Outline approximation for point cloud of building
    13.
    发明授权
    Outline approximation for point cloud of building 有权
    建筑点云概要近似

    公开(公告)号:US09189862B2

    公开(公告)日:2015-11-17

    申请号:US14012702

    申请日:2013-08-28

    Applicant: Autodesk, Inc.

    Inventor: Yan Fu

    CPC classification number: G06T7/0085 G06K9/00201 G06T7/13 G06T2207/10028

    Abstract: A method, apparatus, system, and computer program product provide the ability to model a polyline boundary from point cloud data. Point cloud data is obtained and boundary cells are extracted. Potential boundary points are filtered from the boundary cells. Line segments are extracted from the potential boundary points and refined. A regularized polygon is obtained by intersecting the refined line segments.

    Abstract translation: 方法,装置,系统和计算机程序产品提供从点云数据建立折线边界的能力。 得到点云数据,并提取边界单元。 从边界单元格过滤边界点。 线段从潜在的边界点提取出来,并进行细化。 通过与精细线段相交获得正则化多边形。

    BUILDING DATUM EXTRACTION FROM LASER SCANNING DATA
    14.
    发明申请
    BUILDING DATUM EXTRACTION FROM LASER SCANNING DATA 有权
    从激光扫描数据建立数据提取

    公开(公告)号:US20150063683A1

    公开(公告)日:2015-03-05

    申请号:US14465569

    申请日:2014-08-21

    Applicant: AUTODESK, INC.

    Inventor: Yan Fu

    CPC classification number: G06K9/00201

    Abstract: A method, apparatus, system, and computer program product provide the ability to extract level information and reference grid information from point cloud data. Point cloud data is obtained and organized into a three-dimensional structure of voxels. Potential boundary points are filtered from the boundary cells. Level information is extracted from a Z-axis histogram of the voxels positioned along the Z-axis of the three-dimensional voxel structure and further refined. Reference grid information is extracted from an X-axis histogram of the voxels positioned along the X-axis of the three-dimensional voxel structure and a Y-axis histogram of the voxels positioned along the Y-axis of the three-dimensional voxel structure and further refined.

    Abstract translation: 一种方法,装置,系统和计算机程序产品提供从点云数据中提取级别信息和引用网格信息的能力。 点云数据被获取并被组织成体素的三维结构。 从边界单元格过滤边界点。 从沿着三维体素结构的Z轴定位的体素的Z轴直方图中提取水平信息,并进一步细化。 从沿着三维体素结构的X轴定位的体素的X轴直方图和沿着三维体素结构的Y轴定位的体素的Y轴直方图提取参考网格信息,以及 进一步完善。

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