Metrics for aerial, urban lidar point clouds

Metrics for aerial, urban lidar point clouds
复制标题

空中、城市激光雷达点云的指标

DOI:
10.1016/j.isprsjprs.2021.01.010
复制
发表时间:
2021
影响因子:
12.7
通讯作者:
Laefer, Debra F.
Laefer, Debra F.
中科院分区:
工程技术1区
文献类型:
--
作者:
Stanley, Michael H.;Laefer, Debra F.

文献摘要

参考文献

被引文献

相似文献

本文介绍了空中点云的五个新密度和准确性指标,以解决城市场景现代密集激光扫描的复杂性和目标。这五个度量描述了(1)垂直表面密度(垂直表面上的每面积点数);(2)垂直密度作为水平密度的函数;(3)垂直表面精度;以及误差分解为(4)通内和(5)交叉通分量。具体考虑的是垂直表面覆盖和重叠飞行通道的实践,以减少遮挡并实现二十一世纪用例(例如,路边和窗口检测)所需的垂直密度。将这些指标应用于最近的四座城市立交桥,通过建立(1)在预测垂直表面上的点密度时考虑传感器位置和墙高的有效性;(2)交叉通道配准占垂直表面误差的不成比例的量,证明了它们的相关性(但不是水平的),并提供了一个有意义的参数来比较高密度,城市点云;和(3)与水平密度和精度相比,垂直对应物受到现代优化飞行任务的不成比例的影响(密度方面有利,准确性方面不利)。
This paper introduces five new density and accuracy metrics for aerial point clouds that address the complexity and objectives of modern, dense laser scans of urban scenes. The five metrics describe (1) vertical surface density (points per area on vertical surfaces); (2) vertical density as a function of horizontal density; (3) vertical surface accuracy; and a decomposition of error into (4) within-pass and (5) cross-pass components. Specifically considered is vertical surface coverage and the practice of overlapping flight passes to reduce the occlusions and achieve the vertical density needed for twenty-first-century use cases (e.g. curb and window detection). The application of these metrics to a quartet of recent urban flyovers demonstrates their relevance by establishing (1) the efficacy of considering sensor position and wall height when predicting point density on vertical surfaces; (2) that cross-pass registration accounts for a disproportionate amount of the vertical surface error (but not horizontal) and provides a meaningful parameter to compare high-density, urban point clouds; and (3) that compared to horizontal density and accuracy, the vertical counterparts are disproportionately impacted (positively for density and negatively for accuracy) by modern, optimized flight missions.
光探测和测距测绘的准确性、质量保证和质量控制
DOI: --
发表时间: 2018
期刊:
影响因子: --
作者:
A. Habib
通讯作者: A. Habib
丹麦高程模型 (DK-DEM) 的质量评估报告
DOI: --
发表时间: 2016
期刊:
影响因子: --
作者:
A. Flatman;Brigitte Rosenkranz;Kristian Evers;P. Bartels;S. Kokkendorff;T. Knudsen;Thorbjørn M Nielsen
通讯作者: Thorbjørn M Nielsen
DOI: --
发表时间: 2018
期刊: The Grants Register 2019
影响因子: --
作者:
Laura Fortunato;Serena Lettera;S. Totaro;M. Lazoi;C. Bisconti;A. Corallo;Giovanni Pantalone
通讯作者: Giovanni Pantalone