Sk Telecom Company, Ltd.

Samsung Electronics Co., Ltd.

Pixtree, Inc.

Other

Sk Telecom Ltd.

Jae-seob Shin

Se-hoon Son

Jeong-yeon Lim

Sun-young Lee

Gyeong-taek Lee

Hyeong-duck Kim

Hyo Song Kim

Dae-sung Cho

Sun Young Lee

Se Hoon Son

Tae Young Na

Shi-hwa Lee

Jung-Han Kim

Yang-seock Seo

Euee-seon Jang

Yeon-bae Kim

Sung-hee Park

Yeon-Bae Kim

Sung-gul Ryoo

Young-min Choi

Hyeong-Duck Kim

Hwan-Serk Choi

Sung-Gul Ryoo

Hyoung-June Yi

Jae-Seung Ko

Dong-ju Kim

Vadim B Tkhor

Dong-bum Seo

Disclosed herein is a method for decoding a video including determining a coding unit to be decoded by block partitioning, decoding prediction syntaxes for the coding unit, the prediction syntaxes including a skip flag indicating whether the coding unit is encoded in a skip mode, after the decoding of the prediction syntaxes, decoding transform syntaxes including a transformation/quantization skip flag and a coding unit cbf, wherein the transformation/quantization skip flag indicates whether inverse transformation, inverse quantization, and at least part of in-loop filterings are skipped, and the coding unit cbf indicates whether all coefficients in a luma block and two chroma blocks constituting the coding unit are zero, and reconstructing the coding unit based on the prediction syntaxes and the transform syntaxes.

Method and device for encoding or decoding video

Disclosed is video encoding/decoding method and apparatus using a correlation of YCbCr. According to an aspect of the present disclosure, the video decoding method for predictively decoding a target block includes, receiving a bitstream and generating a residual block for a chroma block, generating reconstructed information in a luma block corresponding to the chroma block and reconstructed neighboring information about the luma block, generating reconstructed neighboring information about the chroma block, determining a scaling value and an offset value based on the reconstructed neighboring information about the chroma block and the reconstructed neighboring information about the luma block, generating a prediction block for the chroma block by applying the determined scaling value and offset value to the reconstructed information in the luma block, and generating a reconstructed block for the chroma block based on the residual block for the chroma block and the prediction block for the chroma block.

Video encoding/decoding method and apparatus using correlation in YCbCr

Disclosed herein is a method for adaptive bidirectional optical flow estimation for inter prediction compensation during video encoding. The method aims to reduce complexity and/or cost of bidirectional optical flow (BIO) at a pixel level or a subblock level.

Method and apparatus for estimating optical flow for motion compensation

A video decoding method for decoding an input bitstream in which each of pictures has been encoded with being split into a plurality of tiles, the method includes decoding partial decoding information included in the input bitstream and determining one or more target tiles to be decoded among the plurality of tiles according to the partial decoding information; and decoding video data corresponding to the one or more target tiles, wherein the partial decoding information includes at least one of first information indicating whether to perform partial decoding and second information indicating an area on which partial decoding is to be performed.

Method and apparatus for video decoding of area of interest in a bitstream

A video decoding apparatus decodes a sequence of one or more pictures in the unit of blocks which are split from each picture. The apparatus comprising a decoder configured to reconstruct, from a bitstream, a current motion vector difference of the current block among the blocks which belong to the sequence of one or more pictures, and an image decoder configured to predict and decode the current block using the motion vector of the current block. When the current motion vector difference of the current block is zero, the resolution of the current motion vector difference of the current block is set to the ¼ pixel precision without the information on the motion vector resolution extracted.

Apparatus and method for encoding or decoding video using adaptive motion vector resolution

Disclosed herein are a QTBT split structure allowing blocks of various shapes capable of more efficiently reflecting various local characteristics of video and a method of efficiently signaling the split structure.

Apparatus and method for video encoding or decoding

Growing community of inventors

Seoul, South Korea

Jae-seob Shin