基于无人机倾斜摄影的河湖水质污染范围监控方法研究  

Monitoring Method for Water Pollution Range ofRivers and Lakes Based on Drone Tilt Photography

作　　者：马成才 马永春 罗福正 Ma Chengcai;Ma Yongchun;Luo Fuzheng(Qinghai Provincial Geological Surveying and Mapping Geographic Information Institute,Xining 810000,China;Qinghai Provincial Key Laboratory of High Altitude Surveying and Mapping Geographic Information New Technology,Xining 810000,China;Qinghai Provincial Natural Resources Remote Sensing Center,Xining 810000,China;Key Laboratory of Geospatial Information Technology and Application in Qinghai Province,Xining 810000,China;Qinghai Geospatial and Natural Resources Big data Center,Xining 810000,China)

机构地区：[1]青海省地质测绘地理信息院,青海西宁810000 [2]青海省高原测绘地理信息新技术重点实验室,青海西宁810000 [3]青海省自然资源遥感中心,青海西宁810000 [4]青海省地理空间信息技术与应用重点实验室,青海西宁810000 [5]青海省地理空间和自然资源大数据中心,青海西宁810000

出　　处：《环境科学与管理》2024年第5期133-137,共5页Environmental Science and Management

摘　　要：由于河湖水污染的非连续性,使得水质污染范围监控结果不精准,提出基于无人机倾斜摄影的河湖水质污染范围监控方法。导入倾斜摄影图像,通过光束法测量区域网空中三角,分析像素点坐标。计算三维空间点和相机像素点的重投影误差,生成水质污染高密度点云数据。对图像径向畸变、切向畸变处理,线性变换处理图像。结合无人机高光谱遥感反射率测定方式,获取太阳总辐照度。基于无人机高光谱遥感反射率计算结果,监控河湖水质污染范围。实验结果可知,监控的异常水体污染范围与实际监控范围一致,该方法具有精准监控效果。Due to the discontinuity of water pollution in rivers and lakes,the monitoring results of water pollution range are not accurate,and a monitoring method of water pollution range of rivers and lakes based on UAV oblique photography is proposed.By using oblique photographic images,the aerial triangle of regional network is measured by beam method to analyze the pixel coordinates.The reprojection errors of 3D space points and camera pixels are calculated to generate high density point cloud data of water pollution.The image is processed by radial distortion,tangential distortion and linear transformation.The total solar irradiance was obtained by using the hyperspectral remote sensing reflectance measurement method of UAV.Based on the reflectivity calculation results of UAV hyperspectral remote sensing,the water pollution range of river and lake is monitored.The experimental results show that the monitored abnormal water pollution range is consistent with the actual monitoring range,and this method has accurate monitoring effect.

关 键 词：无人机倾斜摄影 河湖水质污染 范围监控 畸变数据处理 

分 类 号：X832[环境科学与工程—环境工程]