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In this paper, we propose a new method to construct graphical representations of cortical folding patterns by computing skeletons on triangulated cortical surfaces. In our approach, a cortical surface is first partitioned into sulcal and gyral regions via the solution of a variational problem using graph cuts, which can guarantee global optimality. After that, we extend the method of Hamilton-Jacobi skeleton  to subsets of triangulated surfaces, together with a geometrically intuitivedoi:10.1109/tmi.2007.913279 pmid:18450539 pmcid:PMC2754588 fatcat:6ibv3kci6jd7nnv6fkyk4n2tmm