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- 2016
光学遥感影像与GIS数据一体化的水体分割、配准与提取方法
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Abstract:
利用遥感影像进行自动化水体提取是一项富有挑战的任务。提出了一种GIS数据辅助下的可见光遥感影像水体自动提取方法，其核心是将影像分割、配准和变化检测集成为一体化处理流程检测水体。利用水体在遥感影像上的显著特性，首先提出了基于多尺度视觉注意模型的疑似水体区域检测；然后对影像显著区域进行水平集分割处理，通过迭代的分割和配准一体化处理不断优化直至获得最优的分割和配准结果，其中改进的形状曲线相似度特征用于约束分割结果与GIS水体对象的匹配；最后，利用基于缓冲区的变化检测方法获取变化和未变化的水体对象，同时利用已知水体辐射特征与GIS地物的空间位置关系剔除非水体对象。采用3组不同分辨率的遥感影像和不同尺度的GIS数据进行实验，结果显示了本文方法在水体自动提取和变化检测中的有效性
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