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33 条记录 (耗时 0.019 秒)

    Multi line trace gaze to object mapping for determining gaze focus targets
    1.
    发明授权
    Multi line trace gaze to object mapping for determining gaze focus targets 有权

    公开(公告)号：US11688128B2

    公开(公告)日：2023-06-27

    申请号：US17572883

    申请日：2022-01-11

    申请人： Tobii AB

    发明人： Fredrik Lindh

    IPC分类号： G06T15/50 ,  G02B27/01 ,  G06F3/01 ,  G06T15/06 ,  G06T15/20

    CPC分类号： G06T15/50 ,  G02B27/01 ,  G06F3/011 ,  G06F3/013 ,  G06T15/06 ,  G06T15/20 ,  G06T2200/04

    摘要： A method for determining a focus target of a user's gaze in a three-dimensional (“3D”) scene is disclosed. The method may include determining a first gaze direction of a user into a 3D scene, where the 3D scene includes a plurality of components. The method may also include executing a first plurality of line traces in the 3D scene, where each of the first plurality of Line traces is in proximity to the first gaze direction. The method may further include determining a confidence value for each component intersected by at least one of the first plurality of line traces. The method may additionally include identifying as a focus target of the user the component having the highest confidence value of all components intersected by at least one of the first plurality of line traces.

    Reducing aliasing artifacts in foveated rendering using cross-resolution modulation
    2.
    发明授权
    Reducing aliasing artifacts in foveated rendering using cross-resolution modulation 有权

    公开(公告)号：US10885882B2

    公开(公告)日：2021-01-05

    申请号：US16211917

    申请日：2018-12-06

    申请人： Tobii AB

    发明人： Daan Pieter Nijs ,  Fredrik Lindh

    IPC分类号： G09G5/391 ,  G06F3/01

    摘要： According to the invention, a method for reducing aliasing artifacts in foveated rendering is disclosed. The method may include accessing a high resolution image and a low resolution image corresponding to the high resolution image, and calculating a difference between a pixel of the high resolution image and a sample associated with the low resolution image. The sample of the low resolution image corresponds to the pixel of the high resolution image. The method may further include modifying the pixel to generate a modified pixel of the high resolution image based on determining that the difference is higher than or equal to a threshold value. The modification may be made such that an updated difference between the modified pixel and the sample is smaller than the original difference.

    REDUCING ALIASING ARTIFACTS IN FOVEATED RENDERING USING CROSS-RESOLUTION MODULATION
    3.
    发明申请
    REDUCING ALIASING ARTIFACTS IN FOVEATED RENDERING USING CROSS-RESOLUTION MODULATION 审中-公开

    公开(公告)号：US20200184933A1

    公开(公告)日：2020-06-11

    申请号：US16211917

    申请日：2018-12-06

    申请人： Tobii AB

    发明人： Daan Pieter Nijs ,  Fredrik Lindh

    IPC分类号： G09G5/391 ,  G06F3/01

    摘要： According to the invention, a method for reducing aliasing artifacts in foveated rendering is disclosed. The method may include accessing a high resolution image and a low resolution image corresponding to the high resolution image, and calculating a difference between a pixel of the high resolution image and a sample associated with the low resolution image. The sample of the low resolution image corresponds to the pixel of the high resolution image. The method may further include modifying the pixel to generate a modified pixel of the high resolution image based on determining that the difference is higher than or equal to a threshold value. The modification may be made such that an updated difference between the modified pixel and the sample is smaller than the original difference.

    Multi line trace gaze to object mapping for determining gaze focus targets
    4.
    发明授权
    Multi line trace gaze to object mapping for determining gaze focus targets 有权

    公开(公告)号：US10607401B2

    公开(公告)日：2020-03-31

    申请号：US15941595

    申请日：2018-03-30

    申请人： Tobii AB

    发明人： Fredrik Lindh

    IPC分类号： G06T15/50 ,  G06F3/01 ,  G06T15/06 ,  G02B27/01 ,  G06T15/20

    摘要： A method for determining a focus target of a user's gaze in a three-dimensional (“3D”) scene is disclosed. The method may include determining a first gaze direction of a user into a 3D scene, where the 3D scene includes a plurality of components. The method may also include executing a first plurality of line traces in the 3D scene, where each of the first plurality of line traces is in proximity to the first gaze direction. The method may further include determining a confidence value for each component intersected by at least one of the first plurality of line traces. The method may additionally include identifying as a focus target of the user the component having the highest confidence value of all components intersected by at least one of the first plurality of line traces.

    Method and system for determining a current gaze direction
    7.
    发明授权
    Method and system for determining a current gaze direction 有权

    公开(公告)号：US11579687B2

    公开(公告)日：2023-02-14

    申请号：US16781178

    申请日：2020-02-04

    申请人： Tobii AB

    发明人： Fredrik Lindh

    IPC分类号： G06T15/20 ,  G06F3/01 ,  G06T7/20

    摘要： A method for determining a current gaze direction of a user in relation to a three-dimensional (“3D”) scene, the 3D scene sampled by a rendering function to produce a two-dimensional (“2D”) projection image of the 3D scene, the sampling performed based on a virtual camera in turn being associated with a camera position and camera direction in the 3D scene. The method includes determining, by a gaze direction detection means, a first gaze direction of the user related to the 3D scene at a first gaze time point. The method includes determining a time-dependent virtual camera 3D transformation representing a change of a virtual camera position and/or virtual camera direction between the first gaze time point and a second sampling. The method includes determining the current gaze direction as a modified gaze direction calculated based on the first gaze direction and an inverse of the time-dependent virtual camera 3D transformation.

    Method and system for determining a current gaze direction
    8.
    发明申请
    Method and system for determining a current gaze direction 审中-公开

    公开(公告)号：US20200278746A1

    公开(公告)日：2020-09-03

    申请号：US16781178

    申请日：2020-02-04

    申请人： Tobii AB

    发明人： Fredrik Lindh

    IPC分类号： G06F3/01 ,  G06T7/20 ,  G06T15/20

    摘要： Method for determining a current gaze direction of a user in relation to a three-dimensional (“3D”) scene, which 3D scene is sampled by a rendering function to produce a two-dimensional (“2D”) projection image of the 3D scene, which sampling is performed based on a virtual camera in turn being associated with a camera position and camera direction in the 3D scene, wherein the method comprises the steps: determining, by a gaze direction detection means, a first gaze direction of the user at a first gaze time point, which first gaze direction is related to said 3D scene; determining a virtual camera 3D transformation, which 3D transformation represents a change of a virtual camera position and/or virtual camera direction between the first gaze time point and a second sampling time point, where the second sampling time point is later than the first gaze time point; and determining the said current gaze direction as a modified gaze direction, in turn calculated based on the first gaze direction, and further calculated based on an inverse of said time-dependent virtual camera 3D transformation. The invention also relates to a system and to a computer software function.

    Systems and methods for panning a display of a wearable device
    9.
    发明授权
    Systems and methods for panning a display of a wearable device 有权

    公开(公告)号：US10380419B2

    公开(公告)日：2019-08-13

    申请号：US16162223

    申请日：2018-10-16

    申请人： Tobii AB

    发明人： Simon Gustafsson ,  Henrik Björk ,  Fredrik Lindh ,  Anders Olsson

    IPC分类号： G09G5/00 ,  G06K9/00 ,  G02B27/00 ,  G02B27/01 ,  G06F3/01 ,  G06F3/0481 ,  G06F3/0484 ,  G06F3/03 ,  G06F3/0485 ,  G09G5/34 ,  A61B3/113

    摘要： A method for panning content on a display of a wearable device is disclosed. The method may include determining, via an eye tracking device, a gaze direction of a user. The method may also include determining, via a movement detection system, a head direction of the user. The method may further include, based at least in part on the gaze direction and the head direction both being consistent with a particular direction, causing content displayed on a display of the wearable device to be panned in the particular direction. The method may additionally include determining during panning of the content, via the eye tracking device, that the gaze direction of the user has returned to a neutral position. The method may moreover include, based at least in part on the gaze direction of the user returning to the neutral position, causing content displayed on the display to stop panning.