基于无人机倾斜摄影的虚拟施工放样方法探讨

Discussion on Virtual Construction Setting out Method Based on UAV Oblique Photography

利用无人机倾斜摄影测量能够获取精确的实景三维模型,通过将工程结构物设计模型或特征点、线匹配至实景三维模型来实现设计结构物的施工测量虚拟放样。本文介绍了虚拟放样方法的基本原理及应用领域,基于无人机倾斜摄影的虚拟施工放样方法将大量复杂的野外测量作业转换为室内作业,可实现快速对施工结构物进行施工前的地形核查和施工过程中的测量检核,提高结构物检测效率,降低测量人员在桥梁、高边坡等高空检测作业的安全风险,是传统结构物检核测量放样方法的一种有效补充形式。

The use of UAV oblique photogrammetry can obtain accurate real scene 3D models,and achieve virtual setting out of construction measurement for designed structures by matching engineering structure design models,feature points and lines to real scene 3D models.This paper introduces the basic principle and application field of virtual setting out method.The virtual construction setting out method based on UAV oblique photography converts a large number of complex field survey operations into indoor operations,which can quickly carry out terrain verification before construction and survey verification during construction,improve the detection efficiency of structures,and reduce the safety risk of surveyors in high-altitude detection operations such as bridges and high slopes.It is an effective supplement to the traditional structural inspection,survey and setting out method.