Patents by Inventor Bruce C. Deal

Bruce C. Deal 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).

  • Image spot detector using Haar coefficients
    Patent number: 4242733
    Abstract: A machine for detecting image spots in two-dimensional images. The machine transforms two-dimensional images by means of the Haar transform into the two-dimensional Haar transform domain and calculates a "double difference" between each Haar transform coefficient and the adjacent coefficients in the immediately preceding rows and columns. For certain of these "double differences" which are sensitive to spots, the invention outputs a spot indication and address whenever the absolute magnitude of the "double difference" exceeds a threshold.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: December 30, 1980
    Assignee: Northrop Corporation
    Inventor: Bruce C. Deal
  • Image corner detector using Haar coefficients
    Patent number: 4242734
    Abstract: A machine for detecting image corners in two-dimensional images. The machine transforms two-dimensional images by means of the Haar transform into the two-dimensional Haar transform domain. Certain of the Haar transform coefficients, which are sensitive to corners, are compared to a threshold and an output indicative of a corner is generated whenever a corner sensitive transform coefficient exceeds the threshold.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: December 30, 1980
    Assignee: Northrop Corporation
    Inventor: Bruce C. Deal