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:
Jun. 28, 2005
Filed:
Sep. 18, 2001
Yuri A. Ivanov, Cambridge, MA (US);
Alex P. Pentland, Lexington, MA (US);
Christopher R. Wren, Cambridge, MA (US);
Yuri A. Ivanov, Cambridge, MA (US);
Alex P. Pentland, Lexington, MA (US);
Christopher R. Wren, Cambridge, MA (US);
Mitsubishi Electric Research Labs, Inc., Cambridge, MA (US);
Abstract
The location of an object in a physical scene is identified with a stereo camera. A virtual surface is identified in the physical scene, and an approximate disparity set is constructed for the virtual surface. A main and a reference image of the scene are acquired by the stereo camera. The reference image is warped according to the disparity set, and subtracted from the main image to determine a set of depth residual values. Pixels having a substantially non-zero residual are identified with a surface of the object not coincident with the virtual surface.