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Received: Mar. 25, 2020
Accepted: Apr. 30, 2020
Posted: Sep. 1, 2020
Published Online: Sep. 16, 2020
The Author Email: Liu Lirong (liulirong1125@163.com)
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Lirong Liu, Xinming Tang, Wenji Zhao, Xiaoming Gao, Junfeng Xie. Detection and Geo-localization of Small Traffic Signs Based on Images and Laser Data[J]. Chinese Journal of Lasers, 2020, 47(9): 0910002
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remote sensing and sensor
Table 1. Statistical results of experimental data
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Table 1. Statistical results of experimental data
Class Training Test Background LCZ 816 272 Circle 477 158 15000 Triangle 113 38
Table 2. Comparison of detection results between SlimNet model and VGG16 model
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Table 2. Comparison of detection results between SlimNet model and VGG16 model
Model Number of iterations Learning rate Test1 Test2 (Test1+Background) AP mAP /% AP mAP /% LCZ Circle Triangle LCZ Circle Triangle SlimNet 3.5×104 1.5×104 0.0005 0.0001 100.0 96.6 96.5 97.8 99.8 62.8 63.5 75.4 VGG16 3.5×104 1.5×104 0.0001 0.0001 99.3 95.1 96.3 96.9 96.9 60.4 56.3 71.2
Table 3. Three types of target geolocation and vectorization results statistics
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Table 3. Three types of target geolocation and vectorization results statistics
Test area Class FP TP FN Recall /% Precision /% Shi Zuishan LCZ 2 51 1 98.1 96.2 Shen Zhen Circle 7 59 9 86.7 89.4 Triangle 5 31 4 88.6 86.1
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