Fast marching method
From Wikipedia, the free encyclopedia
The fast marching method is a numerical method for solving boundary value problems of the form:
Typically, such a problem describes the evolution of a closed curve as a function of time T with speed F(x) in the normal direction at a point x on the curve. The speed function is specified, and the time at which the contour crosses a point x is obtained by solving the equation.
An alternative to using a fast marching method is to use a level set method. The latter is more general, but runs slower.
