基于已有资料的倾斜摄影实景建模及BIM应用

Oblique Photography Real Scene Modeling and BIM Application Based on Existing Data

针对交通BIM应用场景中常遇到的BIM工程模型与倾斜摄影实景模型位置匹配不精准问题,深入分析路桥隧BIM模型和实景模型创建时所依据的地理信息资料情况,本文通过构建图形图像数据集改变传统像控点获取方式和实景建模流程,提出基于已有资料创建实景模型的方法,并在重庆市某高速公路改扩建工程BIM技术应用项目中进行了试验。结果证明了本文方法的可靠性和快速性,能够满足BIM模型和实景模型结合的相关规范要求。

Aiming at the problem of inaccurate location matching between the BIM engineering model and the oblique photography real scene model frequently encountered in the application scenarios of traffic BIM,this paper analyzes the geographical information data based on which the BIM model and real scene model of road,bridge and tunnel are created.This paper proposes a method to create a real scene model based on the existing data by building a graphic and image dataset to change the traditional image control point acquisition method and the real scene modeling process.The method is tested in the BIM technology application project of a highway reconstruction and extension project in Chongqing.The results show that the method is reliable and fast,and can meet the relevant specification requirements of the combination of BIM model and real scene model.