Patents by Inventor Gerald W. Plunk

Gerald W. Plunk 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: 5259037
    Abstract: A method for converting forward looking video or motion picture imagery into a downlooking database suitable for use in an image generation system to generate realtime perspective images for simulation purposes. A digital video camera photographs a sequence of forward looking frames along a course including several known ground control points. Digital data from the digital video camera is read into a computer. The initial position and the position of ground control points is read into the computer. A Kalman filter technique provides continuous estimates of exact camera location in x, y, z coordinates, and in roll, pitch and yaw orientation. A correlation filter determines corresponding pixels in adjacent frames. Range from the camera to the pixel surfaces is calculated to determine the x, y and z position thereof. A modified mathematical stereophotogrammetry technique is used. Radiometric data and elevation data is extracted from the lower portion of the frame for each pixel.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: November 2, 1993
    Assignee: Hughes Training, Inc.
    Inventor: Gerald W. Plunk