Patents by Inventor Steffen G. Wiesner

Steffen G. Wiesner 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).

  • Method and system for error compensation
    Patent number: 8000435
    Abstract: A method includes generating a plurality of scatter distributions based on geometric models having different object to detector distances, determining an imaged object to detector distance, and identifying a scatter distribution of the plurality of scatter distributions having a object to detector distance that corresponds to the imaged object to detector distance. The method also includes employing the identified scatter distribution to scatter correct projection data corresponding to the imaged object. Another method includes generating an estimate of wedge scatter by propagating a predetermined wedge scatter profile through an intermediate reconstruction of an object; and employing the estimate to wedge scatter correct the projection data.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 16, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Matthias Bertram, Jens Wiegert, Steffen G. Wiesner
  • METHOD AND SYSTEM FOR ERROR COMPENSATION
    Publication number: 20100119139
    Abstract: A method includes generating a plurality of scatter distributions based on geometric models having different object to detector distances, determining an imaged object to detector distance, and identifying a scatter distribution of the plurality of scatter distributions having a object to detector distance that corresponds to the imaged object to detector distance. The method also includes employing the identified scatter distribution to scatter correct projection data corresponding to the imaged object. Another method includes generating an estimate of wedge scatter by propagating a predetermined wedge scatter profile through an intermediate reconstruction of an object; and employing the estimate to wedge scatter correct the projection data.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 13, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.
    Inventors: Matthias Bertram, Jens Wiegert, Steffen G. Wiesner