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    Dynamic, free-space user interactions for machine control
    2.
    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.

    Hand pose estimation for machine learning based gesture recognition
    3.
    发明授权
    Hand pose estimation for machine learning based gesture recognition 有权

    公开(公告)号：US12147505B1

    公开(公告)日：2024-11-19

    申请号：US18224373

    申请日：2023-07-20

    Applicant: ULTRAHAPTICS IP TWO LIMITED

    Inventor： Jonathan Marsden ,  Raffi Bedikian ,  David Samuel Holz

    IPC: G06K9/62 ,  G06F18/2411 ,  G06K9/00 ,  G06T7/13 ,  G06V10/44 ,  G06V40/20

    Abstract: The technology disclosed performs hand pose estimation on a so-called “joint-by-joint” basis. So, when a plurality of estimates for the 28 hand joints are received from a plurality of expert networks (and from master experts in some high-confidence scenarios), the estimates are analyzed at a joint level and a final location for each joint is calculated based on the plurality of estimates for a particular joint. This is a novel solution discovered by the technology disclosed because nothing in the field of art determines hand pose estimates at such granularity and precision. Regarding granularity and precision, because hand pose estimates are computed on a joint-by-joint basis, this allows the technology disclosed to detect in real time even the minutest and most subtle hand movements, such a bend/yaw/tilt/roll of a segment of a finger or a tilt an occluded finger, as demonstrated supra in the Experimental Results section of this application.

    Interactions with virtual objects for machine control
    7.
    发明授权
    Interactions with virtual objects for machine control 有权

    公开(公告)号：US11182685B2

    公开(公告)日：2021-11-23

    申请号：US16000768

    申请日：2018-06-05

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David S. Holz ,  Raffi Bedikian ,  Adrian Gasinski ,  Maxwell Sills ,  Hua Yang ,  Gabriel Hare

    IPC: G06N5/04 ,  G06F3/0481 ,  G06F3/0484 ,  G06F3/03 ,  G06F3/042 ,  G06F3/01

    Abstract: The technology disclosed relates to manipulating a virtual object. In particular, it relates to detecting a hand in a three-dimensional (3D) sensory space and generating a predictive model of the hand, and using the predictive model to track motion of the hand. The predictive model includes positions of calculation points of fingers, thumb and palm of the hand. The technology disclosed relates to dynamically selecting at least one manipulation point proximate to a virtual object based on the motion tracked by the predictive model and positions of one or more of the calculation points, and manipulating the virtual object by interaction between at least some of the calculation points of the predictive model and the dynamically selected manipulation point.

    Interactions with virtual objects for machine control
    10.
    发明授权
    Interactions with virtual objects for machine control 有权

    公开(公告)号：US12164694B2

    公开(公告)日：2024-12-10

    申请号：US17532976

    申请日：2021-11-22

    Applicant: Ultrahaptics IP Two Limited

    Inventor： David S. Holz ,  Raffi Bedikian ,  Adrian Gasinski ,  Maxwell Sills ,  Hua Yang ,  Gabriel Hare

    IPC: G06F3/04842 ,  G06F3/01 ,  G06F3/03 ,  G06F3/042 ,  G06F3/04815 ,  G06N5/04

    Abstract: The technology disclosed relates to manipulating a virtual object. In particular, it relates to detecting a hand in a three-dimensional (3D) sensory space and generating a predictive model of the hand, and using the predictive model to track motion of the hand. The predictive model includes positions of calculation points of fingers, thumb and palm of the hand. The technology disclosed relates to dynamically selecting at least one manipulation point proximate to a virtual object based on the motion tracked by the predictive model and positions of one or more of the calculation points, and manipulating the virtual object by interaction between at least some of the calculation points of the predictive model and the dynamically selected manipulation point.

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