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资源三号卫星影像中线性目标的检测技术

DOI: 10.6046/gtzyyg.2014.02.06, PP. 33-37

Keywords: 卫星影像,线性目标检测,平行线对,Hough变换,Freeman链码

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Abstract:

为了有效地进行高分辨率图像中线性目标的检测,提出一种基于Freeman链码的改进型Hough变换算法。首先,对图像进行增强和滤波处理,采用基于灰度一致化的方法对图像进行区域分割;然后,利用Freeman编码提取目标区域的边界;最后,对链码数据进行Hough变换,检测出平行线性结构。实验结果证明:该算法能有效地提取图像中平行线性目标,将其应用于资源三号卫星影像道路网目标的识别中,准确率高且实时处理性好。

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