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:
Oct. 30, 2012
Filed:
Jun. 24, 2010
Paul E. Debevec, Marina del Rey, CA (US);
Abhijeet Ghosh, Playa del Rey, CA (US);
Pieter Peers, Los Angeles, CA (US);
Graham Fyffe, Los Angeles, CA (US);
Paul E. Debevec, Marina del Rey, CA (US);
Abhijeet Ghosh, Playa del Rey, CA (US);
Pieter Peers, Los Angeles, CA (US);
Graham Fyffe, Los Angeles, CA (US);
University of Southern California, Los Angeles, CA (US);
Abstract
A system for estimating the specular roughness of points on a surface of an object may include a lighting system, an image capture system and a computer processing system. The lighting system may be configured to illuminate the surface of the object at different times with different illumination patterns. Each illumination pattern may illuminate the surface from a plurality of different directions and form an intensity gradient having an order of no more than two. The image capture system may be configured to capture an image of the surface of the object when illuminated by each of the different illumination patterns at each of the different times. The computer processing system may be configured to compute the specular roughness of each point on the surface of the object based on the images captured by the image capture system.