公开(公告)号：US12081768B2

公开(公告)日：2024-09-03

申请号：US17611871

申请日：2020-06-19

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Jin Ho Lee ,  Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Hui Yong Kim ,  Jae Gon Kim ,  Do Hyeon Park ,  Ji Hoon Do ,  Yong Uk Yoon

IPC: H04N19/14 ,  H04N19/12 ,  H04N19/176 ,  H04N19/60

CPC classification number: H04N19/14 ,  H04N19/12 ,  H04N19/176 ,  H04N19/60

Abstract: Disclosed herein are an image encoding/decoding method and apparatus. The image decoding method of the present disclosure may include obtaining maximum transform block size information, deriving a maximum transform block size on the basis of the maximum transform block size information, and, determining ether or not a secondary inverse transform is applied to the current block on the basis of the maximum transform block size and a horizontal size and a vertical size of a current block.

公开(公告)号：US12075090B2

公开(公告)日：2024-08-27

申请号：US18164097

申请日：2023-02-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Ho Lee ,  Hui Yong Kim ,  Se Yoon Jeong ,  Suk Hee Cho ,  Ha Hyun Lee ,  Jong Ho Kim ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/82 ,  H04N19/147 ,  H04N19/182

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/82 ,  H04N19/147 ,  H04N19/182

Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.

公开(公告)号：US12041227B2

公开(公告)日：2024-07-16

申请号：US17616083

申请日：2020-09-23

Applicant: Electronics and Telecommunications Research Institute ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Jin Ho Lee ,  Byeung Woo Jeon ,  Jee Yoon Park

IPC: H04N19/107 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/503 ,  H04N19/593

CPC classification number: H04N19/107 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/503 ,  H04N19/593

Abstract: Disclosed herein is an image encoding/decoding method and apparatus. The image decoding method includes deriving an intra prediction value by performing intra prediction with respect to a current block, deriving an inter prediction value by performing inter prediction with respect to the current block, deriving a combined inter intra prediction (CIIP) value by weighting the intra prediction value and the inter prediction value, and generating a reconstructed block of the current block using the CIIP value. The intra prediction is performed in a Planar mode.

公开(公告)号：US12034977B2

公开(公告)日：2024-07-09

申请号：US17256165

申请日：2019-06-28

Applicant: Electronics and Telecommunications Research Institute ,  CHIPS & MEDIA, INC ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Hui Yong Kim ,  Dae Yeon Kim ,  Wook Je Jeong ,  Dong Jin Park ,  Min Yong Jeon ,  Yung Lyul Lee ,  Nam Uk Kim ,  Myung Jun Kim ,  Ji Youn Jung ,  Jae Gon Kim

IPC: H04N19/82 ,  H04N19/107 ,  H04N19/176

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/176

Abstract: An image decoding is performed by steps including: determining whether or not to perform filtering on a boundary of a current block; determining a filtering strength on the boundary of the current block, and a number of samples used in filtering; and performing filtering on the boundary of the current block on the basis of the filtering strength and the number of samples used in filtering, where the number of samples used in filtering is determined on the basis of a size of the current block.

公开(公告)号：US12034930B2

公开(公告)日：2024-07-09

申请号：US17589400

申请日：2022-01-31

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Ha Hyun Lee ,  Jin Ho Lee ,  Hui Yong Kim ,  Yung Lyul Lee ,  Myung Jun Kim ,  Nam Uk Kim ,  Ji Youn Jung ,  Yang Woo Kim ,  Jae Gon Kim

IPC: H04N19/124 ,  H04N19/119 ,  H04N19/176

CPC classification number: H04N19/124 ,  H04N19/119 ,  H04N19/176

Abstract: There is provided an image encoding/decoding method and apparatus. The image decoding method comprises decoding size information of a quantization group from a bitstream, acquiring a delta quantization parameter of a current block on the basis of the size information of the quantization group, and deriving a quantization parameter for the current block on the basis of the delta quantization parameter.

公开(公告)号：US12015778B2

公开(公告)日：2024-06-18

申请号：US17894843

申请日：2022-08-24

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

Inventor： Jin Ho Lee ,  Jung Won Kang ,  Ha Hyun Lee ,  Sung Chang Lim ,  Hui Yong Kim ,  Jae Gon Kim ,  Do Hyeon Park ,  Yong Uk Yoon ,  Yung Lyul Lee

IPC: H04N19/13 ,  H04N19/172 ,  H04N19/184

CPC classification number: H04N19/13 ,  H04N19/172 ,  H04N19/184

Abstract: There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.

公开(公告)号：US20240155140A1

公开(公告)日：2024-05-09

申请号：US18417415

申请日：2024-01-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Won Kang ,  Ha Hyun Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/187 ,  H04N19/124 ,  H04N19/13 ,  H04N19/169 ,  H04N19/182 ,  H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91

CPC classification number: H04N19/187 ,  H04N19/124 ,  H04N19/13 ,  H04N19/182 ,  H04N19/188 ,  H04N19/30 ,  H04N19/31 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91 ,  H04N19/33

Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.

公开(公告)号：US11973944B2

公开(公告)日：2024-04-30

申请号：US17256157

申请日：2019-06-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Jin Ho Lee ,  Ha Hyun Lee ,  Hui Yong Kim

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96

Abstract: In this specification, a image decoding method is disclosed. The image decoding method of the present invention comprises, decoding block partition information of a current block included in a current picture, determining a partitioning scheme for the current block according to the block partition information and partitioning the current block using the partitioning scheme determined, wherein the partitioning scheme is determined according to whether the current block includes a boundary of the current picture.

公开(公告)号：US11924412B2

公开(公告)日：2024-03-05

申请号：US17746000

申请日：2022-05-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Ho Lee ,  Jung Won Kang ,  Hyun Suk Ko ,  Sung Chang Lim ,  Ha Hyun Lee ,  Dong San Jun ,  Hui Yong Kim

IPC: H04N19/11 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176

Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.

公开(公告)号：US11895329B2

公开(公告)日：2024-02-06

申请号：US17973835

申请日：2022-10-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang Lim ,  Jung Won Kang ,  Hyun Suk Ko ,  Ha Hyun Lee ,  Dong San Jun ,  Jin Ho Lee ,  Seung Hyun Cho ,  Hui Yong Kim ,  Jin Soo Choi

IPC: H04N19/583 ,  H04N19/51 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96 ,  H04N19/132 ,  H04N19/577 ,  H04N19/196 ,  H04N19/513 ,  H04N19/463 ,  H04N19/56

CPC classification number: H04N19/583 ,  H04N19/105 ,  H04N19/176 ,  H04N19/51 ,  H04N19/96 ,  H04N19/132 ,  H04N19/197 ,  H04N19/463 ,  H04N19/513 ,  H04N19/56 ,  H04N19/577

Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: generating a merge candidate list of a current block including at least one merge candidate corresponding to each of a plurality of reference picture lists; determining at least one piece of motion information by using the merge candidate list; and generating a prediction block of the current block by using the determined at least one piece of motion information.