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The fast marching method is a numerical method for solving boundary value problems of the Eikonal equation: : Typically, such a problem describes the evolution of a closed curve as a function of time with speed in the normal direction at a point on the curve. The speed function is specified, and the time at which the contour crosses a point is obtained by solving the equation. The algorithm is similar to Dijkstra's algorithm and uses the fact that information only flows outward from the seeding area. This problem is a special case of level set methods. More general algorithms exist but are normally slower. Extensions to non-flat (triangulated) domains solving: :: was introduced by Ron Kimmel and James Sethian. Image:Fast_marching_maze.png| Maze as speed function shortest path Image:Fast_marching_multi_stencil_2nd_order.png|Distance map multi-stencils with random source points ==See also== * Level set method 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「fast marching method」の詳細全文を読む スポンサード リンク
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