利用少量像控点的倾斜摄影测量房地一体调查方法

房地一体调查是实施乡村振兴战略、深化农村土地制度改革的重要举措.本文利用CW-15垂直起降固定翼无人机,搭载CA504倾斜摄影相机和工业级高精度差分GNSS模块进行数据采集、处理,以湛江市龙头镇为试验区,通过人工喷涂和地物采集方式布设少量像控点,检验该系统在房地一体调查的精度和生产成效.试验表明:1)实景三维模型比照采...

An Integrated Survey Method of Real Estate Based on Oblique Photogrammetry Using a Few Image Control Points

The real estate and land survey is an important measure to implement the rural revitalization strategy and deepen the reform of the rural land system.Taking Longtou Town of Zhanjiang City as the test area,this article uses CW-15 vertical take-off and landing fixed-wing UAV,equipped with CA504 tilt camera and industrial-grade high-accurate differential GNSS module for data collection and processing through manual spraying and ground object collection.It deploys a small number of image control points to test the accuracy and production effectiveness of the system's integrated investigation on the premises.The experiment shows that:(1)The planimetric error of the field inspection points collected by the real-scene 3D model is 0.0314 meters,and the vertical error is 0.0303 meters,and the aerial triangulation and the three-dimensional mapping meet the accuracy requirements.(2)CW-15 UAV is equipped with CA504 tilt camera and PPK post-difference analysis software system to complete the solution.It is simple and convenient to operate.It can cover more than 2.5 square kilometers of effective area within 90 minutes of operation time,effectively reducing field data collection cost.