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公开(公告)号：US20250095216A1
公开(公告)日：2025-03-20
申请号：US18889565
申请日：2024-09-19
Inventor： Soo Woong KIM , Gun BANG , Ji Hoon DO , Seong Jun BAE , Jin Ho LEE , Ha Hyun LEE , Jung Won KANG
IPC: G06T9/00
Abstract: This disclosure provides a method and apparatus for compressing 3-dimensional volume data. The method for encoding a TSDF volume may comprise: lossily encoding magnitude information of a Truncated Signed Distance Field (TSDF) volume based on a hyperprior model; and losslessly encoding sign information of the TSDF volume based on the hyperprior model, wherein the lossy encoding comprises selecting and entropy-encoding some elements from a latent vector for the TSDF volume based on selection information obtained through the hyperprior model.
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公开(公告)号：US20240161380A1
公开(公告)日：2024-05-16
申请号：US18503266
申请日：2023-11-07
Inventor： Seong Jun BAE , Jung Won KANG , Soo Woong KIM , Ji Hoon DO , Gun BANG , Jin Ho LEE , Ha Hyun LEE
Abstract: A pixel ray crossing-based multi-viewpoint MPI geometry generation method, device, and recording medium of the present disclosure, the method may comprise obtaining a multi-viewpoint image by original cameras which shoot a different viewpoint, obtaining a multi-plane image (MPI) based on the multi-viewpoint image, obtaining, based on the MPI, an atlas image in a 2D form, and obtaining a bitstream by encoding the atlas image.
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3.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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5.发明申请公开(公告)号：US20230015638A1
公开(公告)日：2023-01-19
申请号：US17779478
申请日：2020-11-23
Inventor： Jin Ho LEE , Jung Won KANG , Soo Woong KIM , Gun BANG , Ha Hyun LEE , Sung Chang LIM
IPC: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/119 , H04N19/46 , H04N19/159 , H04N19/186 , 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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Patent Agency Ranking
公开(公告)号：US20220408085A1
公开(公告)日：2022-12-22
申请号：US17778351
申请日：2020-11-23
Inventor： Sung Chang LIM , Jung Won KANG , Soo Woong KIM , Gun BANG , Jin Ho LEE , Ha Hyun LEE
IPC: H04N19/117 , H04N19/186 , H04N19/176 , H04N19/70 , H04N19/172 , 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：US20240153198A1
公开(公告)日：2024-05-09
申请号：US18484181
申请日：2023-10-10
Inventor： Seong Jun BAE , Jung Won KANG , Soo Woong KIM , Ji Hoon DO , Gun BANG , Jin Ho LEE , Ha Hyun LEE
IPC: G06T15/20
CPC classification number: G06T15/20 , G06T2210/56
Abstract: The present invention relates to a method and apparatus for filling a blank area of MPI view plane based on a pixel ray path. A method for generating multi plane image (MPI) data according to an embodiment of the present disclosure may comprise: calculating a pixel value according to each view for each photographed object, based on a plurality of input images photographed from a plurality of views; generating a view plane at a specific point by recording the calculated pixel value on one MPI layer determined based on the spatial position of the corresponding photographed object among a plurality of MPI layers; and generating MPI data by additionally recording the pixel value for the view.
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公开(公告)号：US20230007290A1
公开(公告)日：2023-01-05
申请号：US17773747
申请日：2020-11-26
Inventor： Sung Chang LIM , Jung Won KANG , Soo Woong KIM , Gun BANG , Jin Ho LEE , Ha Hyun LEE
IPC: H04N19/46 , H04N19/96 , H04N19/186 , H04N19/176
Abstract: Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether transform/inverse transform is skipped in a current block; when transform/inverse transform is skipped in the current block according to the transform skip mode flag, determining that secondary transform/inverse transform is skipped in the current block; and when transform/inverse transform is not skipped in the current block according to the transform skip mode flag, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, determining whether secondary transform/inverse transform is skipped in the current block based on the transform matrix index.
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公开(公告)号：US20210233282A1
公开(公告)日：2021-07-29
申请号：US17124226
申请日：2020-12-16
Inventor： Soo Woong KIM , Jung Won KANG , Gun BANG , Jin Ho LEE , Ha Hyun LEE , Sung Chang LIM
Abstract: The present disclosure provides a multi-view image decoding method including: obtaining, from a bitstream, three-dimensional geometry information indicating a three-dimensional space of a multi-view image, view independent component information indicating a view independent component, which is uniformly applied to every view, and view dependent component information indicating a view dependent component, which is differently applied according to views; determining a view dependent component for a texture map of a current view from the view dependent component information; generating the texture map of the current view from a view independent component of the view independent component information and the determined view dependent component for the current view; and reconstructing a current view image according to a three-dimensional space that is constructed according to the texture map of the current view and the three-dimensional geometry information.
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公开(公告)号：US20210217229A1
公开(公告)日：2021-07-15
申请号：US17111234
申请日：2020-12-03
Applicant: Electronics and Telecommunications Research Institute , HANDONG GLOBAL UNIVERCITY INDUSTRY- ACADEMIC COOPERATION FOUNDATION
Inventor： Ha Hyun LEE , Jung Won KANG , Soo Woong KIM , Gun BANG , Jin Ho LEE , Sung Chang LIM , Sung Soo HWANG , Se Hui KANG , Ji Won MOON , Mu Hyun BACK , Jin Kyu LEE , Hyun Min HAN
Abstract: The present invention relates to a plenoptic cloud generation method, the method of generating a plenoptic point cloud according to one embodiment of the present invention, the method comprises, obtaining a two-dimensional (2D) image for each view and depth information obtained from a plurality of cameras, determining a method of generating a plenoptic point cloud and generating the plenoptic point cloud by applying the determined method of generating the plenoptic point cloud to at least one of the 2D image for each view or the depth information, wherein the method of generating the plenoptic point cloud includes at least one of a simultaneous generation method of the point cloud and a sequential generation method of the point cloud.
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