基于正方体和圆环点的摄像机线性自标定方法  

Cubic and Circular Points Based Camera Linear Self-calibration

作　　者：禹旺勋[1] 王爱菊[2] 

机构地区：[1]昆明理工大学津桥学院工学系 [2]云南师范大学商学院会计学院

出　　处：《商情》2014年第44期167-168,共2页

摘　　要：本文提出了基于圆环点的摄像机自标定方法。该方法要求摄像机从3个或多个不同的方位摄取正方体的图像。根据射影几何调和共轭和交比不变的性质，求出3条相交边灭点的坐标．由3组两两垂直得到三组正交灭点，从而线性的求出摄像机的5个内参数。模拟图像实验表明，该方法原理简单，并有较高的求解精度。The paper proposed a technique for calibrating based on circular points. The approach only requires cam- era to take 3 or more figures from different orienta- tions. According to conjugate harmonicand cross-ratio invariant properties in projective geometry, the vanish- ing points on edges are solved. According to orthogonal relationships of diameters can get three groups orthogo- nal vanishing points, thus intrinsic parameters are solved linearly. Computer real experiment prove the fea- sibility and the robustness of this approach.

关 键 词：自标定 圆环点 正方体 摄影几何 

分 类 号：O175.1[理学—数学]