Patents by Inventor NATHANIEL I. MATTER

NATHANIEL I. MATTER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11294996
    Abstract: Disclosed herein are systems and methods for using machine learning for image-based spoof detection. One embodiment takes the form of a method that includes obtaining an input-data set that includes a plurality of images captured of a biometric-authentication subject by a plurality of cameras of a camera system. The method also includes inputting the input-data set into a trained machine-learning module, and processing the input-data set using the machine-learning module to obtain, from the machine-learning module, a spoof-detection result for the biometric-authentication subject. The method also includes outputting the spoof-detection result for the biometric-authentication subject.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: April 5, 2022
    Assignee: ASSA ABLOY AB
    Inventors: Robert Kjell Rowe, Nathaniel I. Matter, Ryan Eric Martin, Horst Arnold Mueller
  • Publication number: 20210110018
    Abstract: Disclosed herein are systems and methods for using machine learning for image-based spoof detection. One embodiment takes the form of a method that includes obtaining an input-data set that includes a plurality of images captured of a biometric-authentication subject by a plurality of cameras of a camera system. The method also includes inputting the input-data set into a trained machine-learning module, and processing the input-data set using the machine-learning module to obtain, from the machine-learning module, a spoof-detection result for the biometric-authentication subject. The method also includes outputting the spoof-detection result for the biometric-authentication subject.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 15, 2021
    Inventors: Robert Kjell Rowe, Nathaniel I. Matter, Ryan Eric Martin, Horst Arnold Mueller
  • Patent number: 10810404
    Abstract: Embodiments relate to bioimpedence-based spoof detection in an optical biometric reader. For example, embodiments operate in context of a biometric reader having a platen integrated with substantially transparent bioimpedance source and receiver electrodes covered by a substantially transparent protective layer. A multi-frequency input signal can be injected from the source electrode into a purported skin site (through the protective layer), so that a response signal is received by the receiver electrode. The response signal is interrogated to formulate a dispersive bioimpedance response of the purported skin site to the input signal over multiple frequencies. A biometric spoof determination can then be made according to the dispersive bioimpedance response. The spoof determination can be used for spoof detection, presence detection, and/or other functions.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: October 20, 2020
    Assignee: HID GLOBAL CORPORATION
    Inventors: Robert K. Rowe, Nathaniel I. Matter
  • Publication number: 20170124374
    Abstract: Embodiments relate to bioimpedence-based spoof detection in an optical biometric reader. For example, embodiments operate in context of a biometric reader having a platen integrated with substantially transparent bioimpedance source and receiver electrodes covered by a substantially transparent protective layer. A multi-frequency input signal can be injected from the source electrode into a purported skin site (through the protective layer), so that a response signal is received by the receiver electrode. The response signal is interrogated to formulate a dispersive bioimpedance response of the purported skin site to the input signal over multiple frequencies. A biometric spoof determination can then be made according to the dispersive bioimpedance response. The spoof determination can be used for spoof detection, presence detection, and/or other functions.
    Type: Application
    Filed: August 24, 2016
    Publication date: May 4, 2017
    Inventors: ROBERT K. ROWE, NATHANIEL I. MATTER