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

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- 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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