公开(公告)号：US11699242B2

公开(公告)日：2023-07-11

申请号：US17180125

申请日：2021-02-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Sung Yoon ,  Byung Gyu Chae

IPC: G06T7/536 ,  G06T7/571 ,  G06F17/14 ,  G06N3/08 ,  G06T15/20

CPC classification number: G06T7/536 ,  G06F17/14 ,  G06N3/08 ,  G06T7/571 ,  G06T15/205 ,  G06T2207/10052

Abstract: A system and method for hologram synthesis and processing capable of synthesizing holographic 3D data and displaying (or reconstructing) a full 3D image at high speed using a deep learning engine. The system synthesizes or generates a digital hologram from a light field refocus image input using the deep learning engine. That is, RGB-depth map data is acquired at high speed using the deep learning engine, such as a convolutional neural network (CNN), from real 360° multi-view color image information and the RGB-depth map data is used to produce hologram content. In addition, the system interlocks hologram data with user voice recognition and gesture recognition information to display the hologram data at a wide viewing angle and enables interaction with the user.

公开(公告)号：US12260612B2

公开(公告)日：2025-03-25

申请号：US17509615

申请日：2021-10-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jong Sung Kim ,  Seong Il Yang ,  Min Sung Yoon ,  Si Hwan Jang

IPC: G06V10/764 ,  G06V10/28 ,  G06V20/40

Abstract: Provided is an impact motion recognition system for screen-based multi-sport coaching. The impact motion recognition system for screen-based multi-sport coaching includes: a high-speed stereo camera device installed on an upper end of a target object including a hitting body and an moving body and configured to acquire a stereo image sequence in which the hitting body and the moving body are photographed; an object detection unit configured to detect an object in the acquired stereo image sequence; a moving body recognition unit configured to identify whether an impact motion has occurred in the detected object to recognize the moving body; a hitting body detection unit configured to, based on the moving body being recognized through the moving body recognition unit, detect the object excluding the moving body as the hitting body; a target object tracking unit configured to continuously detect a center point of the moving body and a feature point of the hitting body in a subsequent stereo image sequence using characteristics of the moving body and the hitting body that are detected, and continuously track the center point of the moving body and the feature point of the hitting body until the center point of the moving body and the feature point of the hitting body are not detected; and a motion analysis unit configured to analyze three-dimensional (3D) motion information of the target object using the center point of the moving body and the feature point of the hitting body, which are detected through the target object tracking unit, and high-speed stereo camera correction data.

公开(公告)号：US11532122B2

公开(公告)日：2022-12-20

申请号：US17191969

申请日：2021-03-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Sung Yoon ,  Soo Myung Park

IPC: G06T17/00 ,  G06T7/50 ,  G06F3/01 ,  G06F3/16 ,  G03H1/16 ,  G03H1/08

Abstract: A method of generating hologram data in a holographic display apparatus, including a hologram processing device generating hologram data and a display terminal reconstructing a hologram image in a three-dimensional (3D) space on the basis of the generated hologram data, includes generating depth map image data from input image data by using a deep learning engine for generating a depth map and calculating a complex value hologram on the basis of the depth map image data and the input image data to generate the hologram data.

公开(公告)号：US10185288B2

公开(公告)日：2019-01-22

申请号：US15135922

申请日：2016-04-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Sung Yoon

IPC: G06K9/00 ,  G03H1/22

Abstract: A method and apparatus for measuring a quality of a holographic image are provided. An image quality measuring method may include acquiring a first image including a holographic image in a background, and a second image that does not include a holographic image, the first image and the second image being on the same background, extracting a gray level value and a dark-noise counted level value from the first image in a selected range of the first image, extracting a gray level value and a dark-noise counted level value from the second image in the same range as the selected range of the first image, and determining a holographic contrast ratio (HCR) of the holographic image based on the extracted gray level values and the extracted dark-noise counted level values.

公开(公告)号：US09857523B2

公开(公告)日：2018-01-02

申请号：US14949631

申请日：2015-11-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min Sung Yoon

IPC: F21V8/00

CPC classification number: G02B6/005 ,  G02B6/0026 ,  G02B6/0028

Abstract: The present invention relates to an apparatus for controlling a light beam path.Specifically, the apparatus for controlling the light beam path outputs light beams with a uniform intensity expanded corresponding to a size of an active area of a display by using characteristics of an incident wave field of light beams having coherence.