Application Of Low-altitude Uav Photography System In Land Contract Management Right Confirmation

Low-altitude UAV photography system is a spatial data acquisition system integrating unmanned aerial vehicle(UAV),photography,remote sensing,communication,3S and inertial navigation technology.It has the characteristics of high mobility,high integration,high resolution and low cost.It has been successfully applied to the production of large scale DLG,DOM,DEM and other 4D products.Making it possible to quickly acquire geospatial information such as environment,resources and land.It has become one of the important technical means to obtain geospatial data information.The object of this paper is the data acquisition and processing of Low-altitude UAV photography system,basing on the project of the right to land contractual management right registration certification in Yongping,Jinggu,Yunnan Province.This paper systematically studies the composition of Low-altitude UAV photography system,the acquisition methods and technical indicators of raw data,the processing principle and process of internal data,and the accuracy evaluation of data results.Taking UAV photography method to obtain the original image data of the project area.Using DPGrid software to encrypt image space three.Processing aerial image data with aerial triangulation with DPGrid software.Map work right of contracted management rights of rural land in the formation,and the accuracy of evaluation.After analysis,the actual use of good results of UAV image in the rural land contract management rights is indeed the right boundary outside the industry survey and mapping industry.The UAV image has the characteristics of high resolution,good accuracy and low price.There are obvious advantages in the project of rural land contract management right.The main contents of this paper include the following aspects:(1)Introduced the components and functions of Low-altitude UAV photography system.Studied the method,process,main technical indexes,route design,outdoor aerial photography and aerial photography quality inspection of Low-altitude UAV photography system.The measurement method of photo control points and the problems that should be paid attention to in outdoor aerial photography are emphatically studied.(2)Research on UAV data processing technology.How to use DPGrid to process data,Including pretreatment,aerial triangulation,DEM and DOM production and precision evaluation and other major technical processe.The evaluation methods of aerial triangulation and DOM accuracy are emphatically studied.(3)Optimal analysising of the right method of land contract management right.Analysising of application advantages of unmanned aerial vehicles.Using the right to land contractual management right registration certification project as an example.Studying the application of UAV photography system in the project.The accuracy of survey results of aerial triangulation,DOM and final ownership survey is emphatically studied.