基于LSD算法的无人机影像电力线提取方法
|
摘要
根据无人机影像电力线的特征,利用LSD算法实现了电力线的自动提取。首先使用各向同性的Sobel算子对特征区域进行图像增强,再使用LSD算法进行线段提取,然后通过线段合并和线段拟合过滤线段集合,最后使用K均值算法进行聚类,筛选得到最终电力线结果。采用多种地物背景下的电力线影像进行实验,结果表明,该方法能提取完整的电力线,稳健性强,对电力巡线具有较大的实际意义。
In this thesis, according to the features of UAV image powerline, we proposed a powerline extraction method based on LSD algorithm. Firstly, we used horizontal Sobel operator to enhance the edge in the area, and then used LSD algorithm to extract line set. Finally, we used the line angle and line position to filter line set, and adapted K-means algorithm for clustering to determi ne the result. The experimental result shows the method can extract the powerline exactly under different background.
In this thesis, according to the features of UAV image powerline, we proposed a powerline extraction method based on LSD algorithm. Firstly, we used horizontal Sobel operator to enhance the edge in the area, and then used LSD algorithm to extract line set. Finally, we used the line angle and line position to filter line set, and adapted K-means algorithm for clustering to determi ne the result. The experimental result shows the method can extract the powerline exactly under different background.
引文
[1]叶岚,刘倩,胡庆武.基于Lidar点云数据的电力线提取和拟合方法研究[J].测绘与空间地理信息,2010(5):30-34
[2]贾俊红,梁静,吕水生.从机载激光雷达数据中提取电力线研究进展[J].河南科学,2013,31(10):1 671-1 674
[3]YAN G J,LI C Y,ZHOU G Q,et al.Auto-matic Extraction of Power Lines from Aerial Images[J].IEEE Geoscience and Remote Sensing Letters,2007,4(3):387-391
[4]LI Z R,LIU Y,Walker R,et al.Towards Automatic Power Line Detection for a UAV Surveillance System Using Pulse Coupled Neural Filter and an Improved Hough Transform[J].Machine Vision and Applications,2010,21(5):677-686
[5]Von Gioi R G,Jakubowicz J,Morel J M,et al.LSD:a Line Segment Detector[J].Image Processing on Line,2012(2):35-55
[6]汪林,王燕午,王琳,等.基于无人机的航空影像电力线提取方法的研究[J].城市勘测,2013(3):92-95
[7]Burns J B,Hanson A R,Riseman E M.Extracting Straight Lines[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,1986,8(4):425-455
[2]贾俊红,梁静,吕水生.从机载激光雷达数据中提取电力线研究进展[J].河南科学,2013,31(10):1 671-1 674
[3]YAN G J,LI C Y,ZHOU G Q,et al.Auto-matic Extraction of Power Lines from Aerial Images[J].IEEE Geoscience and Remote Sensing Letters,2007,4(3):387-391
[4]LI Z R,LIU Y,Walker R,et al.Towards Automatic Power Line Detection for a UAV Surveillance System Using Pulse Coupled Neural Filter and an Improved Hough Transform[J].Machine Vision and Applications,2010,21(5):677-686
[5]Von Gioi R G,Jakubowicz J,Morel J M,et al.LSD:a Line Segment Detector[J].Image Processing on Line,2012(2):35-55
[6]汪林,王燕午,王琳,等.基于无人机的航空影像电力线提取方法的研究[J].城市勘测,2013(3):92-95
[7]Burns J B,Hanson A R,Riseman E M.Extracting Straight Lines[J].IEEE Transactions on Pattern Analysis and Machine Intelligence,1986,8(4):425-455