摘要
应用摄影测量中的解析算法,研究倾斜摄影和交向摄影中大角度摄影情况下的解算方法对经典解析算法的影响,推导大角度摄影情况下从相对定向至绝对定向这一解析过程的算法,通过算例证明在大倾角摄影条件下利用该算法能够准确计算出地面点坐标以及反算出像片的外方位元素,从而验证本算法在大倾角近景摄影测量中的适用性。
The influence of big rotation angles on the classical solution of analytical process is studied. Closerarlge photogrammetry differs from traditional aerial photogrammetry, for the former usually adopts oblique pholpgraphy or convergent photography, while the latter is similar to take vertical photos wherein the orientation elements are very small. An exploration of the algorithm in every step of the analytical process from de pendent relative orientation to absolute orientation is described. A simulated close range photogrammetry experiment is presented to demonstrate this new algorithm. Through this example, it is pointed that with this new algorithm, the coordinates of the ground points and the exterior orientation can be accurately calculated. The re sults indicate that the algorithm deduced in this paper is applicable in the close range photogrammetry with big rotation angle.
出处
《测绘学报》
EI
CSCD
北大核心
2008年第4期458-463,468,共7页
Acta Geodaetica et Cartographica Sinica
基金
山东省基础地理信息与数字化技术重点实验室开放基金项目(SD060813)
国家高技术研究发展计划(863计划)项目(2007AA12Z178)
关键词
大旋转角
共线方程
共面方程
外方位元素
big rotation angle
collinearity equation
coplanarity equation
exterior orientation
