哈苏H4D-60相机投影中心位置精确测定方法研究

A New Metrical Method Which can Get the Precise Position of the Projective Center about Hasselblad H4D-60 Camera

提出了一种精确测定数码相机投影中心位置的方法,详细介绍了其工作原理和实施方法。利用Metro In经纬仪三坐标测量系统和Metro In-DPM数字工业摄影测量系统的高精度测量特点,提高了控制点坐标测量精度、控制点标志中心像点坐标量测精度并实现了相机的高精度标校。在一个试验里完成了高精度相机标校和投影中心位置精确测定,实现的投影中心位置测定精度优于5 mm。

A new metrical method which can get the precise position of the projective center about Hasselblad H4D-60 Camera was proposed in this paper. The composition and the working principle of the system were introduced in detail. The system can make full use of the Metro In 3D coordinate measurement system and the Metro In_DPM digital industrial photogrammetry system to set up a good measurement environment. The high precision camera calibration, together with improving the coordinate measurement accuracy of control point and the center of the mark image, can reduce the measurement error. The camera calibration and the projective center of the camera can be completed in one test. The accuracy is better than 5 mm.