图像中基本元素特征点的透视反求及实现  

Image feature points in basic elements of reverse perspective and implementation

作　　者：赵越[1] 吴初汉[1] 

机构地区：[1]云南大学数学与统计学院数学系,昆明650091

出　　处：《计算机工程与应用》2009年第29期184-186,201,共4页Computer Engineering and Applications

基　　金：云南大学中青年骨干教师培养计划专项经费资助项目;云南大学理(工)科校级科研重点项目(No.2003010)

摘　　要：利用透视图的形成原理,对一点透视、两点透视和三点透视的形成原理用矩阵表示的方法作了全面的阐述,并对这三种透视的形成原理进行反推,推导出透视反求的一种基本方法,利用这种基本方法反求出图片的一些特征点的坐标,然后用这些特征点的坐标来完成重建物体的三维模型,并以图像中面、体两种基本元素为例进行了验证。Using the perspective drawing formation principle,this paper makes comprehensive elaboration of one-point perspective,two-point perspectives and three-point perspectives formation principle with the matrix representation method,and infers one essential method to these three kinds of perspectives formation principle which the perspective reverses,uses this essential method to reverse the picture＇s some characteristic point coordinates,then completes the reconstruction object＇s three-dimensional model with these characteristic point coordinates and carries on the confirmation using the surface,the body,these two kinds of fundamental elements as examples.

关 键 词：计算机图形学 透视反求 一点透视 两点透视 三点透视 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]