多面体透视投影aspect　graph视空间的划分

Partitioning Viewpoint Space for the Aspect Graph of Polyhedral Objects Under Perspective Prejection

ａｓｐｅｃｔｇｒａｐｈ是用一组二维投影图表示三维物体的有效方法。本文讨论建立凸多面体透视投影ａｓｐｅｃｔｇｒａｐｈ视空间划分的有效算法。

The aspect graph is an approach of representing 3-D objects by a set of 2-D views in computer vision. This paper discusses the algorithm of partitioning the viewpoint space into regions,such that in each region the topological structure of the perspective projection of polyhedral objects does not change.