基于普通数码相机定向元素的解算

Solution of directional element based on general digital camera

针对普通数码照相机无法直接测定基线分量BX、BY、BZ和拍摄轴方位参数ω、φ、κ及获取的数字影像对进行内定向时无框标的问题,给出共线方程解算内定向元素的方法;以沙盘模型为观测对象,对观测对象特点的坐标计算进行了试验,得出了可行的试验数据;同时,还给出了在实验室条件下,实验的控制点布置原则、实验数字影像对图片、实验数据和结论.

To the problem what baseline＇s heft Bx, Br, Bz and screen-axis＇ parameter ω、φ、κ had not been assured and digital twin-image had no frame-sign on normal digital camere, this paper introduced using common-line equation to calculate the element of inner direction. When the normal digital-camera was carried by lower aircraft, the problem to baseline＇s heft BX was not assured, and the arithmetic was put forward by using baseline length to calculate the element of relatively directional element, also showing mathematics model. In addition the paper afforded collocation＇s principle about control point, experiment＇s photo, experiment＇s date and conclusion.