http://www.gissky.net- GIS空间站

以高精度数字表面模型为检测基础,通过智能识别处理手段对地面区域与非地面区域进行良好区分,发展出一种贪婪蛇型算法。该算法仅与搜索步距、方向旋转间隔以及重叠区域宽度等三个因素相关,具有速度快、效率高等优点。针对典型的城市区域进行镶嵌线检测试验,表明DSM辅助下的城区正射影像镶嵌线能很好地避开房屋等明显地表实体,并且贪婪蛇型算法能有效地进行最优路径检测。 更多还原

【Abstract】 Ground regional and non-ground area are accurately distinguished by processing high-precision DSM.Most of traditional seamlines detection algorithms are based on iterative calculations,and have high complexity.It is proposed a new algorithm named greedy snake algorithm.The new algorithm is only associated with three parameters: searching step,direction rotation interval and region width.Experiments for urban areas for orthophoto seamlines detection show that the seamlines can avoid buildings wel... 更多还原