公开(公告)号：US10356394B2

公开(公告)日：2019-07-16

申请号：US15046929

申请日：2016-02-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Hean Kim ,  Hyun Kang ,  Soon-Chul Jung ,  Young-Mi Cha ,  Jin-Sung Choi

IPC: H04N13/239 ,  H04N13/00

Abstract: An apparatus and method for measuring the position of a stereo camera. The apparatus for measuring a position of the camera according to an embodiment includes a feature point extraction unit for extracting feature points from images captured by a first camera and a second camera and generating a first feature point list based on the feature points, a feature point recognition unit for extracting feature points from images captured by the cameras after the cameras have moved, generating a second feature point list based on the feature points, and recognizing actual feature points based on the first feature point list and the second feature point list, and a position variation measurement unit for measuring variation in positions of the cameras based on variation in relative positions of the actual feature points.

公开(公告)号：US09948926B2

公开(公告)日：2018-04-17

申请号：US15073894

申请日：2016-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Kang ,  Jae-Hean Kim ,  Chang-Joon Park ,  Jin-Sung Choi

IPC: H04N5/247 ,  H04N17/00 ,  G03B43/00 ,  G02B17/00 ,  G03B43/02

CPC classification number: H04N17/002 ,  G02B17/004 ,  G03B43/00 ,  G03B43/02 ,  H04N5/247

Abstract: Method and apparatus for calibrating multiple cameras. A first mirror and a second mirror are arranged opposite each other. An object is disposed between the first mirror and the second mirror. Calibration of the multiple cameras is performed using a figure of the object formed on the second mirror via reflection from the first mirror and the second mirror.

公开(公告)号：US09554121B2

公开(公告)日：2017-01-24

申请号：US15000419

申请日：2016-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Kang ,  Jae-Hean Kim ,  Chang-Joon Park ,  Jin-Sung Choi

IPC: H04N1/04 ,  H04N13/02 ,  H04N13/00

CPC classification number: H04N13/254 ,  G01B11/2504 ,  G06T7/521 ,  G06T7/73 ,  G06T2207/10024 ,  G06T2207/30244 ,  H04N13/221 ,  H04N13/246 ,  H04N13/257 ,  H04N13/296 ,  H04N2013/0077

Abstract: A 3D scanning apparatus and method using lighting based on a smart phone. The 3D scanning apparatus includes: an image capturing unit for capturing the image of a 3D object using a camera and a lighting apparatus installed in a terminal; an image processing unit for generating a color-enhanced image corresponding to the light emitted by the lighting apparatus; and a scanning unit for scanning the 3D object in 3D by extracting a scan area from the color-enhanced image based on the light and by extracting position information corresponding to the scan area.

Abstract translation: 一种使用基于智能电话的照明的3D扫描装置和方法。 3D扫描装置包括：图像拍摄单元，用于使用相机和安装在终端中的照明装置捕获3D对象的图像; 图像处理单元，用于生成与由所述照明装置发射的光对应的色彩增强图像; 以及扫描单元，用于通过基于光从颜色增强图像提取扫描区域并通过提取与扫描区域相对应的位置信息来3D扫描3D对象。

公开(公告)号：US10796493B2

公开(公告)日：2020-10-06

申请号：US16447847

申请日：2019-06-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Hean Kim ,  Bon-Ki Koo ,  Chang-Joon Park

IPC: G06T19/00 ,  G06F3/01 ,  G06T7/73

Abstract: Disclosed herein are an apparatus and method for calibrating an augmented-reality image. The apparatus includes a camera unit for capturing an image and measuring 3D information pertaining to the image, an augmented-reality image calibration unit for generating an augmented-reality image using the image and the 3D information and for calibrating the augmented-reality image, and a display unit for displaying the augmented-reality image.

公开(公告)号：US09858684B2

公开(公告)日：2018-01-02

申请号：US14444030

申请日：2014-07-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Hean Kim ,  Chang-Woo Chu ,  Young-Mi Cha ,  Jin-Sung Choi ,  Bon-Ki Koo

IPC: G06K9/00 ,  G06T7/80 ,  H04N13/02 ,  G06T7/521

CPC classification number: G06T7/85 ,  G06T7/521 ,  G06T7/80 ,  G06T2207/10024 ,  G06T2207/10028 ,  H04N13/246 ,  H04N13/254 ,  H04N13/271 ,  H04N2213/003

Abstract: An image processing apparatus and method for calibrating a depth of a depth sensor. The image processing method may include obtaining a depth image of a target object captured by a depth sensor and a color image of the target object captured by a color camera; and calibrating a depth of the depth sensor by calibrating a geometrical relation between a projector and a depth camera, which are included in the depth sensor, based the obtained depth and color images and calculating a correct feature point on an image plane of the depth camera that corresponds to a feature point of an image plane of the projector.