Patents by Inventor Mattias Kuldkepp
Mattias Kuldkepp 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).
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Publication number: 20210350554Abstract: An eye-tracking system configured to: receive a reference-image of an eye of a user, the reference-image being associated with reference-eye-data; receive one or more sample-images of the eye of the user; and, for each of the one or more sample-images: determine a difference between the reference-image and the sample-image to define a corresponding differential-image; and determine eye-data for the sample-image based on the differential-image and the reference-eye-data associated with the reference-image.Type: ApplicationFiled: March 31, 2021Publication date: November 11, 2021Applicant: Tobii ABInventors: David Masko, Mark Ryan, Mattias Kuldkepp
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Patent number: 10789464Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: GrantFiled: April 9, 2019Date of Patent: September 29, 2020Assignee: Tobii ABInventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Publication number: 20200183490Abstract: Circuitry of a gaze/eye tracking system obtains one or more images of a left eye and one or more images a right eye, determines a gaze direction of the left eye based on at least one obtained image of the left eye, determines a gaze direction of the right eye based on at least one obtained image of the right eye, determines a first confidence value based on the one or more obtained images of the left eye, determines a second confidence value based on the one or more obtained images of the right eye, and determines a final gaze direction based at least in part on the first confidence value and the second confidence value. The first and second confidence values represent indications of the reliability of the determined gaze directions of the left eye and the right eye, respectively. Corresponding methods and computer-readable media are also provided.Type: ApplicationFiled: September 11, 2017Publication date: June 11, 2020Applicant: Tobii ABInventors: Andres Klingström, Mattias Kuldkepp, Mårten Skogö
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Patent number: 10614303Abstract: Circuitry of a gaze/eye tracking system obtains one or more images of a left eye and one or more images a right eye, determines a gaze direction of the left eye based on at least one obtained image of the left eye, determines a gaze direction of the right eye based on at least one obtained image of the right eye, determines a first confidence value based on the one or more obtained images of the left eye, determines a second confidence value based on the one or more obtained images of the right eye, and determines a final gaze direction based at least in part on the first confidence value and the second confidence value. The first and second confidence values represent indications of the reliability of the determined gaze directions of the left eye and the right eye, respectively. Corresponding methods and computer-readable media are also provided.Type: GrantFiled: April 3, 2018Date of Patent: April 7, 2020Assignee: Tobii ABInventors: Andreas Klingström, Mattias Kuldkepp, Mårten Skogö
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Patent number: 10572008Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: GrantFiled: December 20, 2017Date of Patent: February 25, 2020Assignee: Tobii ABInventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Publication number: 20190302882Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.Type: ApplicationFiled: December 21, 2018Publication date: October 3, 2019Applicant: Tobii ABInventors: Peter Blixt, Anders Kingback, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
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Patent number: 10372208Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.Type: GrantFiled: November 8, 2017Date of Patent: August 6, 2019Assignee: Tobii ABInventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
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Publication number: 20190236356Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: ApplicationFiled: April 9, 2019Publication date: August 1, 2019Applicant: Tobii ABInventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Patent number: 10282608Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: GrantFiled: April 5, 2017Date of Patent: May 7, 2019Assignee: TOBII ABInventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Publication number: 20190108383Abstract: Circuitry of a gaze/eye tracking system obtains one or more images of a left eye and one or more images a right eye, determines a gaze direction of the left eye based on at least one obtained image of the left eye, determines a gaze direction of the right eye based on at least one obtained image of the right eye, determines a first confidence value based on the one or more obtained images of the left eye, determines a second confidence value based on the one or more obtained images of the right eye, and determines a final gaze direction based at least in part on the first confidence value and the second confidence value. The first and second confidence values represent indications of the reliability of the determined gaze directions of the left eye and the right eye, respectively. Corresponding methods and computer-readable media are also provided.Type: ApplicationFiled: April 3, 2018Publication date: April 11, 2019Applicant: Tobii ABInventors: Andreas Klingström, Mattias Kuldkepp, Mårten Skogö
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Patent number: 10191542Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.Type: GrantFiled: April 10, 2017Date of Patent: January 29, 2019Assignee: Tobii ABInventors: Peter Blixt, Anders Kingback, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
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Publication number: 20180242841Abstract: A subject is illuminated whose movements of at least one eye are to be registered by an eye-tracker for producing resulting data. To this aim, a coherent light source in light producing means produces at least one well-defined light beam. A diffractive optical element is arranged between the coherent light source and an output from the light producing means. The diffractive optical element is configured to direct a light beam towards at least a first designated area estimated to cover the at least one eye of the subject. Image registering means registers light from the at least one light beam having been reflected against the subject. The resulting data is produced in response to these light reflections, which resulting data represents movements of the at least one eye of the subject.Type: ApplicationFiled: January 10, 2018Publication date: August 30, 2018Applicant: Tobii ABInventors: Richard Hainzl, Mattias Kuldkepp, Peter Blixt, Mårten Skogö
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Publication number: 20180143684Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: ApplicationFiled: December 20, 2017Publication date: May 24, 2018Inventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Patent number: 9940518Abstract: Circuitry of a gaze/eye tracking system obtains one or more images of a left eye and one or more images a right eye, determines a gaze direction of the left eye based on at least one obtained image of the left eye, determines a gaze direction of the right eye based on at least one obtained image of the right eye, determines a first confidence value based on the one or more obtained images of the left eye, determines a second confidence value based on the one or more obtained images of the right eye, and determines a final gaze direction based at least in part on the first confidence value and the second confidence value. The first and second confidence values represent indications of the reliability of the determined gaze directions of the left eye and the right eye, respectively. Corresponding methods and computer-readable media are also provided.Type: GrantFiled: September 11, 2017Date of Patent: April 10, 2018Assignee: Tobii ABInventors: Andreas Klingström, Mattias Kuldkepp, Mårten Skogö
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Patent number: 9924864Abstract: A subject (180) is illuminated whose movements of at least one eye are to be registered by an eye-tracker for producing resulting data (DEYE). To this aim, a coherent light source in light producing means (140) produces at least one well-defined light beam (L1, L2). A diffractive optical element is arranged between the coherent light source and an output from the light producing means (140). The diffractive optical element is configured to direct a light beam (L1) towards at least a first designated area (A1) estimated to cover the at least one eye of the subject (180). Image registering means (150) registers light from the at least one light beam (L1, L2) having been reflected against the subject (180). The resulting data (DEYE) are produced in response to these light reflections, which resulting data (DEYE) represent movements of the at least one eye of the subject (180).Type: GrantFiled: June 14, 2012Date of Patent: March 27, 2018Assignee: Tobii ABInventors: Richard Hainzl, Mattias Kuldkepp, Peter Blixt, Mårten Skogö
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Publication number: 20180067551Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.Type: ApplicationFiled: November 8, 2017Publication date: March 8, 2018Inventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
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Patent number: 9886630Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: GrantFiled: December 28, 2015Date of Patent: February 6, 2018Assignee: Tobii ABInventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
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Patent number: 9846481Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.Type: GrantFiled: October 27, 2016Date of Patent: December 19, 2017Assignee: TOBII ABInventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
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Publication number: 20170220107Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.Type: ApplicationFiled: April 10, 2017Publication date: August 3, 2017Inventors: Peter Blixt, Anders Kingback, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
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Publication number: 20170206410Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.Type: ApplicationFiled: April 5, 2017Publication date: July 20, 2017Inventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy