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.
中科院分区:
文献类型:
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作者:
Stanley, Michael H.;Laefer, Debra F.
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.
DOI:
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发表时间:
2018
期刊:
影响因子:
--
作者:
A. Habib
通讯作者:
A. Habib
DOI:
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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