Patents by Inventor Aleksei Caesare Sebastiani

Aleksei Caesare Sebastiani 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).

  • PRESENTATION ATTACK DETECTION
    Publication number: 20230386249
    Abstract: An apparatus for capturing an image of an object on a platen and including a platen having a surface for receiving the object, wherein the platen is transmissive to an optical wavelength of light, an illumination module configured to illuminate at least a portion of the object with light from an illumination source, and an optical sensing module configured to receive the light from the illumination source after the light interacts with the at least a portion of the object. The light from the illumination source is spatially patterned prior to reaching the object. The illumination module can be configured to create the spatially patterned illumination and/or the platen may include a patterned optical coating creating the spatially patterned illumination. The spatially patterned illumination can include a plurality of discrete areas (e.g., a stepped pattern) of different illumination intensity and/or a gradient of different illumination intensity.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 30, 2023
    Inventors: Daniel Henri Raguin, George William McClurg, Aleksei Caesare Sebastiani, Markus Johannes Schiefele, Gregory Lewis Cannon
  • Presentation attack detection
    Patent number: 11769345
    Abstract: An apparatus for capturing an image of an object on a platen and including a platen having a surface for receiving the object, wherein the platen is transmissive to an optical wavelength of light, an illumination module configured to illuminate at least a portion of the object with light from an illumination source, and an optical sensing module configured to receive the light from the illumination source after the light interacts with the at least a portion of the object. The light from the illumination source is spatially patterned prior to reaching the object. The illumination module can be configured to create the spatially patterned illumination and/or the platen may include a patterned optical coating creating the spatially patterned illumination. The spatially patterned illumination can include a plurality of discrete areas (e.g., a stepped pattern) of different illumination intensity and/or a gradient of different illumination intensity.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: September 26, 2023
    Assignee: HID Global Corporation
    Inventors: Daniel Henri Raguin, George William McClurg, Aleksei Caesare Sebastiani, Markus Johannes Schiefele, Gregory Lewis Cannon
  • PRESENTATION ATTACK DETECTION
    Publication number: 20220207909
    Abstract: An apparatus for capturing an image of an object on a platen and including a platen having a surface for receiving the object, wherein the platen is transmissive to an optical wavelength of light, an illumination module configured to illuminate at least a portion of the object with light from an illumination source, and an optical sensing module configured to receive the light from the illumination source after the light interacts with the at least a portion of the object. The light from the illumination source is spatially patterned prior to reaching the object. The illumination module can be configured to create the spatially patterned illumination and/or the platen may include a patterned optical coating creating the spatially patterned illumination. The spatially patterned illumination can include a plurality of discrete areas (e.g., a stepped pattern) of different illumination intensity and/or a gradient of different illumination intensity.
    Type: Application
    Filed: May 7, 2020
    Publication date: June 30, 2022
    Inventors: Daniel Henri Raguin, George William McClurg, Aleksei Caesare Sebastiani, Markus Johannes Schiefele, Gregory Lewis Cannon