Bingtao Chang, Chuanfa Chen, Jiaojiao Guo, Huiming Wu. Interpolation-based filtering with segmentation for airborne LiDAR point clouds[J]. Infrared and Laser Engineering, 2021, 50(9): 20200369
- Infrared and Laser Engineering
- Vol. 50, Issue 9, 20200369 (2021)
Fig. 1. Flow chart of the proposed method
Fig. 2. Classical region growing method
Fig. 3. Improved region growing method
Fig. 4. Spatial position error caused by terrain slope
Fig. 5. Total errors of the proposed method against and the 15 filtering algorithms
Fig. 6. Filtering results of the proposed method on samp11, samp21, samp51 and samp52
Fig. 7. Digital surface models of the three samples
Fig. 8. (a) Reference data and interpolated DEMs of (b) proposed method, (c) MHC, (d) PMF, (e) PTD and (f) CSF on s2
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Table 1. Optimized parameters and filtering accuracy of the proposed method on the 15 samples
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Table 2. Filtering accuracy of the proposed method against the 4 filtering algorithms
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