The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2013
Filed:
Aug. 28, 2009
Jong Sung Kim, Daejeon, KR;
Hye-mi Kim, Daejeon, KR;
Jae-hean Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An apparatus for calibrating images between cameras, includes: a detector for detecting dynamic markers from images taken by a motion capture camera and a video camera; a 3D position recovery unit for recovering 3D position data of the dynamic markers obtained by the motion capture camera; a 2D position tracking unit for tracking 2D position data of the dynamic markers obtained by the video camera; a matching unit for matching the 3D position data and the 2D position data of the dynamic markers; and a calibrating unit for converting the 3D position of the dynamic markers on a spatial coordinate system into image coordinates on an image coordinate system of the video camera to calculate intrinsic parameters and extrinsic parameters of the video camera to minimize a difference between coordinates of the 2D position data and the image coordinates.