公开(公告)号：US09426447B2

公开(公告)日：2016-08-23

申请号：US14049673

申请日：2013-10-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee Kyung Lee ,  In Jae Lee ,  Ji Hun Cha ,  Whoi Yul Kim ,  Dong Chan Cho

IPC: H04N13/00 ,  H04N13/02 ,  G06F3/01

CPC classification number: H04N13/246 ,  G06F3/013

Abstract: A gaze tracking apparatus and method are provided that may calculate a three-dimensional (3D) position of a user using at least two wide angle cameras, may perform panning, tilting, and focusing based on position information of the user and eye region detection information, using a narrow angle camera, may detect pupil center information and corneal reflected light information from an eye image acquired through an operation of the narrow angle camera, and may finally calculate gaze position information from the pupil center information and the corneal reflected light information.

Abstract translation: 提供了可以使用至少两个广角摄像机来计算用户的三维（3D）位置的注视跟踪设备和方法，可以基于用户的位置信息和眼​​睛区域检测信息进行平移，倾斜和聚焦 使用窄角度摄像机，可以从通过窄角度摄像机的操作获取的眼睛图像中检测瞳孔中心信息和角膜反射光信息，并且可以最终从瞳孔中心信息和角膜反射光信息计算注视位置信息。

公开(公告)号：US11694303B2

公开(公告)日：2023-07-04

申请号：US16822654

申请日：2020-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hee Kyung Lee ,  Gi Mun Um ,  Jeong Il Seo ,  Seong Yong Lim ,  Joung Il Yun ,  Won Sik Cheong

IPC: G06T3/40 ,  G06F9/38 ,  G06F9/48 ,  G06T19/00

CPC classification number: G06T3/4038 ,  G06F9/3836 ,  G06F9/48 ,  G06T19/006 ,  G06T2210/52

Abstract: Disclosed herein is a method of creating an image stitching workflow including acquiring 360-degree virtual reality (VR) image parameters necessary to makes a request for image stitching and create the image stitching workflow, acquiring a list of functions applicable to the image stitching workflow, creating the image stitching workflow based on functions selected from the list of functions, determining the number of media processing entities necessary to perform tasks configuring the image stitching workflow and generating a plurality of media processing entities according to the determined number of media processing entities, and allocating the tasks configuring the image stitching workflow to the plurality of media processing entities.

公开(公告)号：US09857870B2

公开(公告)日：2018-01-02

申请号：US14564550

申请日：2014-12-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Hee Kyung Lee ,  Whoi Yul Kim ,  Hoon Jo

IPC: G06F3/01 ,  H04N7/18 ,  H04N7/14 ,  G06K9/00 ,  G06K9/20

CPC classification number: G06F3/013 ,  G06K9/00604 ,  G06K9/209 ,  H04N7/144 ,  H04N7/18

Abstract: Provided is a gaze tracking apparatus for a user wearing a vision aid, the apparatus including a lighting element unit including a first infrared lighting element and a second infrared lighting element to radiate an infrared light to a user, an image acquirer to acquire an eye image of the user, the eye image including a first corneal reflection light, a second corneal reflection light, a first lens reflection light, and a second lens reflection light, and a processor to turn off the second infrared lighting element when interference occurs between the second lens reflection light and the first corneal reflection light in the acquired eye image, and to compute a gaze position of the user based on user calibration information, and coordinates of the first corneal reflection light.

公开(公告)号：US10558881B2

公开(公告)日：2020-02-11

申请号：US15662616

申请日：2017-07-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Cho ,  Soon-heung Jung ,  Hyun Cheol Kim ,  Jeongil Seo ,  Joo Myoung Seok ,  Sangwoo Ahn ,  Seung Jun Yang ,  Injae Lee ,  Hee Kyung Lee ,  Seong Yong Lim

IPC: G06K9/36 ,  G06K9/20 ,  H04N9/097 ,  G06T3/00 ,  H04N13/225 ,  G06K9/00 ,  H04N5/262 ,  H04N5/232 ,  G06T3/40 ,  H04N13/239 ,  H04N13/00

Abstract: Provided is a parallax minimization stitching method and apparatus using control points in an overlapping region. A parallax minimization stitching method may include defining a plurality of control points in an overlapping region of a first image and a second image received from a plurality of cameras, performing a first geometric correction by applying a homography to the control points, defining a plurality of patches based on the control points, and performing a second geometric correction by mapping the patches.

公开(公告)号：US11900561B2

公开(公告)日：2024-02-13

申请号：US17532880

申请日：2021-11-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)

Inventor： Gi Mun Um ,  Hee Kyung Lee ,  Dae-Young Song ,  Donghyeon Cho

IPC: G06T3/40 ,  G06T3/00 ,  G06F18/22 ,  G06F18/213

CPC classification number: G06T3/4038 ,  G06F18/213 ,  G06F18/22 ,  G06T3/0093 ,  G06T3/4046

Abstract: A deep learning-based image stitching method and apparatus are provided. The deep learning-based image stitching method includes receiving a plurality of images including a first image and a second image stitched to the first image, extracting a feature map of the plurality of images, generating a plurality of flow maps indicating movement information of pixels of the plurality of images, based on the feature map, generating a plurality of warping images in which the pixels of the plurality of images are moved, by applying the plurality of flow maps to the plurality of images, respectively, generating a plurality of weight maps for blending the plurality of warping images, based on the feature map, and generating a stitch image in which the first image and the second image are stitched, by blending the plurality of warping images based on the plurality of weight maps.