基于单像的三维几何信息量测

3D geometric information measurement based on a single image

为快速获取城市规则建筑物的三维几何信息,以经典摄影测量原理为基础,研究并实践了单像立体量测方法。结果表明:对获取的城市大倾角、高分辨率单张影像,通过该方法,结合城市规则建筑物已有的二维地理信息(如建筑物底座某一边的实际长度),可量测出城市规则建筑物的三维几何信息。实验证明其精度可行,对三维数字城市建设具有一定的参考价值。

For the rapid acquisition of 3D geometric information of city regular buildings,based on the classics photographic survey principle,the single three-dimensional measurement methods is studied and practiced.The results show that with a single image of urban angle and high resolution,by this method,combing 2D geography information of the city's regular buildings(such as the actual length of the buiiding's base side),can measure the 3D geometric data of the city regular building can be measured.Experiments prove that its accuracy is feasible, and has the certain reference value to the construction of three-dimensional digital city.