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:
Apr. 14, 2015
Filed:
Jun. 02, 2011
Applicant:
Serge Levesque, Montreal, CA;
Inventor:
Serge Levesque, Montreal, CA;
Assignee:
Ultra Electronics Forensic Technology Inc., Cote-Saint-Luc, Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/18 (2006.01); G06K 9/00 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G06T 7/0073 (2013.01); G06T 2207/10152 (2013.01); G06T 2207/30136 (2013.01);
Abstract
There is described a method and 3D image acquisition system for addressing the specular nature of metallic surfaces in general, and ballistic pieces of evidence in particular, using photometric stereo by identifying and solving a plurality of sets of non-linear equations comprising a diffusive term and a specular term to determine a surface normal vector field N(x,y), and using N(x,y) to determine a 3D topography Z(x,y).