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土地利用现状图斑约束下的并行图像分割

DOI: 10.6046/gtzyyg.2013.04.26, PP. 160-165

Keywords: 土地利用动态遥感监测,均值漂移,MPI,分割参数

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Abstract:

针对土地利用动态遥感监测中存在的图斑边界提取问题,探索了将前时相的地类图斑的边界和土地利用类别作为先验知识约束分割过程的方法。该方法利用图斑的边界约束分割的空间范围,利用图斑的土地利用类别动态确定分割参数,是一种图斑边界控制的多参数分割方法。在此基础上利用多点接口(messagepassinginterface,MPI)并行分割策略加速分割处理流程,有效提高了分割速度。实验结果表明,该技术能够获得更高的分割精度,为后续的土地利用现状信息提取和土地利用变化检测奠定良好的基础。

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