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首页> 外文期刊>Scandinavian Journal of Forest Research >Applying airborne LiDAR for forested road geomatics.
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Applying airborne LiDAR for forested road geomatics.

机译：将机载LiDAR应用于森林公路测绘。

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摘要

Airborne Light Detection and Ranging (LiDAR) has become a popular remote sensing technology to create digital terrain models and provide forest inventory information. However, little research has been done to investigate the accuracy of using scanning airborne LiDAR to perform road geomatics tasks common to forest engineering. We used airborne LiDAR to estimate existing forest road characteristics in support of a road assessment under four different canopy conditions. In estimating existing road centerlines, LiDAR data had a vertical root mean squared error (RMSE) of 0.28 m and a horizontal RMSE of 1.21 m. Road grades were estimated to within 1% slope of the value sampled in the field and horizontal curve radii were estimated with an average absolute error of 3.17 m. The results suggest that airborne LiDAR is an acceptable data source to estimate forest road centerlines and grades, but some caution should be used in estimating horizontal curve radii, particularly on sharp curves.
机译：机载光检测和测距（LiDAR）已成为一种流行的遥感技术，可以创建数字地形模型并提供森林清单信息。但是，很少有研究来调查使用扫描机载LiDAR来执行森林工程常见的道路测绘任务的准确性。我们使用机载LiDAR估算了现有的林道特征，以支持在四种不同冠层条件下进行道路评估。在估算现有道路中心线时，LiDAR数据的垂直均方根误差（RMSE）为0.28 m，水平RMSE为1.21 m。道路坡度估计为野外采样值的1％斜率以内，水平曲线半径估计为平均绝对误差为3.17 m。结果表明，机载LiDAR是评估森林道路中心线和坡度的可接受的数据源，但在估计水平曲线半径（特别是在急弯处）时应谨慎行事。

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