透视投影为三维图形显示的基础，在此基础上提出了一种基于透视投影矩阵的数学模型．可方便地将空间三维坐标转换为透视投影坐标，并实时地在屏幕上展现出来．并以三维数据的透视投影为例，显示了经过该透视变换后的透视图，验证了该方法的有效性．-Perspective projection of three-dimensional graphics based on this based on the perspective projection matrix based on a mathematical m

本文档主要用于图像的倾斜矫正，通过建立透视变换矩阵和强角点检测实现畸变图形的矫正(This document is mainly used for Image tilt correction, through the establishment of perspective transformation matrix and strong corner detection, to achieve distortion correction)