Laser & Optoelectronics Progress, Volume. 59, Issue 8, 0815008(2022)
Landscape Tree Extraction Based on the Marked Point Process with Spatial Constraints from Light Detection and Ranging
Figures & Tables(8)
Fig. 2. Experimental data 1. (a) Point cloud data 1; (b) optical image 1; (c) filtered result 1; (d) landscape tree marker result 1
Fig. 3. Experimental data 2. (a) Point cloud data 2; (b) optical image 2; (c) filtered result 2; (d) landscape tree marker result 2
Fig. 4. Experimental data 3. (a) Point cloud data 3; (b) optical image 3; (c) filtered result 3; (d) landscape tree marker result 3
Fig. 5. Result images of landscape tree detection. (a) Experimental result 1; (b) experimental result 2; (c) experimental result 3
Fig. 6. Filtering results of Terrasolid software. (a) Terrasolid filtering result 1; (b) Terrasolid filtering result 2; (c) Terrasolid filtering result 3
Table 1. Parameter table
View tableTable 1. Parameter table
Parameter Regulation criteria μr， σr μr， σr are determined by the sizes of the landscape trees’ crown τμ， εμ τμ， εμ are determined by the average elevation value of each landscape tree τσ， εσ τσ， εσ are determined by the height difference of the landscape tree μQ， σQ μQ， σQ are determined by the density of data points of each landscape tree μb， σb μb， σb are determined by the height distribution of non-tree data points ϵr， ϵμ， ϵσ ϵr， ϵμ， ϵσ ars denoted fine-tune the step sizes， the value is 0.05-0.5 in the experiment， respectively Tm Tm is determined by the complexity of the research scene
Table 2. Quantitative evaluation
View tableTable 2. Quantitative evaluation
Indicator Tree No. 1 2 3 4 5 6 7 8 9 Ngt 38 191 83 147 61 32 44 181 27 Nd 36 199 83 119 63 40 32 176 27 Ntp 36 191 83 119 46 31 32 168 27 Rext /% 95 100 100 81 75 97 71 93 100 Rcor /% 100 96 100 100 73 78 97 96 100 Indicator Tree No. Overall 10 11 12 13 14 15 16 17 Ngt 45 157 34 155 233 188 23 195 1834 Nd 42 157 29 167 217 203 24 198 1812 Ntp 40 152 29 150 212 184 23 191 1714 Rext /% 89 97 85 97 91 98 100 98 93.46 Rcor /% 95 97 100 90 98 91 96 96 94.59
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Hongyue Chen, Quanhua Zhao, Yu Li, Yiding Wang. Landscape Tree Extraction Based on the Marked Point Process with Spatial Constraints from Light Detection and Ranging[J]. Laser & Optoelectronics Progress, 2022, 59(8): 0815008
Paper Information
Category: Machine Vision
Received: Mar. 22, 2021
Accepted: May. 7, 2021
Published Online: Apr. 11, 2022
The Author Email: Zhao Quanhua (zqhlby@163.com)
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