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    Laser projection system and method
    21.
    发明授权
    Laser projection system and method 有权

    公开(公告)号：US10157458B2

    公开(公告)日：2018-12-18

    申请号：US15432331

    申请日：2017-02-14

    Applicant: Virtek Vision International ULC

    Inventor： Kurt D. Rueb

    IPC: H04N9/47 ,  G06T7/00 ,  G01C11/00 ,  G01C15/00 ,  G01C11/02 ,  H04N5/225 ,  H04N9/31 ,  G01B11/00 ,  G01B11/25 ,  G06T7/194 ,  G06T7/73 ,  G06T7/11 ,  H04N13/254 ,  B23Q17/24 ,  G01C11/08 ,  H04N13/239

    Abstract: A laser projection system for projecting an image on a workpiece includes a photogrammetry assembly and a laser projector, each communicating with a computer. The photogrammetry assembly includes a first camera for scanning the workpiece, and the laser projector projects a laser image to arbitrary locations. Light is conveyed from the direction of the workpiece to the photogrammetry assembly. The photogrammetry assembly signals the coordinates light conveyed toward the photogrammetry assembly to the computer with the computer being programmable for determining a geometric location of the laser image. The computer establishes a geometric correlation between the photogrammetry assembly, the laser projector, and the workpiece for realigning the laser image to a corrected geometric location relative to the workpiece.

    Method and apparatus for contour mapping and orthophoto mapping
    24.
    发明授权
    Method and apparatus for contour mapping and orthophoto mapping 失效
    用于轮廓绘制和正交绘图的方法和装置

    公开(公告)号：US3950097A

    公开(公告)日：1976-04-13

    申请号：US550222

    申请日：1975-02-18

    Applicant: Wolfgang M. Gopfert ,  Alvin A. Read

    Inventor： Wolfgang M. Gopfert ,  Alvin A. Read

    IPC: G01C11/06 ,  G01C11/08

    CPC classification number: G01C11/06

    Abstract: This invention describes an analog system for the automation of the stereocompilation process and for producing contour maps and orthophoto maps. It employs a combination of coherent optical and electronic techniques for the correlation of stereophoto pairs and thus the computation of parallaxes in the photogrammetric sense, for the selection of specific parallaxes, and for the production of contour maps and orthophoto maps.The system in a basic form reproduces perspective contours of the imagery, and in a more complete system corrects the perspective contours into orthographic contours and orthophoto-maps.

    Positioning systems and methods
    25.
    发明授权
    Positioning systems and methods 有权

    公开(公告)号：US12181281B2

    公开(公告)日：2024-12-31

    申请号：US17656874

    申请日：2022-03-28

    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.

    Inventor： Yongjun Fang ,  Guoquan Zhang

    IPC: G01C11/08 ,  G05D1/00 ,  G05D1/10 ,  G06T7/00 ,  G06T7/70 ,  G08B19/00

    Abstract: The present disclosure may provide a system for positioning a target scene and/or navigating a detection equipment to the target scene. The system may obtain at least one image captured by at least one camera. The at least one image may include the target scene. The system may also determine a position of the target scene based on the at least one image. Further, the system may plan a travelling route for a detection equipment to the target scene based on the position of the target scene.

    MEASUREMENT METHOD, MEASUREMENT SYSTEMS AND AUXILIARY MEASUREMENT INSTRUMENTS
    27.
    发明申请
    MEASUREMENT METHOD, MEASUREMENT SYSTEMS AND AUXILIARY MEASUREMENT INSTRUMENTS 有权

    公开(公告)号：US20220172406A1

    公开(公告)日：2022-06-02

    申请号：US17550357

    申请日：2021-12-14

    Applicant: LEICA GEOSYSTEMS AG

    Inventor： Josef MUELLER ,  Oliver FAIX ,  Jochen SCHEJA ,  Stefan PETKOV ,  Josef LAIS ,  Tim MAYER ,  Bernhard METZLER

    IPC: G06T11/00 ,  G06T7/70 ,  G06V10/74 ,  G06F3/041 ,  G01C11/08 ,  G01C11/02

    Abstract: A method and device for displaying desired positions in a live image of a construction site. The method mat include recording at least one position-referenced image of the construction site; linking at least one desired position to the position-referenced image; storing the position-referenced image together with desired position linkage in an electronic memory; recording a live image of the construction site, in particular in the form of a video, wherein the live image and the position-referenced image at least partially represent an identical detail of the construction site; retrieving the stored position-referenced image from the memory; fitting the position-referenced image with the live image, so that the desired position linked to the position-referenced image can be overlaid in a position-faithful manner on the live image; and position-faithful display of the desired position as a graphic marking in the live image.

    SYSTEM AND METHOD FOR MEASURING A DISPLACEMENT OF A MOBILE PLATFORM
    30.
    发明申请
    SYSTEM AND METHOD FOR MEASURING A DISPLACEMENT OF A MOBILE PLATFORM 审中-公开

    公开(公告)号：US20200149887A1

    公开(公告)日：2020-05-14

    申请号：US16733550

    申请日：2020-01-03

    Applicant: SZ DJI TECHNOLOGY CO., LTD.

    Inventor： Honghui ZHANG

    IPC: G01C11/06 ,  G06T7/246 ,  G01C11/08 ,  G06T7/285 ,  G06T7/00 ,  G01C21/00

    Abstract: A method for detecting a displacement of a mobile platform is provided. The method includes acquiring a first frame and a second frame using an imaging device that is coupled to the mobile platform, and obtaining rotation data using an inertial measurement unit (IMU) that is coupled to the mobile platform. The method also includes calculating a translation array based on the first frame, the second frame, and the rotation data. The method further includes determining the displacement of the mobile platform based on the translation array.

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