摘要
论文利用控制变量法,通过试验分析和测试相机倾角对模型质量的影响,地面分辨率、像控点布设方案等因素对倾斜摄影三维模型在地籍测绘应用中地物点精度的影响。相机倾角越大,建模的质量越好,地面分辨率与地物点精度成正相关,像控点数量与地物精度成正相关。当像控点以单倍航高至两倍航高之间的距离为格网间距均匀布设,地面分辨率优于2.0cm,可以满足地物点精度优于5cm,能够应用于地籍测绘以及大比例尺地形图测绘。
Using the control variable method,through experiments,this paper analyzes and measures the influence of the tilt angle of the camera on the model quality,and the influence of ground resolution,image control points layout scheme and other factors on the accuracy of ground object points in the application of tilt photography 3D model in cadastral surveying and mapping.The larger the camera angle is,the better the quality of modeling is.The ground resolution is positively correlated with the accuracy of ground object points,and the number of image control points is positively correlated with the accuracy of ground objects.When the image control points are evenly arranged with the distance between single flight height and double flight height as the grid spacing,the ground resolution is better than 2.0 cm,which can meet the requirements that the accuracy of ground object points is better than 5 cm,and can be applied to cadastral surveying and mapping and large-scale topographic map surveying and mapping.
作者
陈廷钧
CHEN Ting-jun(Fujian Geological Engineering Survey Institute,Fuzhou 350001,China)
出处
《中小企业管理与科技》
2020年第30期141-145,共5页
Management & Technology of SME
关键词
倾斜摄影
地面分辨率
像控点测量
精度分析
地籍测绘
tilt photography
ground resolution
image control point measurement
accuracy analysis
cadastral surveying and mapping
