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:
Jan. 11, 2011
Filed:
Nov. 29, 2006
Chang-joon Park, Daejon, KR;
Hong-seok Kim, Seoul, KR;
In-ho Lee, Daejon, KR;
Jae-kwang Lee, Daejon, KR;
Hyun-bin Kim, Daejon, KR;
Chang-Joon Park, Daejon, KR;
Hong-Seok Kim, Seoul, KR;
In-Ho Lee, Daejon, KR;
Jae-Kwang Lee, Daejon, KR;
Hyun-Bin Kim, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A method for estimating three-dimensional positions of human joints includes the steps of: a) marker-free motion capturing a moving figure for obtaining a multiview 2D image of the moving figure, and extracting a 2D feature point corresponding to a bodily end-effector; b) three-dimensionally matching the 2D feature point corresponding to the bodily end-effector, and recovering the 3D coordinates of the bodily end-effector; c) generating a 3D blob of the bodily end-effector, generating a virtual sphere with a radius that is a distance from a center of the 3D blob to a joint, and projecting the virtual sphere onto the obtained multiview 2D image of the moving figure; and d) detecting a coinciding point of a surface of the projected virtual sphere and the multiview 2D image of the moving figure, and estimating a 3D position corresponding to the coinciding point as a 3D position of the joint.