Acta Optica Sinica, Volume. 43, Issue 12, 1228006(2023)
A Cross-Source Image Point Cloud Registration Method Combined with Graph Theory
Figures & Tables(8)
Fig. 2. Construction of kernel triangle. (a) Kernel triangles of source point cloud; (b) kernel triangles of target point cloud
Fig. 3. Node correspondence between two graphs in three experiments. (a) Experiment 1; (b) experiment 2; (c) experiment 3
Fig. 4. Comparison between satellite and aerial point cloud before and after registration
Fig. 5. Visualization of point cloud registration results of different algorithms
Table 1. Information of experimental data
View tableTable 1. Information of experimental data
Experiment Platform Image number Image resolution Point number Point cloud resolution /m Point cloud density Scale difference Holes and noise 1 Satellite 2 0.6 m/0.8 m 2951830 0.60 82.6 939 Some Close-range 345 2. 8 cm 19653882 0.28 1148.5 2 Satellite 2 0.6 m/0.8 m 2530455 0.60 81.4 260 Many Close-range 193 3.0 cm 6568756 0.30 1023.0 3 Satellite 2 0.6 m/0.8 m 1498842 0.60 53.8 134 Plenty Close-range 70 5.0 cm 1850839 0.50 128.8
Table 2. Accuracy comparison of coarse and fine registration
View tableTable 2. Accuracy comparison of coarse and fine registration
Registration Experiment 1 Experiment 2 Experiment 3 RMSE ME RMSE ME RMSE ME Coarse registration 7.56 6.93 7.45 6.66 23.79 21.61 Fine registration 5.16 5.11 6.39 5.69 9.02 8.66
Table 3. Comparison of registration performance between proposed algorithm and other algorithms
View tableTable 3. Comparison of registration performance between proposed algorithm and other algorithms
Algorithm Experiment 1 Experiment 2 Experiment 3 Time /s Chamfer distance Time /s Chamfer distance Time /s Chamfer distance CPD 2910.92 0.238 1153.01 0.235 309.02 0.234 RANSAC 13113.22 0.194 4331.51 0.105 1943.10 0.175 IGSP 343.99 0.187 803.09 0.211 746.09 0.238 ICP 32.84 0.113 28.63 0.094 22.59 0.102 Proposed 71.04 0.106 45.63 0.080 37.82 0.094
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Guanghan Chu, Dazhao Fan, Yang Dong, Song Ji, Zhixin Li. A Cross-Source Image Point Cloud Registration Method Combined with Graph Theory[J]. Acta Optica Sinica, 2023, 43(12): 1228006
Paper Information
Category: Remote Sensing and Sensors
Received: Sep. 13, 2022
Accepted: Nov. 7, 2022
Published Online: Jun. 20, 2023
The Author Email: Fan Dazhao (fdzcehui@163.com)
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