抛撒地雷的夜视智能探测方法研究 -

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抛撒地雷的夜视智能探测方法研究

doi:10.37188/CO.2020-0214

王驰^{1, 2,},
于明坤¹,
杨辰烨¹,
李思远¹,
李富迪¹,
李金辉²,
方东²,
栾信群^2,,

1.
上海大学精密机械工程系，上海 200444
2.
近地面探测技术重点实验室，江苏无锡 214035

基金项目:国家自然科学基金（No. 41704123，No.61773249）；近地面探测技术重点实验室基金（ No. TCGZ2020C003）

详细信息

作者简介:
王　驰（1982—），男，河南太康人，博士（后），教授，2009年于天津大学获得博士学位，现为上海大学机电工程与自动化学院教师，主要从事精密测试及仪器等方面的研究。E-mail：wangchi@shu.edu.cn
栾信群（1968—），女，江苏泰州人，硕士，高级工程师，1990年于国防科技大学获学士学位，2006年于西安交通大学获硕士学位，主要从事近地面目标探测技术研究。E-mail：xinqun_luan@126.com

中图分类号:TN247; TN223; TP212.6
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- 被引次数:0
出版历程
- 收稿日期:2020-12-22
- 修回日期:2021-01-14
- 网络出版日期:2021-03-27
- 刊出日期:2021-09-18

Night vision intelligent detection method of scatterable landmines

1.
Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China
2.
Science and Technology on Near-Surface Detection Laboratory, Wuxi 214035, China

Funds:Supported by National Natural Science Foundation of China (No. 41704123, No. 61773249); Science and Technology on Near-Surface Detection Laboratory (No. TCGZ2020C003)

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Corresponding author:xinqun_luan@126.com

摘要

摘要:本文提出一种基于机器学习的抛撒地雷的夜视智能探测方法。首先，根据YOLO系列机器学习算法，设计并优化了抛撒地雷的智能检测网络模型；其次，根据几何光学成像的相似性原理，研究抛撒地雷的测距模型。最后，搭建抛撒地雷的夜视智能探测系统进行实验测试分析。实验结果显示，优化后抛撒地雷智能探测网络模型的准确度达到98.97%、召回率达到99.22%、均值平均精度为99.2%；在给定的实验条件下，利用优化后的抛撒地雷测距模型，对抛撒地雷的距离测算误差为±10 cm，表明利用机器学习可以用于对抛撒地雷进行智能探测。
- 抛撒地雷探测/
- 机器学习/
- 微光夜视/
- 单目测距
Abstract:Night vision intelligent detection method of scatterable landmines based on machine learning is presented. Firstly, the intelligent detection network model of scatterable landmines is designed and optimized based on the YOLO series algorithm. Then, the model measuring the distance between scatterable landmines and detection equipment is proposed based on the similarity principle of geometric optical imaging. Finally, a night vision intelligent detection system for scatterable landmines is built, tested and analyzed. The experimental results show that the optimized intelligent detection network model can detect scatterable landmines with an accuracy of 98.97%, a recall rate of 99.22%, and a mean average accuracy of 99.2%. Under the given experimental conditions, the optimized scatterable landmine ranging model has an error of ±10 cm in the calculated distance of scatterable landmines. The study shows that machine learning can perform intelligent and long-distance detection of scatterable landmines.
- scatterable mines detection/
- machine learning/
- low-light-level night vision/
- monocular ranging

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图 1YOLO(V2)网络结构图

Figure 1.YOLO(V2) network structure diagram

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图 2模型测试集的PR曲线

Figure 2.PR curves of the model’s test set

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图 3距离测量原理示意图

Figure 3.Schematic diagram of the distance measurement principle

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图 4实验用抛撒地雷

Figure 4.Scatterable landmines used in the experiment

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图 5抛撒地雷智能探测系统图

Figure 5.Diagram of the intelligent detection system of scatterable landmines

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图 672式防坦克金属地雷

Figure 6.Type 72 anti-tank metal landmine

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图 7背景为平坦地面的地雷

Figure 7.Scatterable landmines with flat background

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图 8背景为草丛的58式防步兵橡胶地雷

Figure 8.Type 58 anti-infantry rubber landmine with grass in the background

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图 9高斯拟合曲线图

Figure 9.Gaussian fitting curves

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表 1训练参数

Table 1.Training parameters

参数名称	参数值
网络权重更新的batch数目	64
网络实际训练细分批次数	8
网络训练图片的宽	832
网络训练图片的高	832
动量参数	0.9
权重衰减系数	0.0005
学习率	0.001
迭代次数	100200

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表 2测试集测试时相关指标

Table 2.Relevant indexes during test set testing

	Instance number	TureMines	FalseMines	Recall	Precision	Map
Before optimization	387	374	11	96.64%	97.14%	95.286%
After optimization	387	384	4	99.22%	98.97%	99.2%

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表 3抛撒地雷测距实验数据

Table 3.Experimental data of distance measurement for scatterable landmines

测量次数	测距仪测量距离/cm	优化前算法测量距离/cm	误差值/cm	误差
1	461.3	465.9	4.6	0.99%
2	582.0	595.3	13.3	2.28%
3	641.5	662.4	20.9	3.26%
4	782.6	818.0	35.4	4.52%
5	960.5	1014.9	54.4	5.66%
6	1083.8	1155.5	71.7	6.62%
7	1284.8	1387.6	102.8	8.00%
8	1343.4	1470.0	126.6	9.42%
9	1464.5	1618.9	154.4	10.54%
10	1584.1	1775.3	191.2	12.07%
11	1786.5	2033.2	246.7	13.81%
12	1844.4	2119.9	275.5	14.94%
13	1906.7	2199.7	293.0	15.37%
14	2088.4	2466.8	378.4	18.12%
15	2147.9	2657.8	509.9	23.73%
16	2285.4	2791.9	506.5	22.16%

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表 4优化算法后抛撒地雷测距实验数据

Table 4.Experimental data of the distance between the scatterable landmine and the camera after optimizing the algorithm

测量次数	测距仪测量距离/cm	优化后算法测量距离/cm	误差值/cm	误差
1	461.3	484.2	22.9	4.96%
2	582.0	584.5	2.5	0.43%
3	641.5	640.0	−1.5	−0.23%
4	782.6	775.5	−7.1	−0.91%
5	960.5	954.5	−6.0	−0.62%
6	1083.8	1082.2	−1.6	−0.15%
7	1284.8	1283.8	−1.0	−0.08%
8	1343.4	1351.5	8.1	0.60%
9	1464.5	1469.0	4.5	0.31%
10	1584.1	1588.2	4.1	0.26%
11	1786.5	1784.8	−1.7	−0.09%
12	1844.4	1851.8	7.4	0.40%
13	1906.7	1912.9	6.2	0.32%
14	2088.4	2097.0	8.5	0.41%
15	2147.9	2153.0	4.9	0.23%
16	2285.4	2285.6	0.2	0.01%

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