关键词: 表面重建, 切片级, 二次曲面, 表面轮廓方程, 型值点, 法矢

Abstract: Based on comparing surface rendering with direct volume rendering and slice-based with volume-based surface reconstruction of 3D objects and analyzing the work-flow of surface reconstruction,a method of calculating shape points which was easier to flexure of pipeline was presented.With this method,shape points were calculated by surface outline equation got from quadratic surface.Then these shape points were patched with triangles grid,which gained the pipeline surface model.Finally,the pipeline models were rendered by means of computer graphics in order to implement 3D pipeline surface reconstruction.At last,a reconstruction instance with Java3D was given.

Key words: 2D slice based, surface reconstruction, quadratic surface, surface outline equation, shape points, normal vector