Patents by Inventor Marcus Hennix

Marcus Hennix 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: 11465000
    Abstract: The present invention relates to the field of radiation therapy and methods, software and systems for treatment planning. A target volume of a region of a patient to be treated during a treatment of a patient in a radiation therapy unit is obtained. A first isocenter location procedure is performed including inter alia evaluating potential isocenter locations along normal directions of the surface and respective isodistance surfaces in respective starting voxels in a direction inwards from the surface, and a second isocenter location procedure is performed including inter alia identifying a median axis of the target volume or center point of the target volume, placing isocenters at locations along the median axis, and placing isocenters in the target volume based on a distance to existing isocenters and to the target surface.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: October 11, 2022
    Inventors: Håkan Nordström, Joakim Wang Erlandsson, Fredrik Lundqvist, Marcus Hennix, Björn Somell
  • Publication number: 20210268314
    Abstract: The present invention relates to the field of radiation therapy and methods, software and systems for treatment planning. A target volume of a region of a patient to be treated during a treatment of a patient in a radiation therapy unit is obtained. A first Isocenter location procedure is performed including inter alia evaluating potential isocenter locations along normal directions of the surface and respective isodistance surfaces in respective starting voxel in a direction inwards from the surface, and a second isocenter location procedure is performed including inter alia identifying a median axis of the target volume or center point of the target volume, placing isocenters at locations along the median axis, placing isocenters in the target volume based on a distance to existing isocenters and to the target surface.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 2, 2021
    Applicant: Elekta Instrument AB
    Inventors: Håkan Nordström, Joakim Wang Erlandsson, Fredrik Lundqvist, Marcus Hennix, Björn Somell
  • Patent number: 10497113
    Abstract: Embodiments disclose a method performed by at least one processor for processing a plurality of x-ray projection images of a subject, the method comprising a plurality of operations including reconstructing the projection images to yield a volume reconstruction; segmenting the reconstructed volume by assigning a material type to each voxel; estimating a first set of scatter images corresponding to a subset of the projection images by calculating probabilistic predictions of interactions of x-rays with the subject and applying a low pass spatial filter to the scatter images; estimating a second set of scatter images corresponding to projection images not included in the subset, based on the first set of scatter images; and subtracting, for each projection image, the corresponding scatter image to yield a corrected projection image.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 3, 2019
    Assignees: Elekta AB (publ), University Health Network
    Inventors: Marcus Hennix, Hakan Nordstrom, Markus Eriksson, Jonas Adler, David Jaffray, Gregory Bootsma, Frank Verhaegen, Bjorn Nutti
  • Publication number: 20160314584
    Abstract: Embodiments disclose a method performed by at least one processor for processing a plurality of x-ray projection images of a subject, the method comprising a plurality of operations including reconstructing the projection images to yield a volume reconstruction; segmenting the reconstructed volume by assigning a material type to each voxel; estimating a first set of scatter images corresponding to a subset of the projection images by calculating probabilistic predictions of interactions of x-rays with the subject and applying a low pass spatial filter to the scatter images; estimating a second set of scatter images corresponding to projection images not included in the subset, based on the first set of scatter images; and subtracting, for each projection image, the corresponding scatter image to yield a corrected projection image.
    Type: Application
    Filed: December 18, 2014
    Publication date: October 27, 2016
    Applicants: Elekta AB (publ), University Health Network
    Inventors: Marcus HENNIX, Hakan NORDSTROM, Markus Eriksson, Jonas ADLER, David JAFFRAY, Gregory BOOTSMA, Frank VERHAEGEN, Bjorn NUTTI
  • Patent number: 7616204
    Abstract: Disclosed is a method of simulating a dynamic object comprising a plurality of vertices. The method comprises defining a current position and a current velocity for a vertex “v” among the plurality of vertices, generating an estimated next position for vertex “v” based on the current position and current velocity, updating the estimated next position based on a plurality of constraints, and after updating the estimated next position, computing a next position and a next velocity for vertex “v” based on the current position and estimated next position.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: November 10, 2009
    Assignee: NVIDIA Corporation
    Inventors: Matthias Müller, Bruno Heidelberger, Marcus Hennix
  • Publication number: 20070085851
    Abstract: Disclosed is a method of simulating a dynamic object comprising a plurality of vertices. The method comprises defining a current position and a current velocity for a vertex “V” among the plurality of vertices, generating an estimated next position for vertex “v” based on the current position and current velocity, updating the estimated next position based on a plurality of constraints, and after updating the estimated next position, computing a next position and a next velocity for vertex “v” based on the current position and estimated next position.
    Type: Application
    Filed: March 7, 2006
    Publication date: April 19, 2007
    Inventors: Matthias Muller, Bruno Heidelberger, Marcus Hennix