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流域变换建模及其算法研究的新进展

DOI: 10.11834/jig.20030107

Keywords: 流域变换,图象分割,集水盆,分水岭,浸没,地形学距离

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Abstract:

流域变换是数学形态学中用于图象分割的一种经典方法.虽然流域变换曾因运算量大、效率低而使得其研究工作遭到冷遇,但也因此出现了一些新的理论和算法,并随着并行手段的引入,又使其重新成为研究的热点;同时就近期许多研究成果而言,形式化模型的多样性,使得流域变换的定义、算法和实现,尚缺乏统一的描述和全面的总结.针对这一情况,首先给出了连续域流域变换的严格数学模型和两种离散情况下典型的形式化定义;然后分类总结了近年来,流域变换算法实现的新进展;最后提出了有待进一步研究的问题.

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