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    METHODS AND APPARATUS FOR POINT CLOUD DATA PROCESSING
    2.
    发明公开
    METHODS AND APPARATUS FOR POINT CLOUD DATA PROCESSING 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR PUNKTWOLKENDATENVERARBEITUNG

    公开(公告)号：EP2820565A2

    公开(公告)日：2015-01-07

    申请号：EP13754382.3

    申请日：2013-02-26

    申请人： Trimble AB

    发明人： HERNANDEZ LONDONO, Jorge ,  CHAPERON, Thomas ,  TREMBLAY, Guillaume

    IPC分类号： G06F17/16 ,  G01C7/00 ,  G06T7/00 ,  H04N1/41

    CPC分类号： G06F17/3007 ,  G06F17/30091 ,  G06F17/30126 ,  G06F17/30153 ,  G06F17/3028 ,  G06T15/10 ,  G06T2215/16

    摘要： Methods and apparatus are provided for processing of data representing points in space wherein each is represented by components defining its position in a coordinate system and at least one parameter. For each point, the data are separated into a layer per component, and each component is assigned to a cell of a two-dimensional grid of cells such that corresponding cells of multiple layers contain the components of a point. A component of a point is retrieved by reference to a grid position corresponding to the point and to a layer corresponding to the component. Each layer is segmented into patches of cells such that a component of a point can be retrieved by reference to a grid position of a patch within a layer and to a grid position of a cell within a patch. A layer is compressed using an associated codec.

    摘要翻译： 提供了用于处理表示空间中的点的数据的方法和装置，其中每个由在坐标系中定义其位置的组件和至少一个参数表示。 对于每个点，将数据分成每个组件的层，并且将每个组件分配给单元的二维网格的单元格，使得多个层的相应单元格包含点的组件。 通过参考对应于该点的网格位置和对应于该组件的层来检索点的分量。 每个层被分割成细胞块，使得可以通过参考层内的贴片的网格位置和贴片内的细胞的网格位置来检索点的分量。 使用相关的编解码器压缩图层。

    Tunnel measuring method and apparatus
    4.
    发明公开
    Tunnel measuring method and apparatus 失效
    隧道测量方法和装置

    公开(公告)号：EP0320461A3

    公开(公告)日：1991-06-19

    申请号：EP88830448.2

    申请日：1988-10-25

    申请人： Fryer, Glenn E.

    发明人： Fryer, Glenn E.

    IPC分类号： G01S15/87 ,  G01C7/00 ,  G01S15/18

    CPC分类号： G01S15/14 ,  G01C7/06 ,  G01S15/87 ,  G01S2015/939

    摘要： A method and an apparatus (21) are provided for automatically measuring the interior dimensions of tunnels (20). The apparatus is mounted on an inspection vehicle and comprises a plurality of ultrasonic transducers (12, 13, 14, 15) which are arranged to form an imaginary template a predetermined distance from the tunnel wall (20). The transducers (12, 13, 14, 15) are periodically operated by a computer (C) to derive measurement information as the inspection vehicle moves through the tunnel. The results of each measurement are stored by the computer (C) for subsequent analysis.

    Tunnel measuring method and apparatus
    5.
    发明公开
    Tunnel measuring method and apparatus 失效
    Messverfahren undGerätfürTunnel。

    公开(公告)号：EP0320461A2

    公开(公告)日：1989-06-14

    申请号：EP88830448.2

    申请日：1988-10-25

    申请人： Fryer, Glenn E.

    发明人： Fryer, Glenn E.

    IPC分类号： G01S15/87 ,  G01C7/00 ,  G01S15/18

    CPC分类号： G01S15/14 ,  G01C7/06 ,  G01S15/87 ,  G01S2015/939

    摘要： A method and an apparatus (21) are provided for automatically measuring the interior dimensions of tunnels (20). The apparatus is mounted on an inspection vehicle and comprises a plurality of ultrasonic transducers (12, 13, 14, 15) which are arranged to form an imaginary template a predetermined distance from the tunnel wall (20). The transducers (12, 13, 14, 15) are periodically operated by a computer (C) to derive measurement information as the inspection vehicle moves through the tunnel. The results of each measurement are stored by the computer (C) for subsequent analysis.

    摘要翻译： 提供了一种用于自动测量隧道（20）的内部尺寸的方法和装置（21）。 该装置安装在检查车辆上并且包括多个超声换能器（12,13,14,15），这些超声波换能器布置成形成距隧道壁（20）预定距离的假想模板。 传感器（12,13,14,15）由计算机（C）周期性地操作，以便在检查车辆穿过隧道时移动测量信息。 每个测量结果由计算机（C）存储以供后续分析。