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

Kwangwoon University Industry-academic Collaboration Foundation

Dolby Laboratories Licensing Corporation

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

Dong San Jun

Gwang Hoon Park

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

Dong Gyu Sim

Jin Woo Hong

Byeung Woo Jeon

Sea Nae Park

Mun Churl Kim

Bum Shik Lee

Myung Jun Kim

Yong Uk Yoon

Young Su Heo

Yang Woo Kim

Chan Woong Jeon

Dong Jin Park

Jee Yoon Park

Dae Hyeok Gwon

Han Soo Lee

Tae Ryong Kim

Un Ki Park

Ji Yeon Jung

Gun Bang

Wook Je Jeong

Soo Woong Kim

Jun Woo Choi

Ji Hoon Do

Aram Back

Ji Youn Jung

Jae Ryun Choi

Seung Su Jeon

Dae Yeol Lee

Hae Chui Choi

Min Yong Jeon

Hyun Gyu Kim

Myoung Hun Jang

Jin Ho Mes Lee

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

Seoung Hwi Kim

Mu Hyun Back

Ju Ock Lee

Hee Ji Han

Jin Kyu Lee

Hyun Min Han

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. 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.

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

Growing community of inventors

Daejeon, South Korea

Sung Chang Lim