Patents by Inventor Vassilis George Zarifis

Vassilis George Zarifis 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).

  • Fast phase diversity wavefront correction using a neural network
    Patent number: 6787747
    Abstract: A phase diversity wavefront correction system for use in a multiple aperture optical imaging system forms an in-focus image as a composite, focused image from the multiple apertures of the system and also forms an additional image which is deliberately made out of focus to a known extent. Taken together, the two images are processed to create one or more metrics, such as the power metric and sharpness metric. Neural networks are provided, each having an output corresponding to a parameter of an aperture of the imaging system, such as a piston position (axial displacement) or tip/tilt (angular displacement) of one telescope with respect to the others in the system.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: September 7, 2004
    Assignee: Lockheed Martin Corporation
    Inventors: Donald Francis Specht, Richard Lee Kendrick, Vassilis George Zarifis
  • Fast phase diversity wavefront correction using a neural network
    Publication number: 20040056174
    Abstract: A phase diversity wavefront correction system for use in a multiple aperture optical imaging system forms an in-focus image as a composite, focused image from the multiple apertures of the system and also forms an additional image which is deliberately made out of focus to a known extent. Taken together, the two images are processed to create one or more metrics, such as the power metric and sharpness metric. Neural networks are provided, each having an output corresponding to a parameter of an aperture of the imaging system, such as a piston position (axial displacement) or tip/tilt (angular displacement) of one telescope with respect to the others in the system.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 25, 2004
    Inventors: Donald Francis Specht, Richard Lee Kendrick, Vassilis George Zarifis