关键词: 力触觉再现, 三维重建, 模型平滑, B样条, 网格细化

Abstract:

To fulfill the reality and accuracy requirements of 3D model for haptic rendering,which is reconstructed from medical images,this paper proposes a B-spline curve based smoothing method and a mesh refinement method.The former uses the original contour points as control vertices to generate the B-spline curve for model smoothing.The latter utilizes the nearest point searching and interpolating method to refine the triangle meshes for 3D liver reconstruction.Experiments validate and prove that the presented methods can improve the quality of the 3D liver model reconstruction and enhance the performance of haptic rendering system.

Key words: haptic rendering;3D reconstruction;model smoothing;B-spline;mesh refinement