公开(公告)号：US20210302529A1

公开(公告)日：2021-09-30

申请号：US17344835

申请日：2021-06-10

Applicant: Ultrahaptics IP Two Limited

Inventor： David HOLZ

IPC: G01S3/786 ,  G06T7/70

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.

公开(公告)号：US20210019549A1

公开(公告)日：2021-01-21

申请号：US17061434

申请日：2020-10-01

Applicant: Ultrahaptics IP Two Limited

Inventor： David HOLZ

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

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.

公开(公告)号：US20240061511A1

公开(公告)日：2024-02-22

申请号：US18219517

申请日：2023-07-07

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 ,  G06F3/04815 ,  G06F3/03 ,  G06V40/20

CPC classification number: G06F3/017 ,  G06F3/04815 ,  G06F3/0325 ,  G06V40/20

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, the gesture is identified as an engagement gesture, and compared with reference gestures from a library of reference gestures. In some embodiments, a degree of completion of the recognized engagement 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.

公开(公告)号：US20200293115A1

公开(公告)日：2020-09-17

申请号：US16886746

申请日：2020-05-28

Applicant: Ultrahaptics IP Two Limited

Inventor： David HOLZ

IPC: G06F3/01 ,  G06F3/03

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.