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基于超连续的超谱LiDAR用于精密激光扫描

Pabitro Ray, David Salido-Monzú, Sandro L Camenzind

|October 20, 2023

概括

这项研究引入了一种新的超频谱LiDAR系统,使用超连续频进行精确的3D绘图和材料识别. 它实现了用于遥感应用的亚毫米精度.

科学领域:

光学和光子学在光学和光子学.
遥感遥感遥感遥感
频谱学是一种光谱学.

背景情况:

超光谱LiDAR将3D几何绘图与光谱反射率相结合,用于先进的遥感.
现有的方法为远程测量提供了有限的精度.
自动点云细分对于数据分析至关重要.

研究的目的:

开发一种新的超光谱LiDAR系统,用于高精度的3D表面几何和光谱反射率映射.
为了达到0.1mm以下的测量精度,在高达50m的范围内测量精度.
为了在3D点云中实现自动化材料分类.

主要方法:

使用超连续 (SC) 激光源从780nm频率进行连贯扩展.
在距离测量中使用差分相位延迟监测间模式节拍音符.
使用0.16nm分辨率的CCD光谱仪获得反向散射光谱.

主要成果:

已证明在0.1毫米以下的测量精度,用于高达50米的扩散目标.
与参考干扰仪相比,获得了大约10-5的相对精度.
展示了使用线性支向量机在基于频谱的材料分类中的初步成功.

结论:

拟议的超光谱LiDAR方法在精度和准确性方面提供了显著的改进.
这项技术具有强大的潜力,用于集成高精度激光扫描和自动化材料分类.
这些发现为更先进的遥感和3D绘图应用铺平了道路.

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