Zhen DAI, Rong HE, Hongtao WANG, Weisen BAI. Adaptive single tree extraction method based on fusion of airborne lidar and vegetation index[J]. Optics and Precision Engineering, 2023, 31(22): 3331
- Optics and Precision Engineering
- Vol. 31, Issue 22, 3331 (2023)
Fig. 1. Overall flow chart
Fig. 2. Selection of visible light vegetation index
Fig. 3. Comparison of fusion effects
Fig. 4. Improvement process of marking watershed algorithm
Fig. 5. Initial data generation point cloud
Fig. 6. SLAM elevation displays vegetation hierarchy
Fig. 7. Vegetation subdivision results and influencing factors
Fig. 8. Single tree segmentation overlay effect
Fig. 9. Comparison of multiple single tree segmentation algorithms
Fig. 10. Comparison accuracy evaluation of vegetation extraction results
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Table 1. Visible vegetation index
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Table 2. Accuracy report of vegetation extraction
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Table 3. Accuracy evaluation of single tree segmentation in MCWS algorithm
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Table 4. Accuracy evaluation of single tree segmentation based on improved algorithm
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