Electronics and Telecommunications Research Institute

Sejong University

Industry-University Cooperation Foundation Korea Aerospace University

Kwangwoon University Research Institute for Industry Cooperation

Hanbat National University Industry-Academic Cooperation Foundation

Korea Institute of Geoscience and Mineral Resources (Kigam)

Korea Advanced Institute of Science and Technology

Columbia University

Korea Electronics Technology Institute

Jae-Gon Kim

Jin-Woo Hong

Yung-Lyul Lee

Hae-Chul Choi

Sung-Chang Lim

Hui-Yong Kim

Jin-Ho Lee

Ha-Hyun Lee

Jin-Woong Kim

Jeong-Il Seo

Seoung-Jun Oh

Dae-Young Jang

Dong-Gyu Sim

Se-Yoon Jeong

Chang-Beom Ahn

Seung-Kwon Beack

In-Seon Jang

Kyung-Ae Moon

Dong-Kyun Kim

Hyunsuk Ko

Dong-San Jun

Dae-Yeon Kim

Do-Hyeon Park

Jung-Won Kang

Yong-Uk Yoon

Seung-Hyun Cho

Ji-Hoon Do

A-Ram Back

Dae-Hyeok Gwon

Kwang-Deok Seo

Hee-Kyung Lee

Nam-Uk Kim

Ho-Cheol Song

Soon-Heung Jung

Jung-Hwa Lee

Yong-Chan Cho

Kyeongok Kang

Yong Wang

Shih-Fu Chang

Jin-Soo Choi

Hwa Seon Shin

Byeong Ho Choi

Je Woo Kim

Sung-Jea Ko

Gwang-Soon Lee

Hae-Kwang Kim

Jinwoong Kim

Seong-Jun Bae

Jungwon Kang

Ho-Chong Park

Je-Ho Nam

Jie Jia

Kwan-Jung Oh

Cong Thang Truong

Yong-Man Ro

Kyoung-Ro Yoon

Yong-Ju Cho

Choon-Oh Lee

Young-Woo Choi

Sun-Young Han

Dong Il Park

Sung-Gyun Lim

Doo San Baek

Chul-Min Chun

In-Hyun Nam

Dong-Wan Cho

Se-Eun Chang

Heekyung Lee

Jinwoo Hong

Su-Yeol Jeon

Joo-Sung Ahn

Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.

Block form-based prediction method and device

Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, inter-prediction information for a target block may be derived, and inter prediction for a target block may be performed using the derived inter-prediction information. Combined inter-prediction information may be performed by combining multiple pieces of inter-prediction information, and the combined inter-prediction information may be added as a candidate to a list used for inter prediction. One of candidates in the list may be selected for inter prediction for the target block, and inter prediction using the selected candidate may be performed.

Method and device using inter prediction information

Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.

Method and apparatus for deriving intra prediction mode

Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In the encoding and decoding of a video, a prediction mode may be selected from among multiple prediction modes using prediction mode information for a target block, and prediction may be performed on the target block based on the selected prediction mode, wherein the prediction mode information includes information related to a reference block, and wherein the reference block comprises one or more of a spatially neighboring block that is spatially adjacent to the target block and a temporally neighboring block that is temporally adjacent to the target block. When the selected prediction mode includes a plurality of prediction modes, a prediction mode to be used for prediction of the target block may be decided on among the plurality of selected prediction modes through signaling of the prediction mode decision information.

Prediction method and device using reference block

The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

Apparatus for encoding and decoding image using adaptive DCT coefficient scanning based on pixel similarity and method therefor

Disclosed herein is a method for piecewise linear scaling of a geometry atlas, the method including generating min-max normalized depth values and generating geometry atlases by scaling the depth values so as to correspond to the gradients of multiple linear intervals.

Method of piecewise linear scaling of geometry atlas and apparatus using the same

Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.

Method and apparatus for image encoding and decoding using temporal motion information

Method and apparatus for image encoding and image decoding using temporal motion information

Growing community of inventors

Daejeon, South Korea

Jae-Gon Kim