Patents by Inventor Daniel Johansson Tornéus
Daniel Johansson Tornéus 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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Patent number: 11675428Abstract: A system and a method for determining a gaze direction of a user viewing a scene is provided. The system comprises a camera for obtaining an image of at least one of the user's eyes, a depth information detection device for obtaining depth data related to the image, and a processing unit. The processing unit is configured to define a surface at a predetermined position relative to the user's eye based on the depth data, obtain a normalized image by projecting the image onto the surface and determine a normalized gaze direction based on the normalized image. The processing unit is further configured to determine a gaze direction based on the normalized gaze direction and the depth data.Type: GrantFiled: March 29, 2018Date of Patent: June 13, 2023Assignee: Tobii ABInventors: Oscar Danielsson, Daniel Johansson Torneus
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Publication number: 20230105302Abstract: An eye tracking system comprises a controller. The controller comprises an optical axis detector and a gaze estimation module. The controller is configured to receive, using the optical axis detector, eye measurement data associated with the eye and determine, using the optical axis detector, an optical axis of the eye from the eye measurement data. The controller is also configured to select, using the gaze estimation model, one of a plurality of eye models based on a direction of the optical axis and to determine, using the gaze estimation module, a gaze vector of the eye by applying the selected eye model to the eye measurement data.Type: ApplicationFiled: September 29, 2022Publication date: April 6, 2023Inventor: Daniel Johansson Tornéus
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Publication number: 20220261079Abstract: Techniques for controlling light sources used in eye tracking are described. In an example, an eye tracking system generates a first image and a second image showing at least a portion of the user eye illuminated by a predetermined set of illuminators of the eye tracking system. The eye tracking system determines a first position of a glint in the first image and a second position of the glint in the second image. Each of the first position and the second position is relative to a pupil edge. The eye tracking system predicts a third position of the glint relative to the pupil edge based on the first position and the second position. Further, the eye tracking system determines, from the predetermined set, an illuminator that corresponds to the glint and determines, based on the third position, whether to power off the illuminator to generate a third image of at least the portion of the user eye.Type: ApplicationFiled: May 9, 2022Publication date: August 18, 2022Applicant: Tobii ABInventors: Daniel Johansson Tornéus, Andreas Klingstrom, Martin Skarback
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Patent number: 11353952Abstract: Techniques for controlling light sources used in eye tracking are described. In an example, an eye tracking system generates a first image and a second image showing at least a portion of the user eye illuminated by a predetermined set of illuminators of the eye tracking system. The eye tracking system determines a first position of a glint in the first image and a second position of the glint in the second image. Each of the first position and the second position is relative to a pupil edge. The eye tracking system predicts a third position of the glint relative to the pupil edge based on the first position and the second position. Further, the eye tracking system determines, from the predetermined set, an illuminator that corresponds to the glint and determines, based on the third position, whether to power off the illuminator to generate a third image of at least the portion of the user eye.Type: GrantFiled: November 26, 2018Date of Patent: June 7, 2022Assignee: Tobii ABInventors: Daniel Johansson Tornéus, Andreas Klingström, Martin Skärbäck
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Publication number: 20220129067Abstract: A system and a method for determining a gaze direction of a user viewing a scene is provided. The system comprises a camera for obtaining an image of at least one of the user's eyes, a depth information detection device for obtaining depth data related to the image, and a processing unit. The processing unit is configured to define a surface at a predetermined position relative to the user's eye based on the depth data, obtain a normalized image by projecting the image onto the surface and determine a normalized gaze direction based on the normalized image. The processing unit is further configured to determine a gaze direction based on the normalized gaze direction and the depth data.Type: ApplicationFiled: March 29, 2018Publication date: April 28, 2022Applicant: Tobii ABInventors: Oscar Danielsson, Daniel Johansson Torneus
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Publication number: 20200166994Abstract: Techniques for controlling light sources used in eye tracking are described. In an example, an eye tracking system generates a first image and a second image showing at least a portion of the user eye illuminated by a predetermined set of illuminators of the eye tracking system. The eye tracking system determines a first position of a glint in the first image and a second position of the glint in the second image. Each of the first position and the second position is relative to a pupil edge. The eye tracking system predicts a third position of the glint relative to the pupil edge based on the first position and the second position. Further, the eye tracking system determines, from the predetermined set, an illuminator that corresponds to the glint and determines, based on the third position, whether to power off the illuminator to generate a third image of at least the portion of the user eye.Type: ApplicationFiled: November 26, 2018Publication date: May 28, 2020Applicant: Tobii ABInventors: Daniel Johansson Tornéus, Andreas Klingström, Martin Skärbäck
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Patent number: 10635169Abstract: A system for determining a gaze direction of a user is disclosed. The system may include a first illuminator, a first profile sensor, and at least one processor. The first illuminator may be configured to illuminate an eye of a user. The first profile sensor may be configured to detect light reflected by the eye of the user. The processor(s) may be configured to determine a gaze direction of the user based at least in part on light detected by the first profile sensor.Type: GrantFiled: May 18, 2018Date of Patent: April 28, 2020Assignee: Tobii ABInventors: Simon Gustafsson, Daniel Johansson Tornéus, Jonas Andersson, Johannes Kron, Mårten Skogö, Ralf Biedert
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Publication number: 20180349698Abstract: A system for determining a gaze direction of a user is disclosed. The system may include a first illuminator, a first profile sensor, and at least one processor. The first illuminator may be configured to illuminate an eye of a user. The first profile sensor may be configured to detect light reflected by the eye of the user. The processor(s) may be configured to determine a gaze direction of the user based at least in part on light detected by the first profile sensor.Type: ApplicationFiled: May 18, 2018Publication date: December 6, 2018Applicant: Tobii ABInventors: Simon Gustafsson, Daniel Johansson Tornéus, Jonas Andersson, Johannes Kron, Mårten Skogö, Ralf Biedert
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Patent number: 9977960Abstract: A system for determining a gaze direction of a user is disclosed. The system may include a first illuminator, a first profile sensor, and at least one processor. The first illuminator may be configured to illuminate an eye of a user. The first profile sensor may be configured to detect light reflected by the eye of the user. The processor(s) may be configured to determine a gaze direction of the user based at least in part on light detected by the first profile sensor.Type: GrantFiled: September 26, 2016Date of Patent: May 22, 2018Assignee: Tobii ABInventors: Simon Gustafsson, Daniel Johansson Tornéus, Jonas Andersson, Johannes Kron, Mårten Skogö, Ralf Biedert
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Publication number: 20170091549Abstract: A system for determining a gaze direction of a user is disclosed. The system may include a first illuminator, a first profile sensor, and at least one processor. The first illuminator may be configured to illuminate an eye of a user. The first profile sensor may be configured to detect light reflected by the eye of the user. The processor(s) may be configured to determine a gaze direction of the user based at least in part on light detected by the first profile sensor.Type: ApplicationFiled: September 26, 2016Publication date: March 30, 2017Applicant: Tobii ABInventors: Simon Gustafsson, Daniel Johansson Tornéus, Jonas Andersson, Johannes Kron, Mårten Skogö, Ralf Biedert