1. A system using a processor for generating a curvature adapted isosurface based on Delaunay triangulation comprising: an initial mesh generation module for generating an initial mesh by receiving implicit function data; a curvature geometry module for receiving the initial mesh from the initial mesh generation module, calculating a directional curvature of a curved surface, generating a Delaunay vertex set used for Delaunay triangulation, and calculating an implicit function value to update the implicit function data for the Delauney vertex set; a space division module for generating Delaunay triangulation information by performing Delaunay triangulation based on the generated Delaunay Vertex set from the curvature geometry module; and a final mesh extraction module for receiving the generated Delaunay triangulation information from the space division module and the three-dimensional implicit function data updated at the curvature geometry module, and extracting a final mesh from the received three-dimensional implicit function data.