Laser & Optoelectronics Progress, Volume. 58, Issue 8, 0828001(2021)
Point Cloud Georeferencing Based on Fixed Control Primitives of Point, Line, and Surface
Figures & Tables(8)
Fig. 2. Errors of two geography methods. (a) Error of the plane point; (b) error of the spatial point
Table 1. Coordinates and accuracies of ground control points
View tableTable 1. Coordinates and accuracies of ground control points
Point number North coordinate /m East coordinate /m Elevation /m Planar point position error /mm Elevation error /mm K1 5495.4386 8218.0336 37.2285 1.36 0.209 K2 5525.7044 8112.3495 37.1517 1.52 0.315 K3 5477.9588 8189.2281 37.9380 1.04 0.161 K4 5368.6824 8165.1235 37.2274 2.07 0.217
Table 2. Characteristic parameters of the control primitives in the geographic reference coordinate system
View tableTable 2. Characteristic parameters of the control primitives in the geographic reference coordinate system
Primitive category Primitive number Primitive characteristic parameter X Y Z Control point K1/m 5495.4386 8218.0336 38.7994 K2/m 5525.7044 8112.3495 38.7681 K3/m 5477.9588 8189.2281 39.4380 K4/m 5368.6824 8165.1235 38.7274 Control line L1 0.00127295 0.00035120 0.99999913 L2 -0.00298367 0.00017343 0.99999553 Control plane P1 0.10908025 0.99403020 -0.00233792 P2 -0.40381974 0.91483312 0.00315886 P3 0.99387286 -0.11052110 0.00134817
Table 3. Characteristic parameters of the control primitives of each station in the scanning coordinate system
View tableTable 3. Characteristic parameters of the control primitives of each station in the scanning coordinate system
Scan station Primitive number Primitive characteristic parameter X Y Z S1 K1'/m 24.1957 -27.3355 -0.9703 K2'/m -36.6460 64.1949 2.1386 K3'/m -3.3906 58.8066 2.4820 L1' 0.00291538 -0.03029386 0.99953678 P2' 0.28538658 0.95806159 0.02593249 S2 K1'/m 39.0932 98.8350 -0.8236 K2'/m -3.3451 -2.5881 3.7250 K4'/m -122.9577 64.8070 2.482 L2' 0.03001756 -0.00074751 0.99954909 P1' 0.97409640 -0.22370053 -0.03307980 S3 K2'/m -28.0789 -49.9781 -0.5254 K3'/m 37.2946 12.6000 1.1517 K4'/m 137.1247 -37.9807 1.9611 L2' -0.01497985 0.00140723 0.99988681 P3' 0.35472909 0.93494524 0.00668375
Table 4. Geographical parameters of two geographic methods
View tableTable 4. Geographical parameters of two geographic methods
Scan station Geographicmethod XS /m YS /m ZS /m φ /(°) ω /(°) κ /(°) S1 method1 5148.4953 8520.5665 38.8158 -1.1155 1.1393 220.2606 method2 5148.4966 8520.5660 38.8134 -1.1138 1.1407 220.2577 S2 method1 5194.8133 8478.6433 39.5442 -0.0115 2.1240 272.8248 method2 5194.8091 8478.6463 39.5432 -0.0134 2.1316 272.8271 S3 method1 5167.7385 8510.9581 38.8667 -0.2330 0.5101 104.6584 method2 5167.7412 8510.9603 38.8638 -0.2114 0.4851 104.6563
Table 5. RMSE of two geography methods
View tableTable 5. RMSE of two geography methods
Scan station Geographicmethod XS /m YS /m ZS /m φ /(°) ω /(°) κ /(°) S1 method1 3.0 2.9 0.4 0.0086 0.0005 0.0036 method2 2.6 2.0 1.2 0.0047 0.0011 0.0031 S2 method1 4.1 3.3 1.6 0.0045 0.0092 0.0044 method2 2.7 1.8 2.4 0.0097 0.0068 0.0029 S3 method1 3.9 1.3 0.3 0.0004 0.0044 0.0024 method2 1.4 2.1 1.1 0.0075 0.0003 0.0015
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Jiahui Wang, Jili Yao, Xueying Zhao, Xinzhi Hu, Meng Zhao. Point Cloud Georeferencing Based on Fixed Control Primitives of Point, Line, and Surface[J]. Laser & Optoelectronics Progress, 2021, 58(8): 0828001
Paper Information
Category: Remote Sensing and Sensors
Received: Sep. 15, 2020
Accepted: Nov. 5, 2020
Published Online: Apr. 16, 2021
The Author Email: Yao Jili (ysy_941123@sdut.edu.cn)
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