表面方向的计算  

The Calculation of Surface Orientation

作　　者：程义民[1] 孙启彬[1] 

机构地区：[1]中国科学技术大学电工电子学教研室

出　　处：《中国科学技术大学学报》1989年第2期223-231,共9页JUSTC

摘　　要：本文描述了一种表面方向的计算方法,该方法是建立在成像设备一阶近似模型及射影几何的基础上的。用该方法,可由两个消影点,一个消影点,甚至无消影点(在一定条件下)求得表面方向。文中还推导出一组十分有用的公式并给出了计算机模拟的结果。An approach to the calculation of surface orientation is described in thispaper. This method is based on the model for first-order approximation ofimaging devices and projective geometry. The surface-plane orientation can becalculated from two vanishing points, or one vanishing point, or even withoutvanishing point (under certain condition). A set of useful formulas is derivedand the result of computer simulation is presented as well.

关 键 词：透视投影 平行线 消影点 表面方向 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]