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An Iterative Closest Points Algorithm for Registration of 3D Laser Scanner Point Clouds with Geometric Features

机译:具有几何特征的3D激光扫描仪点云配准的迭代最近点算法

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摘要

The Iterative Closest Points (ICP) algorithm is the mainstream algorithm used in the process of accurate registration of 3D point cloud data. The algorithm requires a proper initial value and the approximate registration of two point clouds to prevent the algorithm from falling into local extremes, but in the actual point cloud matching process, it is difficult to ensure compliance with this requirement. In this paper, we proposed the ICP algorithm based on point cloud features (GF-ICP). This method uses the geometrical features of the point cloud to be registered, such as curvature, surface normal and point cloud density, to search for the correspondence relationships between two point clouds and introduces the geometric features into the error function to realize the accurate registration of two point clouds. The experimental results showed that the algorithm can improve the convergence speed and the interval of convergence without setting a proper initial value.
机译:迭代最近点(ICP)算法是3D点云数据准确配准过程中使用的主流算法。该算法需要适当的初始值和两个点云的近似配准,以防止算法陷入局部极值,但是在实际的点云匹配过程中,很难确保符合此要求。本文提出了一种基于点云特征的ICP算法(GF-ICP)。该方法利用要记录的点云的几何特征(例如曲率,表面法线和点云密度)来搜索两个点云之间的对应关系,并将几何特征引入误差函数中,以实现对目标云的精确记录。两点云。实验结果表明,该算法无需设置适当的初始值即可提高收敛速度和收敛间隔。

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