Patents by Inventor Gunnar Troili

Gunnar Troili 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: 9791912
    Abstract: A personal computer system comprises a visual display, an imaging device adapted to provide eye-tracking data by imaging at least one eye of a viewer of the visual display, and identifying means for recognizing the viewer with reference to one of a plurality of predefined personal profiles. The personal computer system further comprises an eye-tracking processor for processing the eye-tracking data. According to the invention, the eye-tracking processor is selectively operable in one of a plurality of personalized active sub-modes associated with said personal profiles. The sub-modes may differ with regard to eye-tracking related or power-management related settings. Further, the identifying means may sense an identified viewer's actual viewing condition (e.g., use of viewing aids or wearing of garments), wherein the imaging device is further operable in a sub profile mode associated with the determined actual viewing condition.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: October 17, 2017
    Assignee: Tobii AB
    Inventors: John Mikael Elvesjö, Anders Kingbäck, Gunnar Troili, Mårten Skogö, Henrik Eskilsson, Peter Blixt
  • Publication number: 20170249509
    Abstract: A method includes obtaining an image of an eye in a bright-pupil imaging mode in which a retinal retro-reflection complements the image of the eye in the bright-pupil mode, and obtaining an image of the eye in a dark-pupil imaging mode in which a corneo-scleral retro-reflection complements the image of the eye in the dark-pupil mode. One of the bright-pupil imaging mode and the dark-pupil imaging mode is selected based on quality of obtained images.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Applicant: TOBII AB
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingbäck, John Mikael Elvesjö, Mårten Skogö
  • Publication number: 20170224211
    Abstract: An eye tracker comprising at least one illuminator for illuminating an eye, at least two cameras for imaging the eye and a controller is disclosed. The configuration of the reference illuminator(s) and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. On the one hand, the controller is adapted to select one of the cameras to be active with the aim of maximising an image quality metric and avoiding obscuring objects. On the other hand, the eye tracker is operable in a dual-camera mode to improve accuracy. The invention further provides a method and computer-program product for selecting a combination of an active reference illuminator from a plurality of reference illuminators and an active camera from a plurality of cameras.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 10, 2017
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingbäck, John Mikael Elvesjö, Mårten Skogö
  • Patent number: 9649029
    Abstract: A method includes obtaining an image of an eye in a bright-pupil imaging mode in which a retinal retro-reflection complements the image of the eye in the bright-pupil mode, and obtaining an image of the eye in a dark-pupil imaging mode in which a cornea-scleral retro-reflection complements the image of the eye in the dark-pupil mode. One of the bright-pupil imaging mode and the dark-pupil imaging mode is selected based on quality of obtained images.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 16, 2017
    Assignee: Tobii AB
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingbäck, John Mikael Elvesjö, Mårten Skogö
  • Patent number: 9147248
    Abstract: A gaze tracking device is calibrated to a display unit by presenting graphical guide objects on an active area thereof, which designate distinctive features reflecting how the device may be positioned n a first side of a frame of the display unit. User commands move the objects on the display's active area in a first direction parallel to the first side of the frame. A position value designating an actual position for the gaze tracking device on the first side of the frame is assigned based on a current position of the graphical guide objects on the active area. An offset value is calculated based on the assigned position value and a known measure of the active area. The offset value represents a distance in the first direction between a well-defined point of the gaze tracking device and a well-defined point of the first side.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 29, 2015
    Assignee: TOBII TECHNOLOGY AB
    Inventors: Anders Kaplan, Gunnar Troili, John Elvesjo
  • Publication number: 20150092163
    Abstract: An eye tracker comprising at least one illuminator for illuminating an eye, at least two cameras for imaging the eye and a controller is disclosed. The configuration of the reference illuminator(s) and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. On the one hand, the controller is adapted to select one of the cameras to be active with the aim of maximising an image quality metric and avoiding obscuring objects. On the other hand, the eye tracker is operable in a dual-camera mode to improve accuracy. The invention further provides a method and computer-program product for selecting a combination of an active reference illuminator from a plurality of reference illuminators and an active camera from a plurality of cameras.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingbäck, John Mikael Elvesjö, Mårten Skogö
  • Patent number: 8944600
    Abstract: An eye tracker includes at least one illuminator for illuminating an eye, at least two cameras for imaging the eye and a controller. The configuration of the reference illuminator and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. The controller selects one of the cameras to be active to increase an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 3, 2015
    Assignee: Tobii Technology AB
    Inventors: Peter Blixt, Gunnar Troili, Anders Kingback, John Mikael Elvesjö, Mårten Skogö
  • Publication number: 20140313129
    Abstract: A personal computer system comprises a visual display, an imaging device adapted to provide eye-tracking data by imaging at least one eye of a viewer of the visual display, and identifying means for recognizing the viewer with reference to one of a plurality of predefined personal profiles. The personal computer system further comprises an eye-tracking processor for processing the eye-tracking data. According to the invention, the eye-tracking processor is selectively operable in one of a plurality of personalized active sub-modes associated with said personal profiles. The sub-modes may differ with regard to eye-tracking related or power-management related settings. Further, the identifying means may sense an identified viewer's actual viewing condition (e.g., use of viewing aids or wearing of garments), wherein the imaging device is further operable in a sub profile mode associated with the determined actual viewing condition.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 23, 2014
    Inventors: John Mikael Elvesjö, Anders Kingbäck, Gunnar Troili, Mårten Skogö, Henrik Eskilsson, Peter Blixt
  • Publication number: 20140180619
    Abstract: A gaze tracking device is calibrated to a display unit by presenting graphical guide objects on an active area thereof, which designate distinctive features reflecting how the device may be positioned n a first side of a frame of the display unit. User commands move the objects on the display's active area in a first direction parallel to the first side of the frame. A position value designating an actual position for the gaze tracking device on the first side of the frame is assigned based on a current position of the graphical guide objects on the active area. An offset value is calculated based on the assigned position value and a known measure of the active area. The offset value represents a distance in the first direction between a well-defined point of the gaze tracking device and a well-defined point of the first side.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: TOBII TECHNOLOGY AB
    Inventors: Anders Kaplan, Gunnar Troili, John Elvesjo
  • Patent number: 8339446
    Abstract: An eye tracker includes at least one illuminator for illuminating an eye, at least two cameras for imaging the eye, and a controller. The configuration of the reference illuminator(s) and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. The controller is adapted to select one of the cameras to be active to maximize an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy. A method and computer-program product for selecting a combination of an active reference illuminator from a number of reference illuminators, and an active camera from a plurality of cameras are provided.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: December 25, 2012
    Assignee: Tobii Technology AB
    Inventors: Peter Blixt, Anders Hoglund, Gunnar Troili, John Elvesjö, Mårten Skogö
  • Publication number: 20100328444
    Abstract: An eye tracker includes at least one illuminator for illuminating an eye, at least two cameras for imaging the eye, and a controller. The configuration of the reference illuminator(s) and cameras is such that, at least one camera is coaxial with a reference illuminator and at least one camera is non-coaxial with a reference illuminator. The controller is adapted to select one of the cameras to be active to maximize an image quality metric and avoid obscuring objects. The eye tracker is operable in a dual-camera mode to improve accuracy. A method and computer-program product for selecting a combination of an active reference illuminator from a number of reference illuminators, and an active camera from a plurality of cameras are provided.
    Type: Application
    Filed: April 1, 2010
    Publication date: December 30, 2010
    Applicant: Tobii Technology AB
    Inventors: PETER BLIXT, Anders Hoglund, Gunnar Troili, John Elvesjö, Mårten Skogö