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基于双阈值SSDA模板匹配的遥感图像道路边缘检测研究

DOI: 10.6046/gtzyyg.2014.04.05, PP. 29-33

Keywords: 遥感图像,道路边缘,序贯相似性检测算法(SSDA),双阈值

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Abstract:

利用遥感图像提取道路边缘信息可以简化常规城市道路的测绘工作。根据一般道路在图像上的影像特征对图像进行模型化处理,提出了基于双阈值的序贯相似性检测算法(sequentialsimilaritydetectionalgorithm,SSDA)的模板匹配算法,并在该算法的基础上,提出了一个基于减小增长误差的算子,用以减少由于样本数过多而产生的增长误差。与其他算法相比,该算法能够更有效地获取道路边缘信息,在准确提取路面边缘信息的同时,能对预处理中难以完全提取的路面部分进行修复,减少处理过程,从而提高处理效率。

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