Patents by Inventor Roy Arnulf Helge Nilsen

Roy Arnulf Helge Nilsen 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).

  • Methods and apparatus for reconstructing an image of an object
    Patent number: 6775347
    Abstract: A method for reconstructing an image of an object includes generating a plurality of projection data, helically interpolating the projection data, rebinning the helically interpolated projection data from a fan-beam format to a parallel-beam format, and reconstructing an image of the object using the parallel-beam format projection data.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: August 10, 2004
    Assignee: GE Medical Systems Global Technology Company
    Inventors: Jiang Hsieh, Roy Arnulf Helge Nilsen, Mukta C. Joshi, Sandeep Dutta, Robert Wolfe, John A. Fusco, Ferry Tamtoro
  • Methods and apparatus for reconstructing an image of an object
    Publication number: 20030223533
    Abstract: A method for reconstructing an image of an object includes generating a plurality of projection data, helically interpolating the projection data, rebinning the helically interpolated projection data from a fan-beam format to a parallel-beam format, and reconstructing an image of the object using the parallel-beam format projection data.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Inventors: Jiang Hsieh, Roy Arnulf Helge Nilsen, Mukta C. Joshi, Sandeep Dutta, Robert Wolfe, John A. Fusco, Ferry Tamtoro
  • Scan data correction view weighting of computed tomographic images
    Patent number: 6584165
    Abstract: One aspect of the present invention is a method for reconstructing computed tomographic (CT) images. The method includes generating a plurality of projection data, calculating a plurality of base weights using the projection data for each series of images to be reconstructed, storing the base weights in an external memory, and applying a z-smoothing module to the base weights to determine a plurality of final weights. The view weighting process then includes applying the final weights to the projection data for each image.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: June 24, 2003
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Sharon X. Wang, Roy-Arnulf Helge Nilsen, John A. Fusco