南京大学学报(自然科学版) ›› 2015, Vol. 51 ›› Issue (5): 10391048.
袁 敏1,2,3,肖鹏峰1,2,3*,冯学智1,2,3,张学良1,2,3,胡永月1,2,3
Yuan Min1,2,3, Xiao Pengfeng1,2,3*, Feng Xuezhi1,2,3, Zhang Xueliang1,2,3, Hu Yongyue1,2,3
摘要: 针对面向对象变化检测存在的多时相对象边界不一致的难题,基于计算机视觉领域的多视图像协同分割思想,提出一种面向多时相高分辨率遥感图像变化检测的协同分割方法。首先对多时相遥感图像进行协同处理,利用多时相信息发现变化特征,以光谱变化为指标,获得变化强度图,进而在变化强度图的引导下,结合各时相的图像自身特征进行分割,通过能量函数的构建和优化,直接生成边界准确、空间对应的多时相变化对象。利用两个时相的高分辨率航空图像进行实验表明,该方法可以较完整准确地分割出变化对象,通过建立其空间对应关系,能清晰地表达对象的变化过程,为高分辨率遥感图像面向对象变化检测提供了新思路。
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