公开(公告)号：US20230169692A1

公开(公告)日：2023-06-01

申请号：US17981251

申请日：2022-11-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soo-Woong KIM ,  Jung-Won KANG ,  Gun BANG ,  Seong-Jun BAE ,  Jin-Ho LEE ,  Ha-Hyun LEE ,  Sung-Chang LIM

IPC: G06T9/00 ,  G06T9/40

CPC classification number: G06T9/001 ,  G06T9/40

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.

公开(公告)号：US20240144578A1

公开(公告)日：2024-05-02

申请号：US18114118

申请日：2023-02-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soo-Woong KIM ,  Jung-Won KANG ,  Ji-Hoon DO ,  Gun BANG ,  Seong-Jun BAE ,  Jin-Ho LEE ,  Ha-Hyun LEE

IPC: G06T15/04 ,  G06T9/00 ,  G06T17/20

CPC classification number: G06T15/04 ,  G06T9/00 ,  G06T17/20

Abstract: Disclosed herein is a method for generating a texture map of a 3D mesh includes encoding a texture map of a 3D mesh, quantizing the encoded texture map, decoding the quantized texture map, performing rendering using the decoded texture map, and updating the texture map of the 3D mesh based on the value of a loss function.

公开(公告)号：US20230171390A1

公开(公告)日：2023-06-01

申请号：US17981426

申请日：2022-11-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seong-Jun BAE ,  Jung-Won KANG ,  Soo-Woong KIM ,  Gun BANG ,  Jin-Ho LEE ,  Ha-Hyun LEE ,  Sung-Chang LIM

IPC: H04N13/161 ,  H04N19/30 ,  H04N19/187

CPC classification number: H04N13/161 ,  H04N19/30 ,  H04N19/187 ,  H04N2013/0077

Abstract: Disclosed herein are an image compression apparatus and method. The image conversion method includes generating a multi-plane image reconfigured into layers in a depth direction based on multiple pieces of multi-view image data, generating an aggregated layer by aggregating the layers of the multi-plane image into at least one layer, and converting a multi-plane image including the aggregated layer into a two-dimensional (2D) atlas image.