论文标题

离散摩尔斯的功能和流域切割的梯度矢量场

Gradient Vector Fields of Discrete Morse Functions and Watershed-cuts

论文作者

Boutry, Nicolas, Bertrand, Gilles, Najman, Laurent

论文摘要

在本文中,我们研究了一类来自离散的摩尔斯理论的离散摩尔斯函数,这些功能等同于来自数学形态的一类简单堆栈。我们表明,与离散的莫尔斯理论一样,我们可以将简单堆栈的梯度向量字段(视为离散函数)视为我们应该考虑的唯一相关信息。最后但并非最不重要的一点是,我们还表明,简单堆栈的双图的最小跨越森林是由初始函数的梯度向量场诱导的。该结果允许从梯度矢量场计算流域切割。

In this paper, we study a class of discrete Morse functions, coming from Discrete Morse Theory, that are equivalent to a class of simplicial stacks, coming from Mathematical Morphology. We show that, as in Discrete Morse Theory, we can see the gradient vector field of a simplicial stack (seen as a discrete Morse function) as the only relevant information we should consider. Last, but not the least, we also show that the Minimum Spanning Forest of the dual graph of a simplicial stack is induced by the gradient vector field of the initial function. This result allows computing a watershed-cut from a gradient vector field.

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