公开(公告)号：US20190082178A1

公开(公告)日：2019-03-14

申请号：US16084995

申请日：2017-03-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Youn-Hee KIM ,  Jin-Wuk SEOK ,  Hui-Yong KIM ,  Myung-Seok KI ,  Sung-Chang LIM ,  Jin-Soo CHOI

IPC: H04N19/119 ,  H04N19/114 ,  H04N19/174 ,  H04N19/136

Abstract: Disclosed herein are a method and apparatus for video encoding and decoding using picture partition information. Each of the pictures in a video is partitioned into tiles or slices based on picture partition information. Each picture is partitioned using one of at least two different methods based on the picture partition information. The picture partition information may indicate two or more picture partitioning methods. The picture partitioning methods may be changed either periodically or according to a specific rule. The picture partition information may describe such a periodic change or the specified rule.

公开(公告)号：US20170195675A1

公开(公告)日：2017-07-06

申请号：US15015456

申请日：2016-02-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin-Wuk SEOK ,  Myung-Seok KI ,  Youn-Hee KIM ,  Hui-Yong KIM ,  Jin-Soo CHOI

IPC: H04N19/147 ,  H04N19/124 ,  H04N19/176 ,  H04N19/15 ,  H04N19/13 ,  H04N19/43 ,  H04N19/159 ,  H04N19/117 ,  H04N19/103 ,  H04N19/61

CPC classification number: H04N19/147 ,  H04N19/103 ,  H04N19/15 ,  H04N19/176

Abstract: Disclosed herein are an apparatus and method for performing rate-distortion optimization based on cost. The encoding apparatus selects an encoding mode to be used to encode a target block from among multiple modes and performs computation for rate-distortion optimization in the encoding mode. The encoding apparatus calculates a cost of at least one of the multiple modes in relation to the encoding of the target block, and selects the encoding mode from among the multiple modes, based on the cost.

公开(公告)号：US20200169726A1

公开(公告)日：2020-05-28

申请号：US16088464

申请日：2017-04-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Youn-Hee KIM ,  Jin-Wuk SEOK ,  Myung-Seok KI ,  Sung-Chang LIM ,  Hui-Yong KIM ,  Jin-Soo CHOI

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

Abstract: Disclosed herein are a method and apparatus for deriving motion prediction information and performing encoding and/or decoding on a video using the derived motion prediction information. Each of an encoding apparatus and a decoding apparatus generates a list for inter prediction of a target block. In the generation of the list, whether motion information of a candidate block is to be added to a list is determined based on information about the target block and the motion information. When the motion information passes a motion prediction boundary check, the motion information is added to the list. By means of the motion prediction boundary check, available motion information for prediction of the target block is selectively added to the list.