基于异面交会模型的立体视觉像机站位优化研究

Study on the Camera Stations′Optimization of Stereoscope System Based on Plane Intersection Model

高精度的摄影测量中,双目视觉测量是一种高效可行的测量方法。为了研究测量中双像机位置关系对测量结果的影响,将像机标定、定向及图像坐标提取等干扰因素作为理想量来考虑,从双像机交会测量的数学模型出发,综合双像机光轴的交会角、像机视场角以及红外发光二极管(LED)的发光角等方面因素,通过分析双像机在不同位置关系下对测量区域中红外LED控制点进行测量的结果及精度,最终给出双目视觉测量中像机站位的优化策略。

In the high-precision photogrammetric, binocular vision measurement method is an efficient and feasible method. In order to explore the effect of the location relationship between cameras on measurement results, the interference factors such as camera calibration, orientation and image coordinate extraction are considered as ideal values. From the perspective of mathematics model of interchange measurement the measurement results and accuracy are analyzed through combining the main factors such as the camera field angle, merging angle and radiant angle of infrared light emitting diode （LED）. It ultimately gives the stations optimization strategy by analyzing the measuring results and accuracy of the infrared LED in the measurement area which are fixed as control points at various locations between the cameras.