DETERMINING THE RELATIVE LOCATIONS OF MULTIPLE MOTION-TRACKING DEVICES

    公开(公告)号:US20220392183A1

    公开(公告)日:2022-12-08

    申请号:US17578236

    申请日:2022-01-18

    Inventor: David S. HOLZ

    Abstract: The technology disclosed relates to coordinating motion-capture of a hand by a network of motion-capture sensors having overlapping fields of view. In particular, it relates to designating a first sensor among three or more motion-capture sensors as having a master frame of reference, observing motion of a hand as it passes through overlapping fields of view of the respective motion-capture sensors, synchronizing capture of images of the hand within the overlapping fields of view by pairs of the motion-capture devices, and using the pairs of the hand images captured by the synchronized motion-capture devices to automatically calibrate the motion-capture sensors to the master frame of reference frame.

    Adjusting Motion Capture Based on the Distance Between Tracked Objects

    公开(公告)号:US20210258474A1

    公开(公告)日:2021-08-19

    申请号:US17246522

    申请日:2021-04-30

    Inventor: David S. HOLZ

    Abstract: The technology disclosed relates to adjusting the monitored field of view of a camera and/or a view of a virtual scene from a point of view of a virtual camera based on the distance between tracked objects. For example, if the user's hand is being tracked for gestures, the closer the hand gets to another object, the tighter the frame can become—i.e., the more the camera can zoom in so that the hand and the other object occupy most of the frame. The camera can also be reoriented so that the hand and the other object remain in the center of the field of view. The distance between two objects in a camera's field of view can be determined and a parameter of a motion-capture system adjusted based thereon. In particular, the pan and/or zoom levels of the camera may be adjusted in accordance with the distance.

    Enhanced Field of View to Augment Three-Dimensional (3D) Sensory Space for Free-Space Gesture Interpretation

    公开(公告)号:US20210181810A1

    公开(公告)日:2021-06-17

    申请号:US17189111

    申请日:2021-03-01

    Abstract: The technology disclosed relates to enhancing the fields of view of one or more cameras of a gesture recognition system for augmenting the three-dimensional (3D) sensory space of the gesture recognition system. The augmented 3D sensory space allows for inclusion of previously uncaptured of regions and points for which gestures can be interpreted i.e. blind spots of the cameras of the gesture recognition system. Some examples of such blind spots include areas underneath the cameras and/or within 20-85 degrees of a tangential axis of the cameras. In particular, the technology disclosed uses a Fresnel prismatic element and/or a triangular prism element to redirect the optical axis of the cameras, giving the cameras fields of view that cover at least 45 to 80 degrees from tangential to the vertical axis of a display screen on which the cameras are mounted.

    DYNAMIC INTERACTIVE OBJECTS
    29.
    发明申请

    公开(公告)号:US20200241728A1

    公开(公告)日:2020-07-30

    申请号:US16848696

    申请日:2020-04-14

    Inventor: David S. HOLZ

    Abstract: Aspects of the systems and methods are described providing for modifying a presented interactive element or object, such as a cursor, based on user-input gestures, the presented environment of the cursor, or any combination thereof. The color, size, shape, transparency, and/or responsiveness of the cursor may change based on the gesture velocity, acceleration, or path. In one implementation, the cursor “stretches” to graphically indicate the velocity and/or acceleration of the gesture. The display properties of the cursor may also change if, for example, the area of the screen occupied by the cursor is dark, bright, textured, or is otherwise complicated. In another implementation, the cursor is drawn using sub-pixel smoothing to improve its visual quality.

    DETERMINING THE RELATIVE LOCATIONS OF MULTIPLE MOTION-TRACKING DEVICES

    公开(公告)号:US20190392238A1

    公开(公告)日:2019-12-26

    申请号:US16525476

    申请日:2019-07-29

    Inventor: David S. HOLZ

    Abstract: The technology disclosed relates to coordinating motion-capture of a hand by a network of motion-capture sensors having overlapping fields of view. In particular, it relates to designating a first sensor among three or more motion-capture sensors as having a master frame of reference, observing motion of a hand as it passes through overlapping fields of view of the respective motion-capture sensors, synchronizing capture of images of the hand within the overlapping fields of view by pairs of the motion-capture devices, and using the pairs of the hand images captured by the synchronized motion-capture devices to automatically calibrate the motion-capture sensors to the master frame of reference frame.

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