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公开(公告)号：US11042205B2
公开(公告)日：2021-06-22
申请号：US15785039
申请日：2017-10-16
Applicant: Tobii AB
Inventor： John Mikael Elvesjö , Anders Kingbäck , Gunnar Troili , Mårten Skogö , Henrik Eskilsson , Peter Blixt
IPC: G06F1/3231 , G06F1/3287 , G06F3/01 , G06F1/3234 , G06K9/00
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.
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公开(公告)号：US10314484B2
公开(公告)日：2019-06-11
申请号：US15595672
申请日：2017-05-15
Applicant: TOBII AB
Inventor： Peter Blixt , Gunnar Troili , Anders Kingbäck , John Mikael Elvesjö , Mårten Skogö
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.
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公开(公告)号：US10191542B2
公开(公告)日：2019-01-29
申请号：US15483298
申请日：2017-04-10
Applicant: TOBII AB
Inventor： Peter Blixt , Anders Kingback , Bengt Rehnstrom , John Elvesjö , Mattias Kuldkepp
Abstract: 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.
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公开(公告)号：US20180239412A1
公开(公告)日：2018-08-23
申请号：US15785039
申请日：2017-10-16
Applicant: Tobii AB
Inventor： John Mikael Elvesjö , Anders Kingbäck , Gunnar Troili , Mårten Skogö , Henrik Eskilsson , Peter Blixt
CPC classification number: G06F1/3231 , G06F1/3265 , G06F1/3287 , G06F3/013 , G06K9/00221 , Y02D10/171
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.
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公开(公告)号：US20170316264A1
公开(公告)日：2017-11-02
申请号：US15651976
申请日：2017-07-17
Applicant: Tobii AB
Inventor： Simon Gustafsson , Anders Kingbäck , Peter Blixt , Richard Hainzl , Mårten Skogö
Abstract: A system for determining a gaze direction of a user of a wearable device is disclosed. The system may include a primary lens, an illuminator, an image sensor, and an interface. The illuminator may include a light guide, may be disposed at least partially on or in the primary lens, and may be configured to illuminate at least one eye of a user. The image sensor may be disposed on or in the primary lens, and may be configured to detect light reflected by the at least one eye of the user. The interface may be configured to provide data from the image sensor to a processor for determining a gaze direction of the user based at least in part on light detected by the image sensor.
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Patent Agency Ranking
公开(公告)号：US20170220107A1
公开(公告)日：2017-08-03
申请号：US15483298
申请日：2017-04-10
Applicant: TOBII AB
Inventor： Peter Blixt , Anders Kingback , Bengt Rehnstrom , John Elvesjö , Mattias Kuldkepp
Abstract: 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.
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公开(公告)号：US09632180B2
公开(公告)日：2017-04-25
申请号：US15005198
申请日：2016-01-25
Applicant: TOBII AB
Inventor： Peter Blixt , Anders Kingback , Bengt Rehnstrom , John Elvesjö , Mattias Kuldkepp
Abstract: 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.
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公开(公告)号：US09194952B2
公开(公告)日：2015-11-24
申请号：US14585586
申请日：2014-12-30
Applicant: Tobii AB
Inventor： Peter Blixt , Bengt Rehnström , Anders Kingbäck , John Mikael Elvesjö , Mattias Kuldkepp
Abstract: 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.
Abstract translation: 视觉显示器包括适于发出不可见光的隐藏参考照明器，用于在观看显示器的屏幕表面的眼睛上产生角膜巩膜反射。 跟踪这种反射和瞳孔中心为注视跟踪提供输入。 还提供了一种用于装备的方法和具有参考照明器的LCD。 还提供了一种用于确定观看包括参考照明器的视觉显示器的眼睛的凝视点的系统和方法。 注视点的确定可以基于椭圆形角膜模型。
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公开(公告)号：US11089254B2
公开(公告)日：2021-08-10
申请号：US16796501
申请日：2020-02-20
Applicant: Tobii AB
Inventor： Magnus Ivarsson , Per-Edvin Stoltz , David Masko , Niklas Ollesson , Mårten Skogö , Peter Blixt , Henrik Jönsson
IPC: H04N5/378 , G06K9/00 , G06T7/70 , G06K9/32 , H04N5/225 , G06F3/01 , H04N5/345 , H04N5/33 , H04N9/04
Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
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公开(公告)号：US10594974B2
公开(公告)日：2020-03-17
申请号：US15976640
申请日：2018-05-10
Applicant: Tobii AB
Inventor： Magnus Ivarsson , Per-Edvin Stoltz , David Masko , Niklas Ollesson , Mårten Skogö , Peter Blixt , Henrik Jönsson
IPC: H04N5/378 , G06K9/00 , G06T7/70 , G06K9/32 , H04N5/345 , H04N5/225 , G06F3/01 , H04N5/33 , H04N9/04
Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
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