摘要
地下管线被人们称为城市的生命线,其对于城市的规划、建设和管理工作至关重要。人们通常借助探地雷达来探明地下管线的具体位置,探地雷达所具备的非开挖和操作简便特征可大幅减少工作量、节约外业成本,然而地质雷达剖面的解释工作则要求具备较高的物探专业知识和经验,对高效生产造成了一定的阻碍。为此本文利用基于Canny边缘检测算子的图像处理边缘检测技术提取雷达剖面中的管线,选择非局部均值去噪(NL-means)代替高斯模糊,并使用改进型算子代替Roberts算子,通过该技术识别的同相轴更加清晰、显著,使其能够更加适用于雷达剖面的管线识别,能够进一步提高管线识别的精度与工作效率,为地下管线的自动追踪、自动成图作铺垫。
The underground pipeline is called the lifeline of the city,and it is very important for the planning,construction and management of the city.We usually use ground penetrating ground penetrating radar to detect the specific location of underground pipelines.The non-excavation and easy operation features of ground penetrating ground penetrating radar can greatly reduce the workload and save field costs.However,the interpretation of the geological ground penetrating radar profile requires more High expertise and experience in geophysical prospecting have caused certain obstacles to efficient production.For this reason,this paper uses image processing edge detection technology based on Canny edge detection operator to extract the pipeline in the ground penetrating radar profile.This paper chooses non-local mean denoising(NL-means)instead of Gaussian blur,and uses an improved operator instead of Roberts operator.The in-phase axis identified by this technology is clearer and more conspicuous,making it more suitable for pipeline identification in ground penetrating radar profiles,further improving the accuracy and efficiency of pipeline identification,and paving the way for automatic tracking and automatic mapping of underground pipelines.
作者
时煜姝
SHI Yushu(Shanghai Surveying and Mapping Institute,Shanghai 200063,China)
出处
《测绘通报》
CSCD
北大核心
2020年第S01期127-130,154,共5页
Bulletin of Surveying and Mapping
关键词
地下管线
雷达剖面
图像处理
underground pipeline
ground penetrating radar profile
image processing
