Boundary expansion: An hidden surface removal method based on boundary detection for discrete points

This paper analyzes the traditional hidden surface removal methods and makes a comparison. And for the discrete spatial points, it proposes a new approach to remove the hidden line/surface. Then describe the idea, main steps and every methods used in each step in details. Thus, the boundary detection which learns from the edge detection algorithm comes into being. Finally, the experimental result testifies the availability of this algorithm.