Yulin Cai, Hongzhen Gao, Xiaole Fan, Huiyu Xu, Zhengjun Liu, Geng Zhang. Fine Classification of Tree Species Based on Improved U-Net Network[J]. Laser & Optoelectronics Progress, 2025, 62(2): 0228002
- Laser & Optoelectronics Progress
- Vol. 62, Issue 2, 0228002 (2025)
Fig. 1. Channel attention mechanism
Fig. 2. CA-U-Net structure
Fig. 3. Location of study areas
Fig. 4. LiDAR point cloud data and true-color images for study area 1 and 2. (a) LiDAR point cloud data for study area 1; (b) LiDAR point cloud data for study area 2; (c) true-color image for study area 1; (d) true-color image for study area 2
Fig. 5. Comparison of classification results of CA-U-Net and U-Net
Fig. 6. Model training process. (a) U-Net; (b) CA-U-Net
Fig. 7. Proportion of different samples
Fig. 8. Comparison of classification results of CB-CA-U-Net and CA-U-Net
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Table 1. Comparison of classification accuracy between different networks
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Table 2. Comparison of performance of CA-U-Net and CB-CA-U-Net
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