-
公开(公告)号：US20220312009A1
公开(公告)日：2022-09-29
申请号：US17621151
申请日：2020-06-22
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
Inventor： Gun BANG , Jin-Young LEE , Woong LIM , Hui-Yong KIM
IPC: H04N19/119 , H04N19/172 , H04N19/96 , H04N19/117 , H04N19/86
Abstract: Disclosed herein are a method and apparatus for image encoding and image decoding using region segmentation. A picture is divided into multiple sub-pictures, and encoding and/or decoding are performed on the multiple sub-pictures resulting from division. Encoding operations and/or decoding operations on the sub-pictures may be independently performed. Merging and filtering are applied to reconstructed sub-pictures generated by decoding, and a reconstructed picture is generated after processing of merging and filtering.
-
公开(公告)号：US20220224932A1
公开(公告)日：2022-07-14
申请号：US17614497
申请日：2020-09-22
IPC: H04N19/46 , H04N19/82 , H04N19/176 , H04N19/169
Abstract: The present invention relates to a video decoding method, the video decoding method according to an embodiment of the present invention comprises, obtaining sub-picture information of a current sub-picture through at least one signaling level and decoding the current sub-picture using the sub-picture information, wherein the sub-picture information is obtained for each decoded sub-picture.
-
公开(公告)号：US20190149823A1
公开(公告)日：2019-05-16
申请号：US16188587
申请日：2018-11-13
Inventor： Woong LIM , Seung-Hyun CHO , Joo-Young LEE , Youn-Hee KIM , Jin-Wuk SEOK , Jong-Ho KIM , Dae-Yeol LEE , Se-Yoon JEONG , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/124
CPC classification number: H04N19/124 , H04N19/70
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In quantization and dequantization, multiple quantization methods and multiple dequantization methods may be used. The multiple quantization methods include a variable-rate step quantization method and a fixed-rate step quantization method. The variable-rate step quantization method may be a quantization method in which an increment in a quantization step depending on an increase in a value of a quantization parameter by 1 is not fixed. The fixed-rate step quantization method may be a quantization method in which the increment in the quantization step depending on the increase of the value of the quantization parameter by 1 is fixed.
-
公开(公告)号：US20240372982A1
公开(公告)日：2024-11-07
申请号：US18292869
申请日：2022-07-26
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Woong LIM , Hyoung-Jin KWON , Dong-Hyun KIM , Youn-Hee KIM , Jong-Ho KIM , Ji-Hoon DO , Joo-Young LEE , Se-Yoon JEONG , Jin-Soo CHOI , Tae-Jin LEE , Hae-Chul CHOI , Dae-Hyeok GWON , Hee-Ji HAN
IPC: H04N19/105 , H04N19/176 , H04N19/88
Abstract: Disclosed therein are a method, an apparatus, and a storage medium for image encoding/decoding. Templating matching is used for prediction for a target block. Prediction information to be applied to encoding of the target block is determined, and prediction for the target block that uses the determined prediction information is performed. The prediction information includes a list and multiple candidates in the list. When the multiple candidates in the list are configured, template matching between blocks may be used. A candidate selected from among multiple candidates configured using template matching is used for prediction for the target block.
-
公开(公告)号：US20240073418A1
公开(公告)日：2024-02-29
申请号：US18500807
申请日：2023-11-02
IPC: H04N19/119 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/70
CPC classification number: H04N19/119 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/70 , H04N19/176
Abstract: Disclosed herein are a method, an apparatus and a storage medium for image encoding/decoding. For efficient image compression, efficient syntax is required. Pieces of information required for image decoding may be structurally or semantically associated with each other. Based on this association, whether signaling of one piece of information is to be performed may be determined based on another piece of information. Further, based on this association, the signaling order or priority of multiple pieces of information may be determined. Depending on this determination, based on the number of subpictures present in a picture in high-level syntax, the number of slices present in the picture may be selectively signaled.
-
Patent Agency Ranking
公开(公告)号：US20230036579A1
公开(公告)日：2023-02-02
申请号：US17955278
申请日：2022-09-28
IPC: H04N19/105 , H04N19/70 , H04N19/174 , H04N19/169
Abstract: Disclosed herein are a method, an apparatus and a storage medium for performing encoding/decoding on an image using a subpicture. A picture may be partitioned into various units such as subpictures and slices, and various syntax elements and structures may be used to specify the units. In an embodiment, there is a method for configuring a reference picture list for motion compensation in the case where the location of a reference subpicture to be referred to for motion compensation is different from the location of a target subpicture. Further, in an embodiment, there is provided a method for providing the configuration of a reference picture list and an override on the number of activated reference indexes.
-
17.发明申请公开(公告)号：US20220272321A1
公开(公告)日：2022-08-25
申请号：US17620563
申请日：2020-06-19
Inventor： Gun BANG , Woong LIM , Hui-Yong KIM
IPC: H04N19/105 , H04N19/176 , H04N19/174 , H04N19/46
Abstract: Disclosed herein are a method, apparatus, and storage medium for image encoding/decoding using a reference picture. A reference picture list is configured for encoding/decoding of a target block. Upon configuring the reference picture list, a sequence parameter set and a slice header are used. A picture is divided into sub-pictures and/or slices, and reference picture lists are configured for the sub-pictures and/or slices resulting from division. Reference picture lists for slices may be related to each other, and a current reference picture and a future reference picture in one reference picture list may be used in an additional reference picture list.
-
18.发明申请公开(公告)号：US20200175668A1
公开(公告)日：2020-06-04
申请号：US16697585
申请日：2019-11-27
Inventor： Se-Yoon JEONG , Dae-Yeol LEE , Seung-Hyun CHO , Hyunsuk KO , Youn-Hee KIM , Jong-Ho KIM , Jin-Wuk SEOK , Joo-Young LEE , Woong LIM , Hui-Yong KIM , Jin-Soo CHOI
Abstract: Disclosed herein are a method and apparatus for measuring video quality based on a perceptually sensitive region. The quality of video may be measured based on a perceptually sensitive region and a change in the perceptually sensitive region. The perceptually sensitive region includes a spatial perceptually sensitive region, a temporal perceptually sensitive region, and a spatio-temporal perceptually sensitive region. Perceptual weights are applied to a detected perceptually sensitive region and a change in the detected perceptually sensitive region. Distortion is calculated based on the perceptually sensitive region and the change in the perceptually sensitive region, and a result of quality measurement for a video is generated based on the calculated distortion.
-
公开(公告)号：US20200162736A1
公开(公告)日：2020-05-21
申请号：US16684041
申请日：2019-11-14
Inventor： Jin-Wuk SEOK , Hyunsuk KO , Youn-Hee KIM , Jong-Ho KIM , Joo-Young LEE , Woong LIM , Se-Yoon JEONG , Seung-Hyun CHO , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/124 , H04N19/18 , H04N19/184
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In image encoding, encoding using multiple quantization parameters is performed on a transform coefficient. Two quantized coefficients are generated through encoding that uses two quantization parameters. Based on the two quantized coefficients, a quantized coefficient difference is generated. Information about the quantized coefficient difference is transmitted from an encoding apparatus to a decoding apparatus through binary encoding. The information about the quantized coefficient difference may be selectively transmitted. By means of the information about the quantized coefficient difference, a high-quality video may be provided.
-
公开(公告)号：US20230083128A1
公开(公告)日：2023-03-16
申请号：US17978732
申请日：2022-11-01
IPC: H04N19/119 , H04N19/184 , H04N19/174 , H04N19/70 , H04N19/172
Abstract: Disclosed herein are a method, an apparatus and a storage medium for image encoding/decoding. For efficient image compression, efficient syntax is required. Pieces of information required for image decoding may be structurally or semantically associated with each other. Based on this association, whether signaling of one piece of information is to be performed may be determined based on another piece of information. Further, based on this association, the signaling order or priority of multiple pieces of information may be determined. Depending on this determination, based on the number of subpictures present in a picture in high-level syntax, the number of slices present in the picture may be selectively signaled.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.015 seconds)
