Patents by Inventor Rudolf Freytag

Rudolf Freytag 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 apparatus and computer program product for determining an abort criterion during acquisition of 2D images of a 3D subject
    Patent number: 6934352
    Abstract: A 3-D subject is irradiated by an x-ray source at a number of source positions relative to the 3-D subject. A 2-D image of the irradiated subject is recorded by an x-ray detector at a number of corresponding detector positions relative to the subject. An evaluation unit, using the source and the detector positions, automatically determines whether a 3-D reconstruction of the subject is possible. As soon as this is the case, the abort criterion for recording images of the subject is fulfilled, so no further images or data are acquired.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: August 23, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rudolf Freytag, Joachim Hornegger
  • Method and apparatus and computer program product for determining an abort criterion during acquisition of 2D images of a 3D subject
    Publication number: 20040066891
    Abstract: A 3-D subject is irradiated by an x-ray source at a number of source positions relative to the 3-D subject. A 2-D image of the irradiated subject is recorded by an x-ray detector at a number of corresponding detector positions relative to the subject. An evaluation unit, using the source and the detector positions, automatically determines whether a 3-D reconstruction of the subject is possible. As soon as this is the case, the abort criterion for recording images of the subject is fulfilled, so no further images or data are acquired.
    Type: Application
    Filed: August 14, 2003
    Publication date: April 8, 2004
    Applicant: Siemens Aktiengesellschaft
    Inventors: Rudolf Freytag, Joachim Hornegger