精密三维建模贴近摄影技术研究

Research on precision 3D modeling close-up photography technical

通过对山体地质露头、岩体剖面开展高精度倾斜摄影和贴近摄影采集技术研究,探索出一套从成果精度指标理解、性能匹配的硬件配置、功能适应的软件选择、满足要求的静态控制网建立、岩壁像控点精密测量、露头剖面精细航线规划,到复杂环境下无人机控制措施应用等针对性的技术路线,成功实现航测采集分辨率2 mm以内、三维实景模型相对精度1 cm以内的目标。

In order to obtain the resolution within 2mm of the geological outcrop section and three-dimensional scene model results within 1cm of the relative accuracy by close-up photography.In this paper,the acquisition technology research of high-precision oblique photography and close-up photography on typical mountain cross-section is carried out.A set of targeted technical solution route was explored including precision indicators meaning,performance-matched hardware configuration,software selection for functional adaptation,meet the requirements of the static control network,precise measurement of image control points on rock wall sections,outcrop profile fine route planning,application of UAV control measures in complex environment,precision 3D scene modeling for oblique photography and close-up photography,quality control of model precision,the expected goal was achieved successfully.