一种综合景物垂直性约束的自定标算法  

An algorithm for auto-calibration with scene orthogonality constraints

作　　者：刘勇[1] 吴成柯[1] 陈泽志[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验到,陕西西安710071

出　　处：《西安电子科技大学学报》2002年第6期729-732,790,共5页Journal of Xidian University

基　　金：国家自然科学基金资助项目(69972039);香港RGCGrant支持(CUHK4402/99E)

摘　　要：考虑到建筑物中普遍存在的平面正交性,将其作为相机自定标的新约束,该约束条件和以往基于相机的约束条件相结合可以使得所求解的绝对二次曲面的欧式特性得到满足,所重建的三维景物更符合实际.该方法的有效性在仿真数据和真实图像数据实验中得到验证.The plane orthogonality, a comon prior knowledge in most buildings, is considered to form a new constraint on autocalibration equations. A corresponding algorithm is proposed to find the absolute quadric which is close to the practical one. The orthogonalities of the 3D reconstructed scene are satisfied. Furthermore, the robustness of the autocalibration algorithm to the camera critical motions is greatly improved. The effectiveness of our approach is evaluated by the experiments with simulated data and real image sequences.

关 键 词：垂直性约束 自定标 三维重建 景物约束 建筑物 相机 计算机图像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TN9[自动化与计算机技术—计算机科学与技术]