中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

961 records (took 0.034 seconds)

    DETERMINING THE ORIENTATION OF AN OBJECT IN SPACE
    1.
    发明公开
    DETERMINING THE ORIENTATION OF AN OBJECT IN SPACE 审中-公开

    公开(公告)号：US20240345198A1

    公开(公告)日：2024-10-17

    申请号：US18757280

    申请日：2024-06-27

    Applicant: ULTRAHAPTICS IP TWO LIMITED

    Inventor： David HOLZ

    IPC: G01S3/786 ,  G06T7/70 ,  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.

    System to determine direction toward user
    2.
    发明授权
    System to determine direction toward user 有权

    公开(公告)号：US11714157B2

    公开(公告)日：2023-08-01

    申请号：US17174941

    申请日：2021-02-12

    Applicant: AMAZON TECHNOLOGIES, INC.

    Inventor： Carlos Renato Nakagawa ,  Mohamed Mansour ,  Borham Lee ,  Shobha Devi Kuruba Buchannagari

    IPC: G01S3/80 ,  G01S3/786 ,  H04R1/40 ,  H04R3/00

    CPC classification number: G01S3/8003 ,  G01S3/7864 ,  H04R1/406 ,  H04R3/005

    Abstract: A device has a microphone array that acquires sound data and a camera that acquires image data. A portion of the device may be moveable by one or more actuators. Responsive to the user, the portion of the device is moved toward an estimated direction of the user. The estimated direction is based on sensor data including the sound data and the image data. First variance values for individual sound direction values are calculated. Data derived from the image data or data from other sensors may be used to modify the first variance values and determine second data comprising second variances. The second data may be processed to determine the estimated direction of the user. For example, the second data may be processed by both a forward and a backward Kalman filter, and the output combined to determine an estimated direction toward the user.

    OBJECT TRACKING METHOD
    3.
    发明申请
    OBJECT TRACKING METHOD 审中-公开

    公开(公告)号：US20180247419A1

    公开(公告)日：2018-08-30

    申请号：US15494467

    申请日：2017-04-22

    Applicant: GrassWonder Inc.

    Inventor： Ching-Kang LEE

    IPC: G06T7/246 ,  H04N5/232 ,  H04N5/225 ,  G06T7/73

    CPC classification number: G06T7/248 ,  G01S3/786 ,  G01S3/7864 ,  G06T2207/20104 ,  G06T2207/30201 ,  H04N5/232933 ,  H04N5/23299

    Abstract: An object tracking method is disclosed. The object tracking method of the present invention is adapted for an object tracking system with an image capture device and a bearing device. In the present invention, the connection between the image capture device and the bearing device is firstly established. A first sample image is captured by the image capture module and an object on the image is selected to be a tracked object. The coordinate of the tracked object is compared with the coordinate of a target location and a control signal is generated according to the difference between the coordinates of the object and the target location. Finally, the control signal is transmitted to the bearing device and the bearing seat is driven by the driving module to rotate or move such that the tracked object is located at the target location.

    LINEAR OPTICAL SENSOR ARRAYS (LOSA) TRACKING SYSTEM FOR ACTIVE MARKER BASED 3D MOTION TRACKING
    8.
    发明申请
    LINEAR OPTICAL SENSOR ARRAYS (LOSA) TRACKING SYSTEM FOR ACTIVE MARKER BASED 3D MOTION TRACKING 审中-公开

    公开(公告)号：US20180081027A1

    公开(公告)日：2018-03-22

    申请号：US15709766

    申请日：2017-09-20

    Applicant: Pinhas Ben-Tzvi

    Inventor： Pinhas Ben-Tzvi ,  Anil Kumar

    IPC: G01S5/16 ,  G01S3/786 ,  G01S3/781 ,  H04N13/02

    CPC classification number: G01S5/163 ,  G01B11/002 ,  G01C21/00 ,  G01S3/781 ,  G01S3/7864 ,  G06T2207/30204 ,  H04N13/243

    Abstract: The present invention is a standalone motion tracking device using Linear Optical Sensor Arrays (LOSA). The invention constitutes a tracker module and an active marker, which communicate with each other wirelessly. The motion tracking device uses optical tracking along with inertial sensing to estimate the position and attitude of the active marker relative to the tracker module. The system determines the position of the active marker using stereovision triangulation through multiple views emanating from different LOSA modules. The present invention also features novel use of a multi-slit aperture for LOSA sensors in order to increase the field of view and resolution of the position estimates. The system uniquely leverages the structural geometry of the active marker, along with inertial sensing, to estimate the attitude of the active marker relative to the tracker module without relying on magnetic sensing that may often be unreliable.

Patent Agency Ranking