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公开(公告)号：US20180322611A1
公开(公告)日：2018-11-08
申请号：US15971467
申请日：2018-05-04
Inventor： Gun BANG , Hui Yong KIM , Jin Soo CHOI , Jung Won KANG
IPC: G06T3/00
CPC classification number: G06T3/0062 , G06T3/0037 , G06T3/0087 , H04N13/243 , H04N13/271
Abstract: Disclosed is an apparatus and method of providing an image processing. An image processing method according to the present disclosure includes: obtaining at least one of image information and depth information of an omni-directional video; and mapping the obtained information to a three-dimensional coordinate system based on a particular three-dimensional figure.
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22.发明申请公开(公告)号：US20250039376A1
公开(公告)日：2025-01-30
申请号：US18916562
申请日：2024-10-15
Inventor： Jin Ho LEE , Jung Won KANG , Soo Woong KIM , Gun BANG , Ha Hyun LEE , Sung Chang LIM
IPC: H04N19/119 , H04N19/103 , H04N19/105 , H04N19/107 , H04N19/11 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/593
Abstract: Disclosed herein are an image encoding/decoding method and apparatus. The image decoding method includes acquiring a partitioning index of a current block from a bitstream, and generating a prediction sample of the current block by weighted-summing a prediction sample of a first subblock of the current block and a prediction sample of a second subblock of the current block based on the partitioning index. The partitioning index indicates a partitioning distance and a partitioning direction included in a predefined table.
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公开(公告)号：US20250039367A1
公开(公告)日：2025-01-30
申请号：US18788051
申请日：2024-07-29
Inventor： Sung Chang LIM , Jung Won KANG , Soo Woong KIM , Gun BANG , Jin Ho LEE , Ha Hyun LEE
IPC: H04N19/117 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/82
Abstract: The present invention relates to a video decoding method, according to embodiment of the invention, image decoding method comprises, acquiring a reconstructed luma block of a current block, determining whether a cross-component adaptive loop filter is applied to the current block, acquiring a reconstructed chroma block of the current block, to which an adaptive loop filter is applied, when the cross-component adaptive loop filter is applied to the current block and acquiring a final reconstructed chroma block of the current block, to which the cross-component loop filter is applied, using the reconstructed luma block and the reconstructed chroma block, to which the adaptive loop filter is applied.
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公开(公告)号：US20230169692A1
公开(公告)日：2023-06-01
申请号：US17981251
申请日：2022-11-04
Inventor： Soo-Woong KIM , Jung-Won KANG , Gun BANG , Seong-Jun BAE , Jin-Ho LEE , Ha-Hyun LEE , Sung-Chang LIM
Abstract: Disclosed herein are an apparatus and method for compressing 3D volume data. The apparatus for compressing three-dimensional (3D) volume data includes one or more processor, and execution memory configured to store at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive 3D volume data for data compression, select necessary voxels that contribute to formation of a geometric surface from the 3D volume data using a marching cubes algorithm, represent location information of the selected necessary voxels by a tree structure, and binarize the location information of the necessary voxels by serializing the tree structure, and quantize truncated signed distance values to surfaces adjacent to the necessary voxels constituting a volume from the 3D volume data using the binarized location information of the necessary voxels.
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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.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20220417507A1
公开(公告)日：2022-12-29
申请号：US17779093
申请日：2020-11-23
Applicant: Electronics and Telecommunications Research Institute , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seoung-Jun OH , Woong LIM , Gun BANG , Tae-Jin LEE , Dong-Gyu SIM , Jun-Taek PARK , Min-Hun LEE , Jong-Seok LEE
IPC: H04N19/117 , H04N19/80 , H04N19/105 , H04N19/176
Abstract: Disclosed herein are a video processing method, apparatus and storage medium using the resolution of a reference picture. Filtering is performed based on resolutions of reference pictures of blocks forming a boundary. The resolutions of the reference pictures may define filtering. Depending on whether the resolutions of the reference pictures are different from each other, one or more filter selection parameters for filtering may be determined or updated. Further, based on whether the resolutions of the reference pictures are different from each other, the boundary strength of the filter may be determined. Because filtering is defined using the resolutions of reference pictures, performance of encoding and/or decoding may be improved.
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公开(公告)号：US20220408111A1
公开(公告)日：2022-12-22
申请号：US17894684
申请日：2022-08-24
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 , H04N19/597 , H04N19/176 , H04N19/46 , H04N19/96 , H04N19/107 , H04N19/44
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.
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28.发明申请公开(公告)号：US20220321890A1
公开(公告)日：2022-10-06
申请号：US17629281
申请日：2020-07-23
Applicant: Electronics and Telecommunications Research Institute , INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY
Inventor： Woong LIM , Jin-Young LEE , Gun BANG , Hui-Yong KIM
IPC: H04N19/137 , H04N19/159 , H04N19/182 , H04N19/176
Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using geometric partitioning. A target block may be geometrically partitioned, and multiple partitioned regions may be generated from geometric partitioning. Each partitioned region may have a non-square and a non-rectangular shape. Different prediction schemes may be applied to different partitioned regions. The different prediction schemes for multiple partitioned regions may be signaled as explicit information, and may be derived using information about a coding parameter for the target block or the like.
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公开(公告)号：US20210289201A1
公开(公告)日：2021-09-16
申请号：US17260948
申请日：2019-07-18
Inventor： Gun BANG , Hui Yong KIM , Dong Gyu SIM , Seoung Jun OH , Sea Nae PARK , Jun Taek PARK , Jong Seok LEE
IPC: H04N19/117 , H04N19/105 , H04N19/176 , H04N19/167 , H04N19/159 , H04N19/186
Abstract: There is provided an image decoding method comprising: deriving a first prediction value of a current block by using at least one sample included in a reference block, obtaining an illumination compensation parameter on the basis of a predetermined reference region, deriving a second prediction value of the current block by applying the illumination compensation parameter to the first prediction value and reconstructing the current block on the basis of the second prediction value.
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公开(公告)号：US20210218993A1
公开(公告)日：2021-07-15
申请号：US17216881
申请日：2021-03-30
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 , H04N19/597 , H04N19/176 , H04N19/46 , H04N19/96 , H04N19/107 , H04N19/44
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.
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