Patents by Inventor Martin Hedlund

Martin Hedlund 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: 11273380
    Abstract: A system and method for preventing cheating in a video game environment by obfuscating game variables in memory.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 15, 2022
    Assignee: TAKE-TWO INTERACTIVE SOFTWARE, INC.
    Inventors: Kevin Feeney, Amir Soofi, Martin Hedlund
  • Patent number: 9918701
    Abstract: The present invention relates to method and system for automatic control of image quality in imaging of an object using, for example, an ultrasound system. The method comprises transmitting image generating signals into the object using selected system parameter sets of the imaging system. The imaging system has a number of different system parameter sets based on an image ranking measure reflecting a subjective expert opinion of a pre-defined set of images. The captured images are analyzed with respect to at least one image quality feature to determine an image quality metric for each image. The respective image quality metric for each image are analyzed to identify an image associated with a highest image quality metric and the system parameter set used for generating the image associated with the highest image quality metric can be selected as system parameter set for imaging of the object.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 20, 2018
    Assignee: CONTEXTVISION AB
    Inventors: Martin Hedlund, Gunmar Farnebäck, Martin Kempe, Sharok Kimiaei, Peter Kövamees
  • Patent number: 9743911
    Abstract: The present invention relates to method and system for automatic control of image quality in imaging of an object using, for example, an ultrasound system. The method comprises transmitting image generating signals into the object using selected system parameter sets of the imaging system. The imaging system has a number of different system parameter sets based on an image ranking measure reflecting a subjective expert opinion of a pre-defined set of images. The captured images are analyzed with respect to at least one image quality feature to determine an image quality metric for each image. The respective image quality metric for each image are analyzed to identify an image associated with a highest image quality metric and the system parameter set used for generating the image associated with the highest image quality metric can be selected as system parameter set for imaging of the object.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: August 29, 2017
    Assignee: CONTEXTVISION AB
    Inventors: Martin Hedlund, Gunnar Farnebäck, Martin Kempe, Sharok Kimiaei, Peter Kövamees
  • Publication number: 20170143312
    Abstract: The present invention relates to method and system for automatic control of image quality in imaging, of an object using, for example, an ultrasound system. The method comprises transmitting image generating signals into the object using selected system parameter sets of the imaging system. The imaging system has a number of different system parameter sets based on an image ranking measure reflecting a subjective expert opinion of a pre-defined set of images. The captured images are analyzed with respect to at least one image quality feature to determine an image quality metric for each image. The respective image quality metric for each image are analyzed to identify an image associated with a highest image quality metric and the system parameter set used for generating the image associated with the highest image quality metric can be selected as system parameter set for imaging of the object.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 25, 2017
    Applicant: ContextVision AB
    Inventors: Martin HEDLUND, Gunnar FARNEBÄCK, Martin KEMPE, Sharok KIMIAEI, Peter KÖVAMEES
  • Publication number: 20160058426
    Abstract: The present invention relates to method and system for automatic control of image quality in imaging of an object using, for example, an ultrasound system. The method comprises transmitting image generating signals into the object using selected system parameter sets of the imaging system. The imaging system has a number of different system parameter sets based on an image ranking measure reflecting a subjective expert opinion of a pre-defined set of images. The captured images are analyzed with respect to at least one image quality feature to determine an image quality metric for each image. The respective image quality metric for each image are analyzed to identify an image associated with a highest image quality metric and the system parameter set used for generating the image associated with the highest image quality metric can be selected as system parameter set for imaging of the object.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Martin HEDLUND, Gunnar FARNEBÄCK, Martin KEMPE, Sharok KIMIAEI, Peter KÖVAMEES
  • Patent number: 7809178
    Abstract: A method is disclosed for enhancing a CT image composed of a plurality of elements, each having an intensity value indicative of a tissue type. The method comprises receiving (101) a first CT image, providing, by enhancement processing (103) based on said first CT image, a plurality of copies of said first CT image, and combining (104) said copies with said first CT image, whereby an enhanced CT image is provided. The combining is based on a classification with respect to intensity values of regions within said first and said copies of said first CT image. The enhancement processing (103) is performed with respect to predetermined intensity value ranges. The method may be implemented as a computer program product or as a device.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: October 5, 2010
    Assignee: Contextvision AB
    Inventors: Hagen Spies, Katarina T. Flood, Tomas Loock, Martin Hedlund
  • Publication number: 20070280519
    Abstract: A method is disclosed for enhancing a CT image composed of a plurality of elements, each having an intensity value indicative of a tissue type. The method comprises receiving (101) a first CT image, providing, by enhancement processing (103) based on said first CT image, a plurality of copies of said first CT image, and combining (104) said copies with said first CT image, whereby an enhanced CT image is provided. The combining is based on a classification with respect to intensity values of regions within said first and said copies of said first CT image. The enhancement processing (103) is performed with respect to predetermined intensity value ranges. The method may be implemented as a computer program product or as a device.
    Type: Application
    Filed: March 18, 2005
    Publication date: December 6, 2007
    Inventors: Hagen Spies, Katarina Flood, Tomas Loock, Martin Hedlund
  • Patent number: 4747152
    Abstract: The invention concerns an apparatus for determining the degree of consistency of a feature in a region of an image that is divided into discrete picture elements, the feature being represented by vector valued signals, one for each picture element, the vector direction describing the feature class and the vector magnitude describing the certainty in the feature assertion. The invention is characterized by a first unit (4) for weighted summation of the vectors in the region after predetermined rotations thereof, a second unit (5) for weighted summation of the magnitudes of the vectors in the region, and a norming unit (6) for norming the output signal from the first summation unit with respect to the sum of the output signal from the second summation unit and a reference signal (FIG. 2).
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: May 24, 1988
    Assignee: Context Vision AB
    Inventors: Hans Knutsson, Martin Hedlund, Gosta Granlund