung

Hojung Yang

Junhyeong Lee

Jeongkuk Shon

Kyunghoon Cho

Bumshik Lee

Seunghoon Nam

Han-Gu Kim

Wonmoon Cheon

Donggi Lee

Jae-Hyok Ko

Seongsik Hwang

Seungho Lim

Woonhyug Jee

Haeri Lee

Jae-Hwa Lee

Jong-Kyu Song

Kang-hee Lee

Hyunchul Lee

Doo-hwan Lee

Jaemyung Lee

Shashank Priya

Chanhee Jeon

Kyuwoon Kim

Kyung-hoon Cho

Hwi-yeol Park

Hye-Jung Cho

Kaiyuan Yang

Hyun-jong Chung

Andrew Thomas Baker

Minho Kim

Young-jae Kim

Wooyoung Yang

Mokwon Kim

Carl Gerard Rippl

Joo Hyung Byeon

Joseph R Feldkamp

WanDuk Lee

Dong-Chul Kim

Yun-sung Woo

Michael J Heller

Min Woo Han

Jose Kollakompil Abraham

Kathleen C Engelbrecht

Soonhyun Cha

Young-jun Song

Waihong Leong

Divesh Bhatt

ChangSu Kim

Jae Hyuk Oh

Keunha Choi

Jaehyun Yoo

Kyoung-hwan Choi

Jong-rock Choi

Kyu Won Kim

Dong Hyun Hwang

An image decoding method performed by a decoding apparatus according to the present document is characterized by comprising the steps of: acquiring image information; and generating a reconstructed picture on the basis of the image information.

Image decoding method and apparatus therefor

A video decoding method according to the present document is characterized by comprising: obtaining Most Probable Mode (MPM) index information and reference line index information from a bitstream; compiling an MPM list including candidate intra prediction modes for the intra prediction of a current block; deriving an intra prediction mode for the current block from among the candidate intra prediction modes included in the MPM list on the basis of the MPM index information; generating prediction samples for the current block on the basis of the intra prediction mode; and generating reconstructed samples for the current block on the basis of the prediction samples, wherein the step for compiling the MPM list involves deriving a DC mode as one of the candidate intra prediction modes, and including the DC mode in the MPM list, the DC mode being derived on the basis of the value of reference line index information indicating a reference line used for the intra prediction of the current block not being zero.

MPM list-based intra prediction method and device

A method by which a decoding device decodes an image, according to the present document, comprises the steps of: acquiring prediction-related information about the current block; acquiring residual information about the current block; deriving a prediction sample of the current block on the basis of the prediction-related information; deriving a residual sample of the current block on the basis of the residual information; and generating a reconstructed picture on the basis of the prediction sample and the residual sample.

Image decoding method for coding image information including TSRC available flag, and device therefor

An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: obtaining a sign data hiding availability flag indicating whether or not sign data hiding is available for a current slice; obtaining a TSRC availability flag indicating whether or not TSRC is available for a transform skip block of the current slice; obtaining residual coding information about the transform skip block on the basis of the TSRC availability flag; deriving a residual sample for the transform skip block on the basis of the residual coding information; and generating a reconstruction picture on the basis of the residual sample, wherein the TSRC availability flag is obtained on the basis of the sign data hiding availability flag.

Method and apparatus for decoding imaging related to sign data hiding

An image decoding method performed by a decoding apparatus according to the present document includes deriving a CCLM mode as an intra prediction mode of a current block, deriving a specific value for the current chroma block, deriving, based on the width and the height of the current chroma block being greater than or equal to the specific value, top neighboring chroma samples whose number is equal to the specific value of the current chroma block, and left neighboring chroma samples whose number is equal to the specific value, deriving CCLM parameters based on the top neighboring chroma samples, the left neighboring chroma samples, and down-sampled neighboring luma samples, deriving prediction samples for the current chroma block based on the CCLM parameters and the down-sampled luma samples, and generating reconstructed samples for the current chroma block based on the prediction samples, wherein the derived specific value is 2.

Method and device for image decoding on basis of CCLM prediction in image coding system

A method by which a decoding device decodes a video, according to the present document, can comprise the steps of: acquiring, from a bitstream, information that indicates the level value of a transform coefficient in a current block; deriving, on the basis of whether the number of context coded bins maximally usable for the transform coefficient is greater than or equal to a threshold value, a rice parameter for the information that indicates the level value of the transform coefficient; deriving, on the basis of the rice parameter, a bin string for the information that indicates the level value of the transform coefficient; and deriving the level value of the transform coefficient on the basis of the bin string.

Entropy coding method and device in video/image coding system

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.

Method and apparatus for video coding using mapping of residual signals

A semiconductor device is provided. The semiconductor device includes: a first power pad; a second power pad; a signal pad; a clamping circuit connected between the first power pad and the second power pad; a driving circuit connected to the signal pad and including a pull-up circuit and a pull-down circuit; and a first gate-off circuit connected to the pull-down circuit. The first gate-off circuit is configured to connect a gate of the pull-down circuit and a source of the pull-down circuit to each other during an electrostatic discharge (ESD) event in which a high voltage is applied to the signal pad, and control a current generated by the high voltage to flow to the clamping circuit.

Semiconductor device

An image decoding method includes obtaining image information including prediction mode information from a bitstream, obtaining matrix-based intra prediction (MIP) flag information related to whether an MIP is applied to a current block based on the prediction mode information, deriving an MIP mode for the current block based on the MIP flag information, deriving an MIP matrix for the current block based on the MIP mode, generating MIP samples for the current block based on the MIP matrix, deriving reconstructed samples for the current block based on the MIP samples, wherein for the current block of which size is equal to 64x4, the MIP flag information for the current block is obtained from the bitstream, and wherein the MIP matrix is derived further based on a width and a height of the current block.

Matrix intra prediction-based image coding apparatus and method

An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may include determining a chroma array type of a current image, determining an adaptive loop filter (ALF) indicator of a chroma component based on the chroma array type, and performing ALF filtering with respect to a reconstructed image based on a value of the ALF indicator. The value of the ALF indicator may be determined to be a predetermined value without being obtained from a bitstream, based on the chroma array type being a predetermined type, and the value of the ALF indicator may be obtained from the bitstream, based on the chroma array type being not the predetermined type.

Image encoding/decoding method and device for signaling filter information on basis of chroma format, and method for transmitting bitstream

A method for decoding an image by a decoding apparatus according to the present invention comprises the steps of: deriving predicted samples by performing prediction on a current block; determining whether the current block is to be divided, on the basis of a size and a maximum transform size of the current block; when the current block is determined to be divided, dividing the current block into transform blocks; deriving transform coefficients of the transform blocks; deriving residual samples by performing an inverse transform procedure for the transform coefficients; and generating a reconstructed picture on the basis of the residual samples and the predicted samples, wherein, when the size of the current block is larger than the maximum transform size, the current block is determined to be divided.

Method and apparatus for decoding image by using transform according to block size in image coding system

An image decoding method according to the present document comprises the steps of: receiving a bitstream including residual information; deriving a quantized transform coefficient for a current block on the basis of the residual information included in the bitstream; deriving a residual sample for the current block on the basis of the quantized transform coefficient; and generating a restoration picture on the basis of the residual sample for the current block, wherein the residual information includes position information for indicating the position of a transform coefficient, which is not the last 0 in a transform block, and the position information can be derived if a transform skip is not applied to the transform block.

Transform coefficient coding method and device

A video encoding/decoding method and a video encoding/decoding apparatus are provided. The video decoding method includes determining at least two intra prediction modes based on intra prediction modes of neighboring blocks adjacent to a current block. The video decoding method further includes generating at least two prediction blocks using the at least two intra prediction modes. The video decoding method further includes generating a prediction block of the current block by performing a weighted average on the at least two prediction blocks.

Video encoding/decoding method and apparatus

An image decoding method executed by a decoding apparatus according to the present document comprises the steps of: deriving an intra prediction mode of the current chroma block by means of cross-component linear model (CCLM) mode; deriving downsampled luma samples on the basis of the current luma block; deriving downsampled neighboring luma samples on the basis of neighboring luma samples of the current luma block; and deriving the CCLM parameter on the basis of the downsampled neighboring luma samples and neighboring chroma samples of the current neighboring chroma block, wherein the number of down-sampled neighboring luma samples and number of neighboring chroma samples are equal to the previously set thresh-hold value, and the thresh-hold value is derived on the basis of the width and height of the current chroma block.

CCLM prediction-based image decoding method and apparatus in image coding system

A video decoding method performed by a decoding apparatus according to the present document may comprise the steps of: obtaining, from a bitstream, information indicating a level value of a transform coefficient in a current block; selecting one Rice parameter look-up table for the information indicating the level value of the transform coefficient, from among a plurality of Rice parameter look-up tables; deriving a Rice parameter for the information indicating the level value of the transform coefficient on the basis of the selected Rice parameter look-up table; deriving a bin string for the information indicating the level value of the transform coefficient on the basis of the Rice parameter; and deriving the level value of the transform coefficient on the basis of the bin string.

Method and apparatus for coding transform coefficient in video/image coding system

Growing community of inventors

Hwaseong-si, South Korea

Jin Seong Heo