Electronics and Telecommunications Research Institute

Lx Semicon Co., Ltd.

University-Industry Cooperation Group of Kyung Hee University

Sejong University

Chips&media,inc

Industry-University Cooperation Foundation Korea Aerospace University

Intellectual Discovery Co., Ltd.

Kwangwoon University Industry-Academic Collaboration Foundation

Korea Advanced Institute of Science and Technology

Hanbat National University Industry-Academic Cooperation Foundation

Sungkyunkwan University

Dolby Laboratories Licensing Corporation

Ideahub Inc.

Handong Global University Industry-Academic Cooperation Foundation

Industry-Academic Cooperation Foundation Hanbat National Univ

Ha Hyun Lee

Sung Chang Lim

Jin Ho Lee

Hui Yong Kim

Jung Won Kang

Jin Soo Choi

Dong San Jun

Jong Ho Kim

Se Yoon Jeong

Hyun Suk Ko

Jin Woong Kim

Suk Hee Cho

Chie Teuk Ahn

Seung Hyun Cho

Gwang Hoon Park

Dae Yeon Kim

Jae Gon Kim

Yung Lyul Lee

Hae Chul Choi

Dong Gyu Sim

Seoung Jun Oh

Nam Uk Kim

Do Hyeon Park

Mun Churl Kim

Sea Nae Park

Jin Woo Hong

Kyung Yong Kim

Tae Hyun Kim

Dae Young Lee

Byeung Woo Jeon

Myung Jun Kim

Bum Shik Lee

Jong Ki Han

Yang Woo Kim

Jae Yung Lee

Yong Uk Yoon

Tae Ryong Kim

Chan Woong Jeon

Han Soo Lee

Jung Hak Nam

Dong Jin Park

Jee Yoon Park

Hyo Min Choi

Ji Yeon Jung

Gun Bang

Sung-Chang Lim

Wook Je Jeong

Soo Woong Kim

Neung Joo Hwang

Jun Woo Choi

Ji Hoon Do

Dae Hyeok Gwon

Aram Back

Seung Su Jeon

Hae Chui Choi

Ji Youn Jung

Min Yong Jeon

Hyun Gyu Kim

Jin Ho Mes Lee

Myoung Hun Jang

Dong-Gyu Sim

Seung Won Jung

Sung Jea Ko

Yeo Jin Yoon

Jae Ryun Choi

Sung Soo Hwang

Dong Hyu Sim

Hyun Min Han

Jin Kyu Lee

Mu Hyun Back

Ji Won Moon

Ju Ock Lee

Se Hui Kang

An image encoding/decoding method may comprise deriving at least one merge candidate of a current block, generating an initial merge candidate list of the current block by using the derived at least one merge candidate and generating a reconfigured merge candidate list by using the initial merge candidate list.

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

A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted. At the generating of the prediction information, the prediction information is generated by using the information on the coding unit neighboring to the current coding unit

Method for encoding video information and method for decoding video information, and apparatus using same

The present invention relates to an image encoding/decoding method and apparatus. An image decoding method performing intra prediction according to the present invention may comprise dividing a current block into at least one sub-block; deriving an intra prediction mode for the at least one sub-block; constructing a reference sample for the intra prediction; and performing intra prediction for the at least one sub-block based on the derived intra prediction mode.

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

The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.

Intra prediction method and device

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

Disclosed herein is an image encoding/decoding method and apparatus based on transform. An image decoding method includes determining a horizontal transform type and a vertical transform type of a current block, deriving a residual block of the current block by performing inverse transform with respect to the current block based on the determined horizontal transform type and vertical transform type, and reconstructing the current block based on the residual block. The determining of the horizontal transform type and the vertical transform type is performed based on at least one of a width or a height of the current block regardless of an intra prediction mode of the current block, when the current block is in an intra sub-block partitions (ISP) mode.

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

According to an embodiment of the present invention, there is provided an image decoding method including: obtaining an arithmetic-coded symbol stream from an image stream; identifying a symbol segment from the symbol stream according to symbol segment information signaled from an encoding apparatus; selecting an arithmetic decoding process corresponding to the symbol segment; and collectively processing one or more symbols among multiple symbols included in the symbol segment, in association with the selected arithmetic decoding process.

Method for processing image providing improved arithmetic encoding, method for decoding and encoding image using same, and apparatus for same

Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.

There is provided an image encoding/decoding method and apparatus. An image decoding method according to the present invention may comprise reconstructing a most frequent mode (MFM) indicator indicating whether or not an intra prediction mode of a current block is a predetermined intra prediction mode, deriving, on the basis of the MFM indicator, the intra prediction mode of the current block, and generating a prediction block of the current block by performing intra prediction on the current block on the basis of the intra prediction mode.

Image encoding/decoding method and device using MFM indicator and MPM indicator, and recording medium in which bitstream is stored

There is provided a method and apparatus of encoding/decoding an intra prediction mode. The method comprises deriving an intra prediction mode with respect to a current block, constructing a reference sample for the current block on the basis of the derived intra prediction mode, and performing the intra prediction with respect to the current block using the derived intra prediction mode and the constructed reference sample, wherein the intra prediction mode is derived on the basis of a most probable mode (MPM).

Intra prediction mode encoding/decoding method and device, and recording medium in which bitstream is stored

An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprises determining step for determining whether or not to derive second motion information when a current block includes first motion information only and for which bi-directional prediction is available, a deriving step for deriving the second motion information based on the first motion information, and a predicting step for generating a prediction block of the current block by performing BIO prediction based on the first motion information and the second motion information.

Method for encoding/decoding image using bi-directional optical flow prediction

An inter prediction method according to the present invention comprises: a step for deriving reference motion information related to a unit to be decoded in a current picture; and a step for performing motion compensation for the unit to be decoded, using the reference motion information that has been derived. According to the present invention, image encoding/decoding efficiency can be enhanced.

Method and apparatus for inter prediction using motion vector candidate based on temporal motion prediction

The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.

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

Growing community of inventors

Seoul, South Korea

Ha Hyun Lee