基于高清影像的管网明显点测量方法及应用研究  

Study and Application of Survey Method for the Obvious Points of Pipe Networks Based on High-definition Images

作　　者：万雷 黄维[2] 曾毅 WAN Lei;HUANG Wei;ZENG Yi(ChangJiang Spatial Information Technology Engineering Co.,Ltd.,Wuhan 430010,China;Three Gorges Geotechnical Consultants Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]长江空间信息技术工程有限公司,湖北武汉430010 [2]长江三峡勘测研究院有限公司,湖北武汉430074

出　　处：《城市勘测》2023年第4期168-171,共4页Urban Geotechnical Investigation & Surveying

基　　金：长江勘测规划设计研究院自主创新项目(CX2020Z31、CX2019Z57)。

摘　　要：为了克服传统管网点测量操作烦琐、工作效率低、人工劳动强度大、安全风险较高等缺点,提出了一种基于高清影像的管网明显点测量方法。集成了一种地下管网明显点测量装置,利用该装置按照一定的规律获取地表毫米级分辨率的有序影像,结合影像的高精度定位信息进行实景三维模型重建,并基于校准后三维模型进行管网明显点的地面标志的平面坐标和高程测量。采用该方法,以武汉市某条长约1 km的道路进行了试验,试验结果表明:采用该方法测量的管网点精度完全满足平面位置中误差相对于邻近控制点不得大于±5 cm,高程测量中误差相对于邻近控制点不得大于±3 cm的测量精度要求。In order to overcome the shortcomings of the traditional survey methods of underground pipe networks points,such as complicated operation,low efficiency,high labor cost and high safety risk,this paper proposed a survey method for the obvious points of pipe networks based on high-definition images.The special measurement device is integrated,and the device is used to obtain ordered images with millimeter-level resolution of the ground according to certain rules.The 3D model of the surface can be reconstructed with the high-resolution images combined with the high-precision positioning information.And based on the calibrated 3D model,we can survey the plane coordinates and elevation of the obvious points of pipe networks.Based on this method,this paper conducts an experiment on a road with a length of about 1km in Wuhan City.The experiment results show that the accuracy of this method fully satisfies that the error in the plane position relative to the adjacent control points should not be greater than±5cm,and the elevation should not be greater than±3cm.

关 键 词：高清影像 地下管网 明显点 三维模型 测量 

分 类 号：P258[天文地球—测绘科学与技术]