公开(公告)号：US11796802B2

公开(公告)日：2023-10-24

申请号：US17307730

申请日：2021-05-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Cheol Kim ,  Joon Soo Kim ,  Gwang Soon Lee

IPC: G02B27/00 ,  G06F3/01 ,  G06T7/73 ,  G06T7/246 ,  G02B27/01 ,  H04N23/56 ,  G06V10/94 ,  G06V40/18

CPC classification number: G02B27/0093 ,  G02B27/0172 ,  G02B27/0179 ,  G06F3/013 ,  G06T7/246 ,  G06T7/73 ,  G06V10/94 ,  G06V40/193 ,  H04N23/56 ,  G02B2027/0138 ,  G02B2027/0187 ,  G06T2207/30201 ,  G06T2207/30204

Abstract: Disclosed herein a device tracking gaze and method therefor. The device includes: an image acquisition unit configured to obtain an eyeball image; a pupil detection unit configured to detect a center of pupil by using the eyeball image; a virtual corneal reflection light position generator configured to process the eyeball image so that a virtual corneal reflection light is located at a predetermined point in the eyeball image; and a PCVR vector generator configured to generate a pupil center virtual reflection vector (PCVR vector) based on a position of the pupil center and a position of the virtual corneal reflection light.

公开(公告)号：US11354854B2

公开(公告)日：2022-06-07

申请号：US17171466

申请日：2021-02-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Cheol Kim ,  Hyuk Min Kwon ,  Jeong Il Seo ,  Sang Woo Ahn ,  Seung Jun Yang

IPC: G09G5/00 ,  G06T17/00 ,  G06F17/18

Abstract: Disclosed herein a method of removing a point cloud outlier and an apparatus implementing the method. The method includes: arranging a point cloud obtained from a laser scanner along at least a first direction; selecting, neighboring first-axis points, between which a separation degree satisfies an inspection start threshold condition, as a first leading-side representative point and a first trailing-side representative point; selecting a first leading-side outlier candidate and a first trailing-side outlier candidate based on a first leading-side separation degree and a first trailing-side separation degree; and determining the first leading-side outlier candidate and the first trailing-side outlier candidate as a first outlier point, when the number of the outlier candidates satisfies an allowable threshold condition.

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.