公开(公告)号：US20140344470A1

公开(公告)日：2014-11-20

申请号：US14360174

申请日：2012-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin Young Lee ,  Bong Ho Lee ,  Kug Jin Yun ,  Won Sik Cheong ,  Nam Ho Hur ,  Jae Gon Kim ,  Doo San Baek

IPC: H04N21/236 ,  H04L29/06

CPC classification number: H04N21/236 ,  H04L65/607 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/25825 ,  H04N21/2662

Abstract: A method and apparatus for a streaming service to provide scalability and view information are provided. When a scalable video or multi-view video is transmitted using a Moving Picture Experts Group-2 (MPEG-2) system, scalability information or view information regarding the scalable video or multi-view video in a payload may be used. Using the scalability information or view information, a packetized scalable video or multi-view video may be efficiently adapted to various terminal performances, various network characteristics, a specific user preference, and the like.

Abstract translation: 提供了一种用于提供可扩展性和视图信息的流服务的方法和装置。 当使用运动图像专家组-2（MPEG-2）系统发送可伸缩视频或多视点视频时，可以使用有关负载中的可伸缩视频或多视图视频的可扩展性信息或视图信息。 使用可扩展性信息或视图信息，分组化可伸缩视频或多视图视频可以有效地适应于各种终端性能，各种网络特性，特定用户偏好等。

公开(公告)号：US12081774B2

公开(公告)日：2024-09-03

申请号：US17614935

申请日：2020-05-29

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: H04N19/176 ,  H04N19/119 ,  H04N19/18 ,  H04N19/50

CPC classification number: H04N19/176 ,  H04N19/119 ,  H04N19/18 ,  H04N19/50

Abstract: Disclosed herein is a video decoding method including determining a zero-out width threshold and a zero-out height threshold for distinguishing between a transform coefficient coding region and a zero-out region of a current block according to a size of the current block, determining the transform coefficient coding region and the zero-out region of the current block according to the zero-out width threshold and the zero-out height threshold, acquiring transform coefficient information of the transform coefficient coding region from a bitstream and determining a level of a transform coefficient of the transform coefficient coding region according to the transform coefficient information, determining a level of a transform coefficient of the zero-out region as 0 without acquiring transform coefficient information, and reconstructing the current block by inversely transforming the transform coefficient of the current block.

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：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：US11818340B2

公开(公告)日：2023-11-14

申请号：US17258124

申请日：2019-07-05

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 ,  Ji Hoon Do ,  Yong Uk Yoon ,  Do Hyeon Park ,  Yung Lyul Lee

IPC: H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/593 ,  H04N19/119 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/593 ,  H04N19/119 ,  H04N19/70 ,  H04N19/96

Abstract: There is provided an image encoding/decoding method and apparatus. An image decoding method according to the present invention may comprise reconstructing a most frequent mode (MFM) indicator indicating whether or not an intra prediction mode of a current block is a predetermined intra prediction mode, deriving, on the basis of the MFM indicator, the intra prediction mode of the current block, and generating a prediction block of the current block by performing intra prediction on the current block on the basis of the intra prediction mode.

公开(公告)号：US11765386B2

公开(公告)日：2023-09-19

申请号：US17890972

申请日：2022-08-18

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  CHIPS&MEDIA, INC ,  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 ,  Ji Yeon Jung ,  Nam Uk Kim ,  Myung Jun Kim ,  Yang Woo Kim ,  Dae Yeon Kim ,  Jae Gon Kim

IPC: H04N7/12 ,  H04N19/593 ,  H04N19/107 ,  H04N19/127 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  G06T9/00 ,  H04N19/189 ,  H04N19/132

CPC classification number: H04N19/593 ,  G06T9/004 ,  H04N19/107 ,  H04N19/127 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/196 ,  H04N19/503 ,  H04N19/132

Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.

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.

公开(公告)号：US11457238B2

公开(公告)日：2022-09-27

申请号：US17420106

申请日：2019-12-27

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY ,  CHIPS & MEDIA, INC ,  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 ,  Ji Yeon Jung ,  Nam Uk Kim ,  Myung Jun Kim ,  Yang Woo Kim ,  Dae Yeon Kim ,  Jae Gon Kim

IPC: H04N7/12 ,  H04N19/593 ,  H04N19/107 ,  H04N19/127 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/503 ,  G06T9/00 ,  H04N19/189 ,  H04N19/132

Abstract: Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.