公开(公告)号：US20240029307A1

公开(公告)日：2024-01-25

申请号：US18070924

申请日：2022-11-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong Sung KIM ,  Seong Il YANG ,  Minsung YOON

IPC: G06T7/80 ,  G06V40/10

CPC classification number: G06T7/85 ,  G06V40/10 ,  G06T2207/10024

Abstract: Provided is a method of synthesizing 3D joint data based on a multi-view RGB-D camera. The method of synthesizing 3D joint data includes: converting joint data collected from a depth camera of each of a plurality of RGB-D cameras from a depth camera coordinate system of each of the RGB-D cameras to a color camera coordinate system of each of the RGB-D cameras; calculating a confidence level of the joint data converted to the color camera coordinate system using a 3D joint recognition algorithm based on the joint data converted to the color camera coordinate system; applying a rotation matrix and a translation vector to the joint data and converting the joint data to a predetermined reference coordinate system; and obtaining a weighted-average of the joint data converted to the reference coordinate system using a weight calculated based on the confidence level to synthesize the joint data.

公开(公告)号：US20190332055A1

公开(公告)日：2019-10-31

申请号：US16191307

申请日：2018-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Minsung YOON

IPC: G03H1/26

Abstract: Provided is an apparatus and method for encoding a hologram and evaluating a holographic image quality for an amplitude-modulated hologram. A hologram encoding method may include acquiring three-dimensional (3D) information of a scene or an object; generating hologram information based on the 3D information; deriving a real number hologram function by extracting a real number part and an imaginary number part from the hologram information; determining an intermediate hologram function based on a sign characteristic of the real number hologram function; and determining encoded hologram information based on the intermediate hologram function.