基于GPS车辆数据和图像配准的道路中心线提取
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摘要
GPS车辆数据可提供详细的道路网信息,而它可能存在数据误差和冗余问题,可采用形态学处理中的细化操作得到近似道路中心线。针对细化操作得到的曲线弯曲度过大且存在孤立数据点、数据冗余等情况,以得到的近似道路中心线为基准线,利用霍夫变换获取图像配准的起始点,并结合图像配准得到平滑无冗余的道路中心线。以马鞍山车辆数据为例,实验结果表明,与细化操作相比,该方法在道路中心线提取质量上有了显著提高。
In view of the data errors and data redundancy of GPS vehicle data,this paper used the refinement operation of morphological processing to receive the approximate road centerline.There also existed some problems in the refinement operation like isolated data points,data redundancy and large curvature of the curve,etc.To solve this,based on the approximate road centerline,the paper used Hough transform to obtain the starting point of image registration,and combined the image registration to obtain the smooth road centerline without redundancy.Taking the Ma'anshan vehicle data for example,the result shows that this method has a significant improvement in the quality of the road centerline compared with the refinement method.
In view of the data errors and data redundancy of GPS vehicle data,this paper used the refinement operation of morphological processing to receive the approximate road centerline.There also existed some problems in the refinement operation like isolated data points,data redundancy and large curvature of the curve,etc.To solve this,based on the approximate road centerline,the paper used Hough transform to obtain the starting point of image registration,and combined the image registration to obtain the smooth road centerline without redundancy.Taking the Ma'anshan vehicle data for example,the result shows that this method has a significant improvement in the quality of the road centerline compared with the refinement method.
引文
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[2]ZitováB,Flusser J.Image Registration Methods:a Survey[J].Image and Vision Compu-ting,2003,21(11):977-1 000
[3]杨云,朱长青,张德.高分辨率遥感影像上道路中心线的半自动提取[J].计算机辅助设计与图形学学报,2007,19(6):781-785
[4]叶发茂,苏林,李树楷,等.高分辨率遥感影像提取道路的方法综述与思考[J].国土资源遥感,2006(1):12-17
[5]杨伟,艾廷华.基于众源轨迹数据的道路中心线提取[J].地理与地理信息科学,2016,32(3):1-7
[6]夏春林,张静,褚廷有.基于高分辨率城区遥感影像的道路半自动提取方法研究[J].测绘科学,2008,33(5):140-142
[7]周绍光,向晶,邱伟,等.基于高分辨率影像的道路中心线提取技术研究[J].国土资源遥感,2015(4):21-26
[8]JIN X Y,Davis C H.Automatic Road Extraction from Highresolution Multispectral IKONOS Imagery[C].IEEE International Geoscience and Remote Sensing Symposium,2003(3):1 730-1 732
[9]Poz A P D,Silva M A O,Iii W.Active Testing and Edge Analysis for Road Centre line Extraction[C].ISPRS Commission,2003(9):96-201
[10]Park S R,Kim T.Semi-automatic Road Extraction Algorithm from IKONOS Images Using Template Matching[C].The 22nd Asian Conference on Remote Sensing,Singapore,2001
[11]YUAN J,WANG D,Cheriyadat A M.Factorizationbased Texture Segmentation[J].IEEE Transactions on Image Processing A Publication of the IEEE Signal Processing Society,2015,24(11):3 488-3 497
[12]王振华,胡翔云,单杰.众源GPS浮动车数据中城市道路中心线分级提取的栅格化方法[J].测绘通报,2015(8):22-24
[13]蒋益娟,李响,李小杰,等.利用车辆轨迹数据提取道路网络的几何特征与精度分析[J].地球信息科学学报,2012,14(2):165-170