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:
Feb. 03, 2015
Filed:
Aug. 08, 2011
Kai Liu, Wuxi, CN;
Yongchang Wang, Milpitas, CA (US);
Daniel L. Lau, Lexington, KY (US);
Laurence G. Hassebrook, Lexington, KY (US);
Kai Liu, Wuxi, CN;
Yongchang Wang, Milpitas, CA (US);
Daniel L. Lau, Lexington, KY (US);
Laurence G. Hassebrook, Lexington, KY (US);
University of Kentucky Research Foundation, Lexington, KY (US);
Abstract
A computer-implemented process, system, and computer-readable storage medium having stored thereon, program code and instructions for 3-D triangulation-based image acquisition of a contoured surface/object-of-interest under observation by at least one camera, by projecting onto the surface-of-interest a multi-frequency pattern comprising a plurality of pixels representing at least a first and second superimposed sinusoid projected simultaneously, each of the sinusoids represented by the pixels having a unique temporal frequency and each of the pixels projected to satisfy where Iis the intensity of a pixel in the projector for nprojected image in a particular instant in time; K is an integer representing the number of component sinusoids (e.g., K=2 for a dual-frequency sinusoid pattern, K=3 for a triple-frequency sinusoid, each component sinusoid having a distinct temporal frequency, where K is ≦(N+1)/2.