Electronics and Telecommunications Research Institute

University-industry Cooperation Group of Kyung Hee University

Lx Semicon Co., Ltd.

Industry-university Cooperation Foundation Korea Aerospace University

Sejong University

Intellectual Discovery Co., Ltd.

Chips & Media, Inc.

Korea Advanced Institute of Science and Technology

Kwangwoon University Industry-academic Collaboration Foundation

Hanbat National University Industry-academic Cooperation Foundation

Sungkyunkwan University

Dolby Laboratories Licensing Corporation

Kookmin University

Other

Seoul National University

Hui Yong Kim

Sung Chang Lim

Jin Ho Lee

Ha Hyun Lee

Jin Soo Choi

Jung Won Kang

Jin Woong Kim

Gwang Hoon Park

Se Yoon Jeong

Dong San Jun

Hyun Suk Ko

Jong Ho Kim

Kyung Yong Kim

Suk Hee Cho

Chie Teuk Ahn

Seung Hyun Cho

Sang Min Kim

Hae Chul Choi

Jae Gon Kim

Jin Woo Hong

Tae Hyun Kim

Yung Lyul Lee

Dae Yeon Kim

Dae Young Lee

Sang Yong Lee

Seoung Jun Oh

Dong Gyu Sim

Sea Nae Park

Sung-Chang Lim

Mun Churl Kim

Do Hyeon Park

Nam Uk Kim

Gun Bang

Hae-Chul Choi

Jinho Lee

Jongho Kim

Sukhee Cho

Hahyun Lee

Bum Shik Lee

Myung Jun Kim

Young Su Heo

Yong Uk Yoon

Chan Woong Jeon

Yang Woo Kim

Byeung Woo Jeon

Dae Hyeok Gwon

Un Ki Park

Tae Jin Lee

Dong Jin Park

Tae Ryong Kim

Han Soo Lee

Ji Yeon Jung

Won Jun Lee

Wook Je Jeong

Woo Woen Gwun

Neung Joo Hwang

Jun Woo Choi

Jee Yoon Park

Aram Back

Seung Kwon Beack

Young Ho Jeong

Woong Lim

Woo-taek Lim

Ji Hoon Do

Sung-Hoon Kim

Jong Seok Lee

Jongmo Sung

Dong-Gyu Sim

Mi Suk Lee

Min Yong Jeon

Dong Wook Kang

Jooyoung Lee

Jun Taek Park

Kyeong Hoon Jung

Hyun Gyu Kim

Sang Won Suh

Yong Jo Ahn

Kyeongok Kang

Dong Ho Kim

Chieteuk Ahn

Kyeong Ok Kang

Jeong Il Seo

Jeongil Seo

Seoung-Jun Oh

Sung Hoon Kim

Soon Heung Jung

Inseon Jang

Dong Kyu Lee

Jae-hyoun Yoo

Sea-Nae Park

Joo Young Lee

Seung Won Jung

In Seon Jang

Suk Jin Hong

Sung Jea Ko

An image encoding/decoding method and apparatus are disclosed. The image decoding method includes acquiring prediction mode information of a current block from a bitstream, deriving a prediction mode of the current block using the prediction mode information of the current block, acquiring information indicating whether a residual signal of a transform block for the current block is present based on at least one of information on partitioning of the current block or the prediction mode of the current block, and reconstructing the current block based on the information indicating whether the residual signal of the transform block is present.

Intra block copy-based encoding/decoding method and device, and bitstream storage medium

An image encoding/decoding method and apparatus for performing intra prediction using a plurality of reference sample lines are provided. An image decoding method may comprise configuring a plurality of reference sample lines, reconstructing an intra prediction mode of a current block, and performing intra prediction for the current block based on the intra prediction mode and the plurality of reference sample lines.

Method and device for encoding/decoding image, and recording medium in which bitstream is stored

There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding information on whether or not to perform motion information refinement from a bitstream, obtaining second motion information for first motion information on a current block on the basis of the information and reconstructing at least one of the current block and a neighboring block of the current block by using at least one of the first motion information and the second motion information.

Image encoding/decoding method and apparatus for throughput enhancement, and recording medium storing bitstream

The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

Apparatus for encoding and decoding image by skip encoding and method for same

Image encoding/decoding method and apparatus for throughput enhancement using motion vector refinement

An image encoding/decoding method is provided. An image decoding method of the present invention may comprise constructing a motion information list for a current block, reconstructing a first index for a first triangular block within the current block and a second index for a second triangular block within the current block, and predicting the first triangular block and the second triangular block, based on the first index, the second index, and the motion information list.

Image encoding/decoding method and apparatus, and recording media storing bitstream

Disclosed herein is a method of decoding an image. The method includes determining a prediction mode of a current block as a merge mode with motion vector difference (MMVD), deriving a merge candidate list of the current block, deriving a motion vector predictor of the current block using the merge candidate list, deriving a motion vector difference of the current block, and deriving a motion vector of the current block using the motion vector predictor and the motion vector difference. Only some of candidates in the merge candidate list are used to derive the motion vector predictor.

Image encoding/decoding method and apparatus, and recording medium for storing bitstream

The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.

Image encoding/decoding method and device, and recording medium storing bit stream

An image encoding/decoding method and apparatus for performing template matching-based intra prediction are provided. An image decoding method may comprise deriving a first intra-prediction mode for a current block, generating a first intra-prediction block corresponding to the first intra-prediction mode, deriving a second intra-prediction mode for the current block, generating a second intra-prediction block corresponding to the second intra-prediction mode, and generating a final intra-prediction block by using a weighted sum of the first intra-prediction block and the second intra-prediction block.

Image encoding/decoding method and device, and recording medium storing bitstream

Disclosed herein is an image encoding/decoding method and apparatus. An image decoding method includes decoding a subblock merge mode indicator of a current block, decoding a regular merge mode indicator of the current block, if the subblock merge mode indicator does not indicate a subblock merge mode, and decoding subblock merge mode information of the current block, if the subblock merge mode indicator indicates a subblock merge mode.

Inter prediction information encoding/decoding method and device

An image encoding/decoding method and apparatus are disclosed. The image decoding method includes acquiring prediction mode information of a current block from a bitstream, decoding an intra block copy prediction mode of the current block using the prediction mode information of the current block, and reconstructing the current block based on the intra block copy prediction mode. The intra block copy prediction mode is at least one of a block copy based SKIP mode, a block copy based MERGE mode or a block copy based AMVP mode.

Intra block copy-based encoding/decoding method, device, and bitstream storage medium

There is provided an image encoding/decoding method and apparatus. The image encoding method of the present invention includes: generating at least one candidate block including warped reference picture (WRP) Flag information in an advanced motion vector prediction (AMVP) mode; constructing a candidate list including the at least one candidate block; and generating a prediction block of a current block based on the candidate list.

Method and apparatus for encoding/decoding image using geometrically modified reference picture

Disclosed herein are a video encoding/decoding method and apparatus. The video decoding method according to the present invention includes: obtaining information on whether filtering is performed on a virtual boundary for a current picture from a bitstream; decoding information on the number of virtual boundaries based on the information on whether filtering is performed on a virtual boundary; decoding information on a position of a virtual boundary based on the information on the number of virtual boundaries; and reconstructing the current picture based on the information on the position of the virtual boundary.

Virtual boundary signaling method and apparatus for video encoding/decoding

The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.

Method and apparatus for encoding/decoding a video using a motion compensation

Disclosed herein are an image encoding/decoding method and apparatus, and a recording medium storing a bitstream. The image decoding method according to the present invention includes: deriving slice mode information for at least one slice comprised in a current picture; deriving information on the number of slices based on the slice mode information; deriving tile information of a current slice based on the information on the number of slices; and, decoding the current slice based on the tile information. Herein, the tile information includes tile index presence information and tile index difference value information, and the tile index difference value information is not signaled for a last slice included in the current picture.

Image encoding/decoding method and device, and recording medium for storing bitstream

Growing community of inventors

Daejeon, South Korea

Hui Yong Kim