关于透视变换的研究

摘要

针对透视图形变换中“二点透视图、三点透视图是经过旋转平移方法获得的”的提法进行了研究，认为该提法获得的透视图与二点透视、三点透视的基本概念不相符，实际是属于一点透视下二个灭点、三个灭点的透视图.文中分别给出二点透视图和一点透视下二个灭点的透视图，并进行了论证.%Some graphics literature gives the definition of two-point and three-point perspective view, and generates these views by means of rotation and translation. These concepts are misleading. The real situation is, they are two vanishing points and three vanishing points view under one point perspective transformation. This paper gives the explanation.