公开(公告)号：US20250106389A1

公开(公告)日：2025-03-27

申请号：US18976452

申请日：2024-12-11

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Hui Yong KIM ,  Gwang Hoon PARK ,  Kyung Yong KIM ,  Sang Min KIM ,  Sung Chang LIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/105 ,  H04N19/103 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52

Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.

公开(公告)号：US20250080721A1

公开(公告)日：2025-03-06

申请号：US18949948

申请日：2024-11-15

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Sung Chang LIM ,  Jin Ho LEE ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Tae Hyun KIM ,  Dae Young LEE

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

Abstract: Disclosed herein is an image encoding/decoding method. The method of decoding the image includes structuring a motion information candidate list of a current block, selecting a first motion information candidate used for prediction of a first subblock in the current block from the motion information candidate list, selecting a second motion information candidate used for prediction of a second subblock in the current block from the motion information candidate list, generating a prediction sample of the first subblock by performing inter prediction with respect to the first subblock based on the first motion information candidate, and generating a prediction sample of the second subblock by performing inter prediction with the second subblock based on the second motion information candidate. The first and second motion information candidates are any one of candidates in first and second prediction directions in the motion information candidate list, respectively.

公开(公告)号：US20240323359A1

公开(公告)日：2024-09-26

申请号：US18737694

申请日：2024-06-07

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Dong San JUN ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Jin Soo CHOI ,  Tae Hyun KIM ,  Dae Young LEE ,  Young Su HEO

IPC: H04N19/105 ,  G06T3/02 ,  G06T5/50 ,  G06T5/80 ,  G06T7/246 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513

CPC classification number: H04N19/105 ,  G06T5/50 ,  G06T5/80 ,  G06T7/248 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/521 ,  G06T3/02 ,  H04N19/174

Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.

公开(公告)号：US20240146959A1

公开(公告)日：2024-05-02

申请号：US18406405

申请日：2024-01-08

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Gun BANG ,  Won Sik CHEONG ,  Gi Mun UM ,  Nam Ho HUR ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/593 ,  H04N19/107 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/96

CPC classification number: H04N19/593 ,  H04N19/107 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/96

Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

公开(公告)号：US20240146953A1

公开(公告)日：2024-05-02

申请号：US18393911

申请日：2023-12-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gun BANG ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Woo Woen GWUN ,  Tae Hyun KIM ,  Won Jun LEE

IPC: H04N19/517 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184

CPC classification number: H04N19/517 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184

Abstract: There is provided a method of decoding an image, the method comprising: decoding information for motion information prediction of a current block from a bitstream, predicting motion information of the current block based on the information, refining motion information of the current block by using the decoded information and the predicted motion information of the current block and reconstructing the current block based on the refined motion information of the current block.

公开(公告)号：US20240107002A1

公开(公告)日：2024-03-28

申请号：US18530617

申请日：2023-12-06

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Se Yoon JEONG ,  Hui Yong KIM ,  Sung Chang LIM ,  Jin Ho LEE ,  Ha Hyun LEE ,  Jong Ho KIM ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN ,  Gwang Hoon PARK ,  Kyung Yong KIM ,  Tae Ryong KIM ,  Han Soo LEE

IPC: H04N19/10 ,  H04N19/105 ,  H04N19/136 ,  H04N19/196

CPC classification number: H04N19/10 ,  H04N19/105 ,  H04N19/136 ,  H04N19/197 ,  H04N19/196 ,  H04N19/61

Abstract: A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted. At the generating of the prediction information, the prediction information is generated by using the information on the coding unit neighboring to the current coding unit

公开(公告)号：US20240080450A1

公开(公告)日：2024-03-07

申请号：US18500927

申请日：2023-11-02

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Jung Won KANG ,  Ha Hyun LEE ,  Sung Chang LIM ,  Jin Ho LEE ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Tae Hyun KIM ,  Dae Young LEE

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/169 ,  H04N19/176

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/176 ,  H04N19/1883

Abstract: The present invention discloses an image decoding method, the method including generating a candidate list including motion information derived from a spatial neighboring block and a temporal neighboring block adjacent to a current block; deriving motion information of the current block using the candidate list; generating a prediction block of the current block using the derived motion information; and updating the derived motion information in a motion information list, wherein the generating of the candidate list is performed in such a manner as to include at least one information of the motion information included in the updated motion information list in a block decoded before the current block.

公开(公告)号：US20230370634A1

公开(公告)日：2023-11-16

申请号：US18346917

申请日：2023-07-05

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong KIM ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin woong KIM ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/573 ,  H04N19/593 ,  H04N19/436 ,  H04N19/52 ,  H04N19/136 ,  H04N19/105 ,  H04N19/61

CPC classification number: H04N19/573 ,  H04N19/593 ,  H04N19/436 ,  H04N19/52 ,  H04N19/136 ,  H04N19/105 ,  H04N19/61

Abstract: The image decoding method according to the present invention comprises the steps of: determining the availability of a block adjacent to a current block; configuring a merge candidate list for the current block on the basis of the result of the determined availability; and performing motion compensation for the current block on the basis of the merge candidate list, wherein the step of determining availability comprises the steps of inducing block availability information on the adjacent block and inducing the availability of motion information on the adjacent block, and the step of determining the availability of the adjacent block is such that when there is more than one adjacent block, the availability of adjacent blocks can be determined in accordance with a predetermined order restriction.

公开(公告)号：US20230370633A1

公开(公告)日：2023-11-16

申请号：US18346914

申请日：2023-07-05

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong KIM ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin woong KIM ,  Gwang Hoon PARK ,  Kyung Yong KIM

IPC: H04N19/573 ,  H04N19/593 ,  H04N19/61 ,  H04N19/105 ,  H04N19/52 ,  H04N19/436 ,  H04N19/136

CPC classification number: H04N19/573 ,  H04N19/593 ,  H04N19/61 ,  H04N19/105 ,  H04N19/52 ,  H04N19/436 ,  H04N19/136

Abstract: The image decoding method according to the present invention comprises the steps of: determining the availability of a block adjacent to a current block; configuring a merge candidate list for the current block on the basis of the result of the determined availability; and performing motion compensation for the current block on the basis of the merge candidate list, wherein the step of determining availability comprises the steps of inducing block availability information on the adjacent block and inducing the availability of motion information on the adjacent block, and the step of determining the availability of the adjacent block is such that when there is more than one adjacent block, the availability of adjacent blocks can be determined in accordance with a predetermined order restriction.

公开(公告)号：US20230370585A1

公开(公告)日：2023-11-16

申请号：US18358871

申请日：2023-07-25

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Jung Won KANG ,  Hyun Suk KO ,  Sung Chang LIM ,  Jin Ho LEE ,  Dong San JUN ,  Hui Yong KIM ,  Gwang Hoon PARK ,  Jin Soo CHOI ,  Tae Hyun KIM ,  Dae Young LEE ,  Young Su HEO

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/137 ,  H04N19/172 ,  G06T5/00 ,  G06T7/246 ,  H04N19/51 ,  G06T5/50 ,  H04N19/176 ,  H04N19/139 ,  H04N19/513 ,  H04N19/174 ,  G06T3/00

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/137 ,  H04N19/172 ,  G06T5/006 ,  G06T7/248 ,  H04N19/51 ,  G06T5/50 ,  H04N19/176 ,  H04N19/139 ,  H04N19/521 ,  H04N19/174 ,  G06T3/0006

Abstract: The present invention relates to a method and apparatus for video encoding/decoding by using a geometric modified picture. The encoding method according to the present invention includes: generating a geometric modified picture by geometrically modifying a reference picture; and generating a first prediction block of a current block by performing inter prediction referencing the geometric modified picture.