公路标识线自动识别中的图像处理及中心线提取方法  

Image Processings and Center Line Extraction in Identification of Marker-line for Road

作　　者：陈刚[1] 陈鲁倩[1] 陈坤杰[1] 

机构地区：[1]南京农业大学,南京210031

出　　处：《机电一体化》2010年第1期37-39,65,共4页Mechatronics

基　　金：江苏省农机局科研基金资助项目(GXZ05011)

摘　　要：提出一种公路标识线图像的处理及中心线提取方法。首先采用CCD图像传感器获取公路标识线图像,然后对图像进行动态中值滤波、阈值法分割、边缘检测等处理,最后采用最小二乘法提取标识线的中心线。实验表明,动态中值滤波可以显著减少图像噪声,同时又保留了大部分的图像边缘信息。采用最小二乘法能准确、有效提取标识线的中心线,为将来利用标识线的中心线信息来引导道路画线车自动喷涂作业解决了一个关键技术难题。The objective of this study was to develop an image processing method which could be used to process the images of marker-line for road. The images of marker-line were selected through a CCD sensor. Then imge processings such as adjustable median tilting, thresholding segmentation and edge identification were conducted on the selected images. Finally, the least square method was employed to extract the center line of marker-line for road. Results showed that the noises of an image of marker-line for road were significantly decreased and most of edge information of the marker-line was remained after the adjustable median tilting. The center line of marker-line for road could be extracted by using the least square method, indicating that the precent methods was efficient and robust in processing images of marker-line for road.

关 键 词：CCD 特征信息 图像处理 标识线 

分 类 号：U418.4[交通运输工程—道路与铁道工程] TP391.41[自动化与计算机技术—计算机应用技术]