基于室内高光谱激光雷达的典型树种叶片光谱观测和分类
Spectral observation and classification of typical tree species leaves based on indoor hyperspectral lidar
1 The Key Laboratory for Silviculture and Conservation of Ministry of Education, College of Forestry, Beijing Forestry University,00083Beijing, China
2 Department of Remote Sensing and Photogrammetry, Finnish Geospatial Research Institute, Geodeetinrinne,Kirkkonummi0431, Finland
3 Key Laboratory of Quantitative Remote Sensing Information Technology, Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing100094, China
4 Department of Electronic and Information Engineering,Anhui Jianzhu University, Hefei230601,China
图 & 表
图 1. 可调谐高光谱激光雷达工作示意图
Fig. 1. Tunable HSL system working diagram
下载图片 查看原文
图 2. 可调谐高光谱激光雷达测量杨树现场照片
Fig. 2. Measurement of Populus tomentosa by the Tunable HSL system
下载图片 查看原文
图 4. 10种叶片光谱反射率曲线(可调谐高光谱激光雷达测量)
Fig. 4. Spectral reflectance curves of 17 kinds of leaves by HSL
下载图片 查看原文
图 5. ASD光谱仪测量叶片光谱曲线
Fig. 5. The spectral curves measured by ASD spectrometer
下载图片 查看原文
图 6. 10种树种叶片的LiDAR光谱和ASD光谱的对比
Fig. 6. Comparison of LiDAR and ASD spectrometer of 10 species leaves
下载图片 查看原文
图 7. 白蜡叶片在不同波段扩增后的HSL曲线
Fig. 7. The extended spectral curves of Fraxinus pennsylvanica
下载图片 查看原文
图 8. 10种叶片在每个波段上反射率导数的标准差
Fig. 8. Standard deviation of the derivative of reflectivity of 10 leaves at each wavelength
下载图片 查看原文
表 110种叶片样本及其观测图片(红色点为激光扫描点)
Table1. 10种叶片样本及其观测图片(红色点为激光扫描点)
树种 | 白蜡 | 丁香 | 栾树 | 银杏 | 国槐 |
---|
观测 现场 照片 | | | | | | 树种 | 忍冬 | 山桃 | 杨树 | 杜仲 | 玉兰 | 观测 现场 照片 | | | | | |
|
查看原文
表 2NDVI、reNDVI、VOG1在17种叶片中的单因素方差分析
Table2. NDVI、reNDVI、VOG1在17种叶片中的单因素方差分析
植被参数 | | 平方和 | df | 均方 | F | 显著性 |
---|
NDVI | 组间 | 1.349 | 9 | 0.150 | 31.540 | .000 | 组内 | 0.903 | 190 | 0.005 | | | 总数 | 2.252 | 199 | | | | reNDVI | 组间 | 0.654 | 9 | 0.073 | 64.926 | .000 | 组内 | 0.213 | 190 | 0.001 | | | 总数 | 0.867 | 199 | | | | VOG1 | 组间 | 1.863 | 9 | 0.207 | 116.627 | .000 | 组内 | 0.337 | 190 | 0.002 | | | 总数 | 2.200 | 199 | | | |
|
查看原文
表 3原始波段下随机森林法叶片种类分类精度
Table3. 原始波段下随机森林法叶片种类分类精度
波段范围 | 650~750 | 755~850 | 855~950 | 955~1 000 | 650~1 000 |
---|
分类精度 | 0.9418 | 0.8212 | 0.7144 | 0.6231 | 0.7831 |
|
查看原文
胡佩纶, 陈育伟, 蒋长辉, 林起楠, 李伟, 漆建波, 俞琳锋, 邵慧, 黄华国. 基于室内高光谱激光雷达的典型树种叶片光谱观测和分类[J]. 红外与毫米波学报, 2020, 39(3): 372. Pei-Lun HU, Yu-Wei CHEN, Chang-Hui JIANG, Qi-Nan LIN, Wei LI, Jian-Bo QI, Lin-Feng YU, Hui SHAO, Hua-Guo HUANG. Spectral observation and classification of typical tree species leaves based on indoor hyperspectral lidar[J]. Journal of Infrared and Millimeter Waves, 2020, 39(3): 372.