Electronics and Telecommunications Research Institute

University-industry Cooperation Group of Kyung Hee University

Lx Semicon Co., Ltd.

Industry-university Cooperation Foundation Korea Aerospace University

Intellectual Discovery Co., Ltd.

Sejong University

Chips & Media, Inc.

Hanbat National University Industry-academic Cooperation Foundation

Korea Advanced Institute of Science and Technology

Sungkyunkwan University

Dolby Laboratories Licensing Corporation

Kwangwoon University Industry-academic Collaboration Foundation

Ideahub Inc.

Industry-university Cooperation Foundation of Korea Aerospace University

Research and Telecommunications Research Insitute

Sung Chang Lim

Hui Yong Kim

Jin Ho Lee

Ha Hyun Lee

Jin Soo Choi

Jung Won Kang

Jin Woong Kim

Gwang Hoon Park

Dong San Jun

Hyun Suk Ko

Jong Ho Kim

Se Yoon Jeong

Kyung Yong Kim

Suk Hee Cho

Chie Teuk Ahn

Seung Hyun Cho

Sang Min Kim

Hae Chul Choi

Jae Gon Kim

Yung Lyul Lee

Dae Yeon Kim

Tae Hyun Kim

Dae Young Lee

Sang Yong Lee

Do Hyeon Park

Nam Uk Kim

Seoung Jun Oh

Jin Woo Hong

Dong Gyu Sim

Byeung Woo Jeon

Mun Churl Kim

Bum Shik Lee

Myung Jun Kim

Yong Uk Yoon

Sea Nae Park

Young Su Heo

Yang Woo Kim

Jee Yoon Park

Han Soo Lee

Un Ki Park

Tae Ryong Kim

Chan Woong Jeon

Ji Yeon Jung

Dae Hyeok Gwon

Dong Jin Park

Gun Bang

Soo Woong Kim

Jun Woo Choi

Ji Hoon Do

Aram Back

Wook Je Jeong

Ji Youn Jung

Seung Su Jeon

Dae Yeol Lee

Hae Chui Choi

Min Yong Jeon

Hyun Gyu Kim

Jin Ho Mes Lee

Jae Ryun Choi

Yong Jo Ahn

Dong-Gyu Sim

Dong Kyu Lee

Won Jun Lee

Seung Won Jung

Woo Woen Gwun

Sung Jea Ko

Yeo Jin Yoon

Sung Soo Hwang

Se Hui Kang

Ji Won Moon

Mu Hyun Back

Jin Kyu Lee

Hyun Min Han

Seoung Hwi Kim

Ju Ock Lee

Hee Ji Han

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

Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes deriving an intra prediction value by performing intra prediction with respect to a current block, deriving an inter prediction value by performing inter prediction with respect to the current block, deriving a combined inter intra prediction (CIIP) value by weighting the intra prediction value and the inter prediction value, and generating a reconstructed block of the current block using the CIIP value. The intra prediction is performed in a Planar mode.

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

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.

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

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

The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.

Image encoding/decoding method and device, and recording medium in which bitstream is stored

There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.

Context adaptive binary arithmetic coding method and device

Disclosed herein is a video decoding method. The video decoding method includes: obtaining a chroma residual joint flag of a current block indicating whether or not a chroma residual joint mode is applied to the current block; obtaining, from a bitstream, a transform skip mode flag for a luma component of the current block and a transform skip mode flag for a first chroma component; when the chroma residual joint flag indicates that a chroma residual joint mode is applied to the current block, determining whether or not a transform skip mode is applied to a second chroma component of the current block, according to the transform skip mode flag for the first chroma component; and, when the chroma residual joint flag indicates that a chroma residual joint mode is not applied to the current block, obtaining, from the bitstream, a transform skip mode flag for the second chroma component of the current block.

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

An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise determining a prediction mode of a current block and performing prediction with respect to the current block on the basis of the determined prediction mode.

Method and apparatus for encoding/decoding image, and recording medium for storing bitstream

Disclosed herein is a method of encoding/decoding an image. The image decoding method includes decoding information on a quantization matrix from a bitstream, acquiring a quantization matrix of a current block based on the information on the quantization matrix, and dequantizing the current block using the quantization matrix of the current block. The acquiring of the quantization matrix of the current block includes deriving a single identifier using at least one of a size of the current block, a prediction mode or a color component, and acquiring the quantization matrix of the current block based on the single identifier.

Quantization matrix encoding/decoding method and device, and recording medium in which bitstream is stored

There is provided an image encoding/decoding method and apparatus. The image encoding method of the present invention includes: determining whether or not to apply filtering to a filtering target sample; determining a filter type on the basis of the determination; and applying filtering to the filtering target sample by using the determined filter type.

Image encoding/decoding method and apparatus using sample filtering

Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.

Intra prediction mode encoding/decoding method and apparatus for same

Method and apparatus for encoding/decoding based on motion vector precision adjustment

Growing community of inventors

Daejeon, South Korea

Sung Chang Lim