边界提取和几何不变性相结合的标定方法研究  

The calibration of camera via boundary extraction and geometric invariance

作　　者：周彬[1] 乔宝明[1] 

机构地区：[1]西安科技大学理学院,陕西西安710054

出　　处：《纯粹数学与应用数学》2011年第5期694-697,共4页Pure and Applied Mathematics

基　　金：陕西省教育厅科研计划项目(11JK0504)

摘　　要：通过边界提取和几何不变性研究一种新的快速标定方法.首先设计了一个基于阈值的边界提取算法用于获得物体相片的轮廓;然后给出了标定过程中关于几何不变性的几个命题,并用于确定充分多的输入输出对应关系;最后建立了一个非线性优化问题求解视觉系统.数值求解结果显示了本文方法的准确性和有效性.This paper presents an approach on calibration of camera via boundary extraction and geometric invariance. First, a threshold-based algorithm is applied to extract the boundary of the photo. Second~ several geometric invaxiances axe introduced in several propositions. Then abundant mappings can be determined. Finally, a nonlinear program is proposed to determine the camera system. The accuracy and efficiency of our method are shown in several numerical experiments.

关 键 词：标定 边界提取 几何不变性 非线性最优化 

分 类 号：O29[理学—应用数学] TN911.7[理学—数学]