Hamilton-Jacobi Equations on a Manifold and Applications to Grid Generation or Refinement
Hamilton-Jacobi Equations on a Manifold and Applications to Grid Generation or Refinement
复制标题
流形上的 Hamilton-Jacobi 方程及其在网格生成或细化中的应用
DOI:
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发表时间:
2001
影响因子:
3.1
通讯作者:
M. Rascle
中科院分区:
文献类型:
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作者:
P. Hoch;M. Rascle
In this paper, we consider Hamilton--Jacobi equations on a manifold, typically on the graph of some previously computed function z(x,y), and we show how the corresponding level set method allows us to generate and/or to refine a mesh in regions where this function z has large derivatives. Such as it is, the method needs to be strongly improved and accelerated, but the principle is awfully natural, and in principle the method is fully automatic. Similar ideas are also useful in image processing, in particular for the active contours method.