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：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.