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    METHOD AND APPARATUS FOR CALIBRATING AUGMENTED REALITY HEADSETS
    2.
    发明公开
    METHOD AND APPARATUS FOR CALIBRATING AUGMENTED REALITY HEADSETS 审中-公开

    公开(公告)号：US20230419460A1

    公开(公告)日：2023-12-28

    申请号：US18367947

    申请日：2023-09-13

    申请人： Ultrahaptics IP Two Limited

    发明人： Johnathon Scott SELSTAD ,  David Samuel HOLZ

    IPC分类号： G06T5/00 ,  G06T19/20 ,  G06T19/00

    CPC分类号： G06T5/006 ,  G06T19/20 ,  G06T19/006

    摘要： An AR calibration system for correcting AR headset distortions. A calibration image is provided to a screen and viewable through a headset reflector, and an inverse of the calibration image is provided to a headset display, reflected off the reflector and observed by a camera of the system while it is simultaneously observing the calibration image on the screen. One or more cameras are located to represent a user's point of view and aligned to observe the inverse calibration image projected onto the reflector. A distortion mapping transform is created using an algorithm to search through projection positions of the inverse calibration image until the inverse image observed by the camera(s) cancels out an acceptable portion of the calibration image provided to the screen as observed through the reflector by the camera, and the transform is used by the headset, to compensate for distortions.

    Determining positional information of an object in space
    5.
    发明授权
    Determining positional information of an object in space 有权

    公开(公告)号：US11693115B2

    公开(公告)日：2023-07-04

    申请号：US16799598

    申请日：2020-02-24

    申请人： Ultrahaptics IP Two Limited

    发明人： David Holz

    IPC分类号： G06F3/01 ,  G01S17/36 ,  G01S17/42 ,  G01S17/00 ,  G01S17/48 ,  G01S17/89 ,  G01S7/481 ,  G01S17/04 ,  G01S7/483

    CPC分类号： G01S17/36 ,  G01S7/483 ,  G01S7/4815 ,  G01S17/003 ,  G01S17/04 ,  G01S17/42 ,  G01S17/48 ,  G01S17/89

    摘要： The technology disclosed relates to determining positional information of an object in a field of view. In particular, it relates to measuring, using a light sensitive sensor, one or more differences in an intensity of returning light that is (i) emitted from respective directionally oriented non-coplanar light sources of a plurality of directionally oriented light sources that have at least some overlapping fields of illumination and (ii) reflected from the target object as the target object moves through a region of space monitored by the light sensitive sensor, and recognizing signals in response to (i) positional information of the target object determined based on, a first position in space at a first time t0 and a second position in space at a second time t1 sensed using the measured one or more differences in the intensity of the returning light and (ii) a non-coplanar movement of the target object.