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. 19, 2020
Filed:
Feb. 21, 2018
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Mudit Agrawal, Bellevue, WA (US);
Akihiro Tsukada, Tokyo, JP;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Apparatus and methods of biometric object spoof detection are configured to receive at least first and second images, including a biometric object, respectively captured at a first and second time in response to a first and second incident light. The first and second incident light is emitted from at least one light source at substantially a same wavelength, but with different sets of illumination characteristics. Further, the apparatus and method are configured to respectively determine a first set and a corresponding second set of reflection intensity features respectively based on at least a part of the first and second images, and to determine a set of reflection intensity difference features based on an intensity difference therebetween. Additionally, the apparatus and methods are configured to classify the biometric object as being a fake object or a real object based on at least one of the reflection intensity difference features.