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:
Nov. 13, 2018
Filed:
Jun. 30, 2016
Synaptics Incorporated, San Jose, CA (US);
Anthony P. Russo, New York, NY (US);
Omar Oreifej, San Jose, CA (US);
Synaptics Incorporated, San Jose, CA (US);
Abstract
Systems and methods for point-based image alignment are disclosed. A method includes: selecting first and second couplets of feature points corresponding to first and second biometric images, respectively, and calculating a rotation-invariant parameter for each of the first and second couplets of feature points; determining that the first couplet matches the second couplet based on a difference between the rotation-invariant parameter for the first couplet of feature points and the rotation-invariant parameter for the second couplet of feature points; determining a candidate transformation operation that aligns the first couplet of feature points to the second couplet of feature points; determining a goodness of fit between a pictorial representation of the first biometric image and a pictorial representation of the second biometric image with the transformation operation applied; and, determining that the candidate transformation aligns the first biometric image to the second biometric image based on the goodness of fit.