基于倾斜摄影测量技术的实景三维建模及精度评估

摘要

In order to solve the low efficiency of the traditional 3D modelling,workload,the high cost and poor performance effect of the real landform,it puts forward a kind of three dimensional true modelling methods.First,it explain the basic principle of oblique photography,the technology process of 3D true modelling and technical characteristics.Second,it introduce the whole production process for Qingyuan 3D true modelling.Finally,it evaluate model of plane and vertical accuracy.The experiment proved it can truly show the landform automatically and greatly increase production efficiency under the corresponding scale national surveying and mapping accuracy requirement specification.%为了解决传统三维建模效率低、工作量大、费用高、不能很好地反映真实地物地貌等问题，提出了一种基于倾斜摄影测量技术的实景三维建模方法：首先阐述了倾斜摄影成像的基本原理、实景三维建模技术流程及技术特点；其次，以清远市实景三维建模为实例，介绍了整个生产过程；最后对模型的平面和高程精度分别进行评估。实验证明该方法在满足相应比例尺国家规范的测绘精度要求下能够完全反映真实地物地貌，可全自动化生产，大大提高了生产效率。