公开(公告)号：US20190354172A1

公开(公告)日：2019-11-21

申请号：US15981629

申请日：2018-05-16

Applicant: Tobii AB

Inventor： Alexander Davies ,  Maria Gordon ,  Per-Edvin Stoltz

IPC: G06F3/01

Abstract: A system and techniques for calibrating an eye tracking system are described. The system can update the calibration of personal calibration parameters continuously based on a user's gaze on a user interface, following user interface stimulus events. The system improves continuous calibration techniques by determining an association between the user's eye sequences and the stimulus events, and updates the personal calibration parameters accordingly. A record indicative of a user gaze, including eye sequences, such as eye movements or eye fixations, is maintained over a time period. A user interface stimulus event associated with the user interface and occurring within the time period is detected. An association is determined between the eye sequence and the user interface stimulus event. An interaction observation that includes the eye sequence and a location of the stimulus event is generated. Personal calibration parameters are updated based on the interaction observation.

公开(公告)号：US10528131B2

公开(公告)日：2020-01-07

申请号：US15981629

申请日：2018-05-16

Applicant: Tobii AB

Inventor： Alexander Davies ,  Maria Gordon ,  Per-Edvin Stoltz

IPC: G06F3/01

Abstract: A system and techniques for calibrating an eye tracking system are described. The system can update the calibration of personal calibration parameters continuously based on a user's gaze on a user interface, following user interface stimulus events. The system improves continuous calibration techniques by determining an association between the user's eye sequences and the stimulus events, and updates the personal calibration parameters accordingly. A record indicative of a user gaze, including eye sequences, such as eye movements or eye fixations, is maintained over a time period. A user interface stimulus event associated with the user interface and occurring within the time period is detected. An association is determined between the eye sequence and the user interface stimulus event. An interaction observation that includes the eye sequence and a location of the stimulus event is generated. Personal calibration parameters are updated based on the interaction observation.

公开(公告)号：US20210014442A1

公开(公告)日：2021-01-14

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.

公开(公告)号：US20180270436A1

公开(公告)日：2018-09-20

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

CPC classification number: H04N5/378 ,  G06F3/012 ,  G06F3/013 ,  G06K9/00604 ,  G06K9/3208 ,  G06K9/3233 ,  G06T7/70 ,  G06T2207/10152 ,  H04N5/2256 ,  H04N5/332 ,  H04N5/345 ,  H04N9/04553

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.

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.

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.