摘要
针对地形较大高差区域,采用单一航高获取多视影像数据构建实景三维模型存在模型粘连、狭窄底部扭曲,拉花无纹理等问题,提出空地融合的精细化实景三维重建方法。首先,使用飞马D200、D2000采集该测区的高分辨率多视影像数据;然后,使用精灵4RTK人工采集无人机难以获取的地物实景影像,再把所获取的影像数据输入到实景三维建模平台瞰景Smart 3D软件进行空三建模;最终获得符合项目要求的精细化实景三维模型。以某河谷测区为例,结果表明,本方法具有一定的技术可行性,可为类似工程提供技术参考。
In view of the large elevation difference of terrain and the problems of model adhesion,narrow bottom distortion and no texture in the construction of 3D model by using a single aerial height acquisition image,we proposed a refined real scene 3D reconstruction method of air ground integration.Firstly,we used Pegasus D200 and D2000 to collect the high-resolution image data of survey area.Then,we used the Wizard4 RTK to manually collect the real image of the ground object whichwasdifficult to obtain by the UAV,andinputtedthe obtained image data into Smart 3D software for aerotriangulation and modeling.Finally,we gained the refined real scene 3D model meeting the requirements of project.Taking a river valley survey area for example,the results show that this method has certain technical feasibility and can be offered as technical reference for similar projects.
作者
沈吉宝
SHEN Jibao(Gansu Institute of Surveying and Mapping Engineering,Lanzhou 730000,China)
出处
《地理空间信息》
2023年第8期114-117,共4页
Geospatial Information
基金
甘肃省自然资源厅科技创新项目(202248)。
关键词
倾斜摄影技术
空地融合
精细化三维重建
Smart
3D
oblique photography technology
air ground integration
refined 3D reconstruction
Smart 3D
