顾及几何特征的遥感影像港口提取方法
首发时间:2012-11-02
摘要:针对传统高分辨率遥感影像中港口提取方法存在的缺陷,提出了一种高分辨率遥感影像中港口提取方法。主要包括以下流程:底层处理中,主要采用区域生长的方法,得到整个海域,从而得到海岸线。中层处理中,提取出海岸上的闭合轮廓。高层处理中,根据港口的面积,最小外接轮廓的几何特征,剔除河流等虚警,对于多港口的影像,根据距离进行同类港口的合并,得到最终港口提取结果。实验证明,本文的港口提取方法,相对于传统方法,具有鲁棒性高,提取的准确度高的特点。
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One Port Extraction Method Based on Geometrical Characteristic in Remote Sensing Image
Abstract:According to the defects of traditional port extraction method of high resolution remote sensing image,we put forward a process of port extraction of high resolution remote sensing images.The process is as follows,In the underlying processing,mainly uses the region growing method, get the whole area. In the middle-level processing, extract the closed contour of coastline. In the high-level processing,according to the geometrical characteristic of port area and minimum external outline, eliminate false alarm such as rivers. For image which contains many ports, according to the distance to merger the same port and get the extraction results.The experiments show that The method has the advantage of high robustness, high accuracy compared with the traditional method.
Keywords: Photogrammetry and remote sensing Remote sensing image Port extraction Geometric feature
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