公开(公告)号：US11368682B2

公开(公告)日：2022-06-21

申请号：US16096704

申请日：2017-04-19

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Dong Gyu Sim ,  Ho Chan Ryu ,  Yong Jo Ahn

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/615 ,  H04N19/635 ,  H04N19/82 ,  H04N19/91

Abstract: A device for encoding/decoding the image according to the present invention includes an intra prediction module configured to: determine an intra prediction mode of a current block; determine a scanning order of multiple sub blocks in the current block on the basis of the determined intra prediction mode; and perform intra prediction of the current block on the basis of the determined scanning order.

公开(公告)号：US20200374529A1

公开(公告)日：2020-11-26

申请号：US16993628

申请日：2020-08-14

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Yong Jo Ahn ,  Dong Gyu Sim ,  Ho Chan Ryu ,  Seanae Park ,  Byung Tae Oh ,  Byung Cheol Song

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/82 ,  H04N19/593 ,  H04N19/91 ,  H04N19/523 ,  H04N19/157 ,  H04N19/18 ,  H04N19/513 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176

Abstract: A video encoding/decoding apparatus according to the present invention acquires motion vector refinement information, performs motion compensation on the basis of a motion vector of a current block, refines the motion vector of the current block using at least one or both of the motion vector refinement information and the output of the motion compensation, and performs motion compensation using the refined motion vector.

公开(公告)号：US10334258B2

公开(公告)日：2019-06-25

申请号：US16003376

申请日：2018-06-08

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Dong Gyu Sim ,  Jung Hak Nam ,  Hyun Ho Jo ,  Hyo Min Choi

IPC: H04N19/172 ,  H04N19/30 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/53

Abstract: The present invention relates to a scalable video coding method and apparatus using inter prediction mode. A decoding method includes determining motion information prediction mode on a target decoding block of an enhancement layer, predicting motion information on the target decoding block of the enhancement layer using motion information on the neighboring blocks of the enhancement layer, if the determined motion information prediction mode is a first mode, and predicting the motion information on the target decoding block of the enhancement layer using motion information on a corresponding block of a reference layer, if the determined motion information prediction mode is a second mode.

公开(公告)号：USRE46678E1

公开(公告)日：2018-01-16

申请号：US14815532

申请日：2015-07-31

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Dong Gyu Sim ,  Jung Hak Nam ,  Hyung Ho Jo

IPC: H04N19/126 ,  H04N19/463 ,  H04N19/96 ,  H04N19/593 ,  H04N19/50 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/126 ,  H04N19/176 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are an apparatus and a method of encoding/decoding a video, particularly a method and an apparatus for storing a quantization parameter differential value in a largest coding unit (LCU) based on quadtree splitting and adaptively predicting a quantization parameter value based on context information on neighboring CUs. Quadtree-based quantization parameter encoding and decoding methods and apparatuses effectively show information on a block having a quantization parameter differential value based on splitting information on a CU and adaptively predict a quantization parameter value using context information including a block size, block partition and a quantization parameter of a neighboring CU.

公开(公告)号：US20160037173A1

公开(公告)日：2016-02-04

申请号：US14852966

申请日：2015-09-14

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Dong Gyu Sim ,  Jung Hak Nam ,  Hyun Ho Jo ,  Hyo Min Choi

IPC: H04N19/172 ,  H04N19/44 ,  H04N19/117 ,  H04N19/176

CPC classification number: H04N19/503 ,  H04N19/11 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/44

Abstract: The present invention relates to a scalable video coding method and apparatus using an intra prediction mode. A decoding method includes configuring a maximum probability mode set for predicting an intra prediction mode for a target decoding block of an enhancement layer so that the maximum probability mode set includes an intra prediction mode for a corresponding block of a reference layer and restoring the target decoding block of the enhancement layer using any one of intra prediction modes included in the maximum probability mode set.