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. 25, 2017
Filed:
Sep. 03, 2015
Qualcomm Incorporated, San Diego, CA (US);
Jin Gu, Toronto, CA;
Ming Yu Chen, Santa Clara, CA (US);
Eliza Yingzi Du, Cupertino, CA (US);
Kwokleung Chan, Sunnyvale, CA (US);
Esra Vural, Santa Clara, CA (US);
Saurav Bandyopadhyay, Milpitas, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.