Synoptical and climatological analysis of snowfall from 1980 to 1994 in Beijing area

北京1980～1994年降雪的 天气气候分析

And then elements of exterior orientation is calibrated accurately using synoptical conversion parameter by bundle calibration or analytical calibration .

通过解析法或光束 法对相机外参数用 初值进行精确标定。

The paper puts forward a method to calculate quickly synoptical elements of exterior orientation by three control points .

提出了利用3个 不 共线的控制点 对 相机外 参数 近似 值进行快速求解的一种方法。

Based on perspective azimuthal projection a synoptical formula has been set forth in this report by using concluding methods .

文章在透视方位投影的基础上，应用归纳方法，提出方位投影的一个 概略公式。