无人机倾斜摄影测量在三维模型测图中的应用

针对传统大比例尺测图存在人工成本高、外业工作量大、效率低等问题，本文提出了通过无人机倾斜摄影测量，利用ContextCapture进行实景三维建模，运用PSG软件实现裸眼三维测图的方法。以湖南省桂阳县欧阳海镇为例，进行了1：500大比例尺地籍测图，并对精度进行了验证。结果表明，检测点平面位置中误差为0.046 m，检测点高程中误差为0.048 m，小于规范要求的0.05 m。综上所述，成果满足1：500地籍测图精度要求，该方法能够提高测图作业的效率。

Application of UAV tilt photogrammetry in 3D model mapping

Considering the high labor cost, heavy work intensity and low efficiency of the traditional measurement procedures, this paper presents a naked-eye 3D mapping method based on UAV tilt photogrammetry. The ContextCapture is used to model the 3D scene, based on which the topographic map is drawn by using PSG software in a naked-eye 3D environment. A real-world case study in Ouyanghai town, Guiyang county, Hunan province is used to demonstrate the effectiveness of the proposed method. A 1:500 large-scale cadastral mapping is carried out and the accuracy is verified. The errors in horizontal and elevation are 0.046 m and 0.048 m, respectively, which are less than 0.05 m required by the code. Therefore, the proposed method in this study can produce results which satisfy the accuracy requirements of 1:500 scale cadastral mapping and improve the efficiency.