Samsung Electronics Co., Ltd.

Electronics and Telecommunications Research Institute

Samsung Sdi Co., Inc.

Sejong University

Samsung Display Co., Ltd.

Cheil Industries Inc.

Kwangwoon University Industry-Academic Collaboration Foundation

Jin-young Lee

Min-woo Park

Byeong-Doo Choi

Yong-jin Cho

Seung-soo Jeong

Ho-cheon Wey

Sun-il Lee

Yin-Ji Piao

Jae-won Yoon

Anish Tamse

Woong-il Choi

Jung-hye Min

Chan-yul Kim

Elena Alshina

Jie Chen

Gun Bang

Hui-Yong Kim

Ga-hyun Joo

Ki-ho Choi

Woong Lim

Ji-su Jung

Ji-Yun Kwon

Sunah Kim

Jong-Hwa Lee

In-chul Hwang

Pil-seung Yang

Bong-Im Park

Dong-Gyu Sim

Sang-Kyun Kim

Jin-Hee Kang

Yong-tae Kim

In-kwon Choi

Da-hye Park

Jae-Hyung Kim

Ik-Hyun Ahn

Seol-hye Won

Bum-Jin Lee

Mikhail Mishurovskiy

Dae-Yun Kim

Sung-yong Lee

Yoon-gu Kim

Hyun-sik Hwang

Hyun-ho Jo

Jae-Hwan Song

Woo-Joo Lee

Sun-Il Lee

Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

Video encoding device and video decoding device using high-precision skip encoding and method thereof

A method of decoding a motion vector includes: obtaining information indicating a motion vector resolution (MVR) of a current block from a bitstream; selecting one candidate block from among at least one candidate block, based on the MVR of the current block; and obtaining a motion vector of the current block corresponding to the MVR, by using a motion vector of the determined one candidate block as a prediction motion vector of the current block.

Apparatus and method for encoding motion vector determined using adaptive motion vector resolution, and apparatus and method for decoding motion vector

Provided is a video decoding method including: obtaining, from a bitstream, prediction motion vector information indicating a prediction motion vector of a current block and difference motion vector information indicating a difference motion vector of the current block; determining the prediction motion vector of the current block according to whether or not an adjacent block of the current block is decoded and the prediction motion vector information; determining a motion vector resolution of the current block according to whether or not the adjacent block of the current block is decoded; determining the difference motion vector of the current block according to the difference motion vector information; determining a motion vector of the current block according to the prediction motion vector, the motion vector resolution, and the difference motion vector; and reconstructing the current block according to the motion vector of the current block, wherein the adjacent block of the current block includes a right block of the current block.

Encoding method and apparatus therefor, and decoding method and apparatus therefor

A method of decoding motion information includes: identifying a type of omission motion information not included in a bitstream from among a plurality of pieces of motion information used to decode a current block that is inter predicted; obtaining the omission motion information by using a predetermined method; and decoding the current block based on the plurality of pieces of motion information including the obtained omission motion information.

Apparatus and method for encoding motion information, and decoding apparatus and method

Disclosed herein are a method and apparatus for image encoding and image decoding using region segmentation. A picture is divided into multiple sub-pictures, and encoding and/or decoding are performed on the multiple sub-pictures resulting from division. Encoding operations and/or decoding operations on the sub-pictures may be independently performed. Merging and filtering are applied to reconstructed sub-pictures generated by decoding, and a reconstructed picture is generated after processing of merging and filtering.

Method and apparatus for image encoding and image decoding using area segmentation

Provided is a video decoding method including: obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded; determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; and reconstructing the current block, based on one or more affine parameters included in the affine parameter group.

Encoding method and device, and decoding method and device

A method of decoding a motion vector includes: determining at least one prediction motion vector (PMV) candidate block used to determine a PMV of a current block; determining an availability of a motion vector of the at least one PMV candidate block; when there is a PMV candidate block determined to be unavailable, determining the PMV of the current block by using a default motion vector (MV); and obtaining a motion vector of the current block based on the determined PMV.

Apparatus and method for encoding motion vector by using basic motion vector, and decoding apparatus and method

A method of decoding a motion vector includes: obtaining information indicating a motion vector resolution (MVR) of a current block from a bitstream, selecting one candidate block from among at least one candidate block, based on the MVR of the current block; and obtaining a motion vector of the current block corresponding to the MVR, by using a motion vector of the determined one candidate block as a prediction motion vector of the current block.

Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using geometric partitioning. A target block may be geometrically partitioned, and multiple partitioned regions may be generated from geometric partitioning. Each partitioned region may have a non-square and a non-rectangular shape. Different prediction schemes may be applied to different partitioned regions. The different prediction schemes for multiple partitioned regions may be signaled as explicit information, and may be derived using information about a coding parameter for the target block or the like.

Method, apparatus, and recording medium for encoding/decoding image by using geometric partitioning

A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.

Method and device for encoding/decoding motion vector

Growing community of inventors

Suwon-si, South Korea

Jin-young Lee