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    Determining positional information of an object in space
    3.
    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

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David Holz

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

    CPC classification number: G01S17/36 ,  G01S7/483 ,  G01S7/4815 ,  G01S17/003 ,  G01S17/04 ,  G01S17/42 ,  G01S17/48 ,  G01S17/89

    Abstract: 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.

    Dynamic, free-space user interactions for machine control
    4.
    发明授权
    Dynamic, free-space user interactions for machine control 有权

    公开(公告)号：US11243612B2

    公开(公告)日：2022-02-08

    申请号：US16195755

    申请日：2018-11-19

    Applicant: Ultrahaptics IP Two Limited

    Inventor： Raffi Bedikian ,  Jonathan Marsden ,  Keith Mertens ,  David Holz ,  Maxwell Sills ,  Matias Perez ,  Gabriel Hare ,  Ryan Julian

    IPC: G06F3/01 ,  G06F3/0481 ,  G06F3/03 ,  G06K9/00 ,  G06K9/62

    Abstract: Embodiments of display control based on dynamic user interactions generally include capturing a plurality of temporally sequential images of the user, or a body part or other control object manipulated by the user, and computationally analyzing the images to recognize a gesture performed by the user. In some embodiments, a scale indicative of an actual gesture distance traversed in performance of the gesture is identified, and a movement or action is displayed on the device based, at least in part, on a ratio between the identified scale and the scale of the displayed movement. In some embodiments, a degree of completion of the recognized gesture is determined, and the display contents are modified in accordance therewith. In some embodiments, a dominant gesture is computationally determined from among a plurality of user gestures, and an action displayed on the device is based on the dominant gesture.

    Identifying an object in a field of view
    5.
    发明授权
    Identifying an object in a field of view 有权

    公开(公告)号：US10832080B2

    公开(公告)日：2020-11-10

    申请号：US16295663

    申请日：2019-03-07

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David Holz

    IPC: G06F3/03 ,  G09G3/34 ,  G06K9/46 ,  G06F3/01 ,  G06T7/55 ,  G06F3/042 ,  H04N5/235 ,  G06K9/52 ,  G06K9/00

    Abstract: The technology disclosed relates to identifying an object in a field of view of a camera. In particular, it relates to identifying a display in the field of view of the camera. This is achieved by monitoring a space including acquiring a series of image frames of the space using the camera and detecting one or more light sources in the series of image frames. Further, one or more frequencies of periodic intensity or brightness variations, also referred to as ‘refresh rate’, of light emitted from the light sources is measured. Based on the one or more frequencies of periodic intensity variations of light emitted from the light sources, at least one display that includes the light sources is identified.

    Resource-responsive motion capture
    6.
    发明授权
    Resource-responsive motion capture 有权

    公开(公告)号：US10725555B2

    公开(公告)日：2020-07-28

    申请号：US16290738

    申请日：2019-03-01

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David Holz

    IPC: G06F3/01 ,  G06F3/00

    Abstract: The technology disclosed relates to operating a motion-capture system responsive to available computational resources. In particular, it relates to assessing a level of image acquisition and image-analysis resources available using benchmarking of system components. In response, one or more image acquisition parameters and/or image-analysis parameters are adjusted. Acquisition and/or analysis of image data are then made compliant with the adjusted image acquisition parameters and/or image-analysis parameters. In some implementations, image acquisition parameters include frame resolution and frame capture rate and image-analysis parameters include analysis algorithm and analysis density.

    Determining imperfections in an imaging camera for determining the orientation of objects in space
    9.
    发明授权
    Determining imperfections in an imaging camera for determining the orientation of objects in space 有权

    公开(公告)号：US12025719B2

    公开(公告)日：2024-07-02

    申请号：US17344835

    申请日：2021-06-10

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David Holz

    IPC: G06T7/70 ,  G01S3/786 ,  G01S17/46

    CPC classification number: G01S3/7864 ,  G06T7/70 ,  G01S17/46

    Abstract: A method and system determines object orientation using a light source to create a shadow line extending from the light source. A camera captures an image including the shadow line on an object surface. An orientation module determines the surface orientation from the shadow line. In some examples a transparency imperfection in a window through which a camera receives light can be detected and a message sent to a user as to the presence of a light-blocking or light-distorting substance or particle. A system can control illumination while imaging an object in space using a light source mounted to a support structure so a camera captures an image of the illuminated object. Direct illumination of the camera by light from the light source can be prevented such as by blocking the light or using a light-transmissive window adjacent the camera to reject light transmitted directly from the light source.

    Dynamic user interactions for display control
    10.
    发明授权
    Dynamic user interactions for display control 有权

    公开(公告)号：US11181985B2

    公开(公告)日：2021-11-23

    申请号：US16886746

    申请日：2020-05-28

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David Holz

    IPC: G06F3/01 ,  G06F3/03 ,  G06F13/10 ,  G06F9/4401 ,  G06K9/00 ,  G06F16/50 ,  G06F16/53

    Abstract: The technology disclosed relates to using gestures to supplant or augment use of a standard input device coupled to a system. It also relates to controlling a display using gestures. It further relates to controlling a system using more than one input device. In particular, it relates to detecting a standard input device that causes on-screen actions on a display in response to control manipulations performed using the standard input device. Further, a library of analogous gestures is identified, which includes gestures that are analogous to the control manipulations and also cause the on-screen actions responsive to the control manipulations. Thus, when a gesture from the library of analogous gestures is detected, a signal is generated that mimics a standard signal from the standard input device and causes at least one on-screen action.

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