无人机航测技术在山区河道治理中的应用

Application of UAV Aerial Survey Technology in River Regulation

山区河道的治理是开展河湖管理的重要基础性工作,当前山区河道的建设和治理存在许多问题,亟需开展相应的治理规划。针对传统河道治理规划前期所需基础测绘资料获取所面临的范围广、限制因素多、精度要求高、技术难度大等问题,可将无人机航测技术应用到山区河道治理工程中,以解决这些问题。以江西宜春某乡镇的山区河道治理为例,通过无人机外业得到航摄影像,在Pix4Dmapper软件中得到高质量地形图成果与全景三维模型,辅助治理工程的前期规划,并提出相关建议,为山区河道治理规划前期的测绘工作提供实例参考。

The governance of mountain rivers is an important basic work for river and lake management.And currently there are many problems in the construction and governance of mountain rivers.It is urgent to carry out corresponding plans.Considering the wide range,many limiting factors,high precision requirements and high technical difficulty of obtaining basic surveying and mapping data required in the early stage of traditional river management planning,UAV aerial survey technology is applied.Taking the treatment of a mountain river in a town of Yichun,Jiangxi Province as an example,aerial photography images are obtained through the UAV field work,and high-quality topographic map results and panoramic 3D models are obtained with the Pix4Dmapper software,which assists the preliminary planning of the treatment project.Relevant suggestions are put forward,providing an example reference for the surveying and mapping work in the early stage of mountain river managementplanning.