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:
May. 05, 2015
Filed:
Feb. 06, 2013
Applicant:
Nanyang Technological University, Singapore, SG;
Inventors:
Justin Dauwels, Singapore, SG;
Jingshan Zhong, Singapore, SG;
Assignee:
Nanyang Technological University, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G02B 27/50 (2006.01); G03B 13/32 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G06T 7/0002 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/20056 (2013.01); G06T 2207/20076 (2013.01); G06T 2207/30024 (2013.01);
Abstract
An intensity image is collected at each of a plurality of locations spaced apart in a propagation direction of a light beam. Information from the intensity images is combined using a Kalman filter which assumes that at least one co-variance matrix has a diagonal form. This leads to considerable reduction in computational complexity. An augmented Kalman filter model (augmented space state model) is used in place of the standard Kalman filter model. The augmented Kalman filter improves the robustness to noise.