-
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.
-
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.
-
公开(公告)号:US20220232221A1
公开(公告)日:2022-07-21
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 , H04N19/60 , H04N19/176
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.
-
4.
公开(公告)号:US20240388722A1
公开(公告)日:2024-11-21
申请号:US18785984
申请日:2024-07-26
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
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.
-
5.
公开(公告)号:US20240064295A1
公开(公告)日:2024-02-22
申请号:US18495579
申请日:2023-10-26
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: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/184 , H04N19/593 , H04N19/186
CPC classification number: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/184 , H04N19/593 , H04N19/186 , 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.
-
6.
公开(公告)号:US20220232230A1
公开(公告)日:2022-07-21
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 , H04N19/18 , H04N19/50 , H04N19/119
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: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.
-
8.
公开(公告)号:US20210281838A1
公开(公告)日:2021-09-09
申请号:US17258124
申请日:2019-07-05
Applicant: Electronics and Telecommunications Research Institute , lNDUSTRY-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: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/593 , H04N19/184 , H04N19/186
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:US20240414350A1
公开(公告)日:2024-12-12
申请号:US18810399
申请日:2024-08-20
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
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 whether 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:US20220385888A1
公开(公告)日:2022-12-01
申请号:US17761908
申请日:2020-09-21
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 , Jae Gon KIM , Ji Hoon DO , Do Hyeon PARK , Yong Uk YOON
IPC: H04N19/105 , H04N19/132 , H04N19/186 , H04N19/176
Abstract: An image encoding/decoding method and apparatus are disclosed. The method of decoding an image according to the present invention, comprises, generating a first prediction block of a current block, generating a second prediction block of the current block and generating a final prediction sample of the current block using a sample unit weighted sum of the first prediction block and the second prediction block, wherein a weight used for the sample unit weighted sum is determined based on a location of a current luma sample and a geometric prediction mode (GPM) boundary line for partitioning the current block.
-
-
-
-
-
-
-
-
-