多相机测量系统在测量曲面结构及提高测量精度方面具有独特的优势, 得到了越来越广泛地应用。系统中相机的分布形式决定了多相机系统的适用对象、便捷程度以及测量成本。文中对不同标定方法下多相机系统中相机的分布形式进行了研究。推导了三种不同分布形式下多相机系统中相机数量跟测量视场的关系, 分析并比较了不同形式下的优缺点。结果表明, 基于近景摄影测量标定的多相机测量系统所需的成本更低, 不依赖立体视觉子系统视场的重叠, 系统的安装布置更为灵活方便。

Multi-camera measurement system has advantages in measuring curved surface structures and improving the measurement accuracy, which is widely applied in many fields. The application field, portable degree and measurement cost are determined by the distribution form of cameras in the system. The distribution forms of cameras in multi-camera systems under different calibration methods are researched. The relationship between the number of cameras and the measurement field of view (FoV) in three different distribution forms is derived. Both advantages and disadvantages of different forms are analyzed and compared. The results show that the cost of the multi-camera measurement system based on close-range photography calibration method is lower. Moreover, the overlapped area of FoV between stereo vision sub-system is no longer necessary, which makes the installation and arrangement of the multi-camera system more flexible.