公开(公告)号：US12192450B2

公开(公告)日：2025-01-07

申请号：US18453232

申请日：2023-08-21

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Jae Gon Kim ,  Do Hyeon Park ,  Yong Uk Yoon ,  Ji Hoon Do

IPC: H04N19/109 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51

Abstract: An encoding/decoding method and device according to the present disclosure may: determine at least one among a plurality of inter prediction modes as the inter prediction mode of the current block; form an inter prediction candidate list on the basis of the determined inter prediction mode; perform motion compensation on the basis of one prediction candidate in the inter prediction candidate list, and generate a first prediction block of the current block; and correct the first prediction block by using a prescribed intra prediction mode.

公开(公告)号：US12184867B2

公开(公告)日：2024-12-31

申请号：US18317685

申请日：2023-05-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Sung Chang Lim ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jae Gon Kim ,  Hae Chul Choi ,  Sang Yong Lee

IPC: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70

Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.

公开(公告)号：US11792393B2

公开(公告)日：2023-10-17

申请号：US17418643

申请日：2019-12-30

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Jae Gon Kim ,  Do Hyeon Park ,  Yong Uk Yoon ,  Ji Hoon Do

IPC: H04N19/109 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51

CPC classification number: H04N19/109 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51

Abstract: An encoding/decoding method and device according to the present disclosure may: determine at least one among a plurality of inter prediction modes as the inter prediction mode of the current block; form an inter prediction candidate list on the basis of the determined inter prediction mode; perform motion compensation on the basis of one prediction candidate in the inter prediction candidate list, and generate a first prediction block of the current block; and correct the first prediction block by using a prescribed intra prediction mode.

公开(公告)号：US20230336740A1

公开(公告)日：2023-10-19

申请号：US18317685

申请日：2023-05-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Sung Chang LIM ,  Hui Yong Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Jae Gon Kim ,  Sang Yong Lee ,  Hae Chul CHOI

IPC: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/198 ,  H04N19/593 ,  H04N19/70

Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.

公开(公告)号：US12081733B2

公开(公告)日：2024-09-03

申请号：US17291833

申请日：2019-11-22

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Jae Gon Kim ,  Do Hyeon Park ,  Yong Uk Yoon ,  Ji Hoon Do

IPC: H04N19/105 ,  H04N19/109 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/109 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: An image encoding and decoding method comprises the steps of: determining an inter-component prediction mode of a chrominance component block on the basis of an inter-component prediction mode list and predetermined index information; determining a reference sample for inter-component prediction of the chrominance component block on the basis of the determined inter-component prediction mode; deriving the parameters of a linear prediction model by using the reference sample; and performing inter-component prediction for the chrominance component block by using the parameters of the linear prediction model.

公开(公告)号：US11689728B2

公开(公告)日：2023-06-27

申请号：US17503570

申请日：2021-10-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Jin Ho Lee ,  Hui Yong Kim ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin woong Kim ,  Jae Gon Kim ,  Hae Chul Choi ,  Sang Yong Lee

IPC: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/157 ,  H04N19/11 ,  H04N19/176 ,  H04N19/198 ,  H04N19/593 ,  H04N19/70

Abstract: An intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device operate by deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.