A Comparison Study on Three-dimensional Measurement of Vegetation Using Lidar and SfM on the Ground
A Comparison Study on Three-dimensional Measurement of Vegetation Using Lidar and SfM on the Ground
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DOI：
10.11450/seitaikogaku.30.15
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发表时间：
2018-01-01
期刊：
影响因子：
0.3
通讯作者：
Hosoi, Fumiki
中科院分区：
文献类型：
--
作者：
Itakura, Kenta;Kamakura, Itchoku;Hosoi, Fumiki
监测树干直径、树高、叶面积密度等森林三维结构参数具有重要意义。运动结构 (SfM) 和激光雷达被认为是测量植物结构的有用工具。本研究对SfM和激光雷达进行了比较研究，以了解它们的精度、测量条件、成本和易用性。利用SfM和激光雷达可以获得树干直径、高度和树木周围的景观。尽管使用 SfM 时处理数据需要时间，但 SfM 不需要昂贵的设备和复杂的技能。另外，它还包含颜色信息，因此很可能可以将颜色信息和三维结构结合起来。对于激光雷达来说，可以覆盖大的目标站点，并且不需要时间来处理和分析数据。因此，SfM和激光雷达各有优缺点。因此，应根据目标和测量条件选择它们作为树木三维测量的工具。
It is important to monitor three-dimensional structural parameters of forests such as tree trunk diameter, tree height and leaf area density. Structure from motion (SfM) and lidar are known as useful tools to measure plant structures. In this study, a comparison study of SfM and lidar were conducted in order to know their accuracy, measurement condition, cost and easiness to use. Tree trunk diameter, height and landscape around trees could be obtained by using SfM and lidar. Although it takes time to process data when using SfM, SfM does not necessitate expensive equipment and sophisticated skills. Additionally, it contains color information, so it is likely that color information and three-dimensional structure can be combined. As for lidar, large target site can be covered, and it does not take time to process and analyze data. Thus, SfM and lidar have advantages and disadvantages. From this reason, they should be selected as a tool of three-dimensional measurement of trees in refer to objectives and measurement conditions.