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在摄像机网络摄像测量中,经常会用到多目传递站进行相邻节点间位姿关系的传递。针对多目传递站中固连的多个摄像机之间位姿关系的标定难题,提出了一种基于冗余标定的优化标定方法。首先,对多目传递站中的独立位姿关系数目、最大可测量位姿数目、最小约束数目等进行了分析和推导;然后,对典型的四目传递站间各摄像机相对位姿关系的优化标定算法进行了阐述,对一般的多目传递站位姿参数的标定问题给出了通用的优化方法;最后,对四目传递站的优化算法进行了数值仿真,仿真结果证明了优化算法的可行性与有效性。
In the camera network camera measurement, often use the multi-purpose transfer station for the transmission of the pose relationship between adjacent nodes. Aiming at the problem of calibration of the pose relationship between multiple cameras fixedly connected in a multi-purpose transmission station, an optimal calibration method based on redundant calibration is proposed. Firstly, the number of independent pose relationships, the maximum number of measurable pose and the minimum number of constraints in the multi-purpose transfer station are analyzed and deduced. Then, the relative pose and posture of each camera in a typical four-head transfer station is optimized Calibration algorithm. The general optimization method is given for the calibration problem of general multi-purpose transmission station. Finally, the optimization algorithm of the four-head transmission station is simulated. The simulation results show that the optimization algorithm is feasible Sexuality and effectiveness.