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    Method and device for eye tracking using event camera data
    15.
    发明授权
    Method and device for eye tracking using event camera data 有权

    公开(公告)号：US11474348B2

    公开(公告)日：2022-10-18

    申请号：US17481272

    申请日：2021-09-21

    Applicant: Apple Inc.

    Inventor： Branko Petljanski ,  Raffi A. Bedikian ,  Daniel Kurz ,  Thomas Gebauer ,  Li Jia

    IPC: G02B27/00 ,  G02B27/01 ,  G06F3/01

    Abstract: In one implementation, a method includes emitting light with modulating intensity from a plurality of light sources towards an eye of a user. The method includes receiving light intensity data indicative of an intensity of the plurality of glints reflected by the eye of the user in the form of a plurality of glints. The method includes determining an eye tracking characteristic of the user based on the light intensity data. In one implementation, a method includes generating, using an event camera comprising a plurality of light sensors at a plurality of respective locations, a plurality of event messages, each of the plurality of event messages being generated in response to a particular light sensor detecting a change in intensity of light and indicating a particular location of the particular light sensor. The method includes determining an eye tracking characteristic of a user based on the plurality of event messages.

    Lens Array for Shifting Perspective of an Imaging System
    16.
    发明申请
    Lens Array for Shifting Perspective of an Imaging System 有权

    公开(公告)号：US20220146820A1

    公开(公告)日：2022-05-12

    申请号：US17450128

    申请日：2021-10-06

    Applicant: Apple Inc.

    Inventor： Noah D. Bedard ,  Branko Petljanski ,  Kathrin Berkner Cieslicki ,  Ricardo J. Motta

    IPC: G02B27/00 ,  G06T19/00 ,  G06V20/20

    Abstract: This disclosure describes a novel lens system having an entrance pupil at a location matching, or nearly matching, the eye's optical system entrance pupil. The described lens system is significantly thinner than a single-aperture lens with matched entrance pupil and is achieved by using an array of camera elements. Each camera element contains camera optics called “lenslets” and a sensor (e.g., an image or depth sensor), where a lenslet can include one or more lens elements (e.g., a compound lens). Individual camera elements can be arranged such that THEIR optical axes intersect at, or near, the eye's entrance pupil location. In addition, each camera element's field-of-view (FOV) corresponds to a small sector of a large FOV. The FOVs of adjacent camera elements can be non- or slightly-overlapping so that a wide-angle image can be formed by concatenation of the individual camera element images.

    Lens array for shifting perspective of an imaging system
    17.
    发明授权
    Lens array for shifting perspective of an imaging system 有权

    公开(公告)号：US11143865B1

    公开(公告)日：2021-10-12

    申请号：US16210909

    申请日：2018-12-05

    Applicant: Apple Inc.

    Inventor： Noah D. Bedard ,  Branko Petljanski ,  Kathrin Berkner Cieslicki ,  Ricardo J. Motta

    IPC: G02B27/00 ,  G06K9/00 ,  G06T19/00

    Abstract: This disclosure describes a novel lens system having an entrance pupil at a location matching, or nearly matching, the eye's optical system entrance pupil. The described lens system is significantly thinner than a single-aperture lens with matched entrance pupil and is achieved by using an array of camera elements. Each camera element contains camera optics called “lenslets” and a sensor (e.g., an image or depth sensor), where a lenslet can include one or more lens elements (e.g., a compound lens). Individual camera elements can be arranged such that THEIR optical axes intersect at, or near, the eye's entrance pupil location. In addition, each camera element's field-of-view (FOV) corresponds to a small sector of a large FOV. The FOVs of adjacent camera elements can be non- or slightly-overlapping so that a wide-angle image can be formed by concatenation of the individual camera element images.

    METHOD AND DEVICE FOR EYE TRACKING USING EVENT CAMERA DATA
    18.
    发明申请
    METHOD AND DEVICE FOR EYE TRACKING USING EVENT CAMERA DATA 审中-公开

    公开(公告)号：US20200278539A1

    公开(公告)日：2020-09-03

    申请号：US16651228

    申请日：2017-09-28

    Applicant: Apple Inc.

    Inventor： Branko Petljanski ,  Raffi A. Bedikian ,  Daniel Kurz ,  Thomas Gebauer ,  Li Jia

    IPC: G02B27/00 ,  G06F3/01 ,  G02B27/01

    Abstract: In one implementation, a method includes emitting light with modulating intensity from a plurality of light sources towards an eye of a user. The method includes receiving light intensity data indicative of an intensity of the plurality of glints reflected by the eye of the user in the form of a plurality of glints and determining an eye tracking characteristic of the user based on the light intensity data. In one implementation, a method includes generating, using an event camera comprising a plurality of light sensors at a plurality of respective locations, a plurality of event messages, each of the plurality of event messages being generated in response to a particular light sensor detecting a change in intensity of light and indicating a particular location of the particular light sensor. The method includes determining an eye tracking characteristic of a user based on the plurality of event messages.

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