柔軟物体の適応的四面体ボリュームメッシュのオンラインリメッシュ法(「ハプティックインタラクション」特集)

抄録

Surgical training systems are needed for practices of surgical tasks. In such systems, shapes and deformations of soft objects must be fast calculated correctly to get realistic simulations. Generally triangles or tetrahedra, which are mesh elements, are used to represent virtual objects. However, when the number of mesh elements increase, the calculation time also increase. Moreover, we need much time if meshes are reassembled from the beginning, when we want to represent meshes according to deformations of virtual objects and interactions of virtual surgical tools. In this paper, we propose the algorithm for online remeshing of tetrahedral adaptive mesh. It allows fast dynamic structural modifications of tetrahedral adaptive mesh, according to stretch ration of edges of tetrahedra.