The Production Of Digital Orthophoto Map Based On The UAVs

With the constantly understanding of geographical environment and the growth ofthe demand for surveying and mapping makes unmanned aerial vehicle (UAV) andmapping relationship is more and more closely. It has high aging, high resolution,repeated use, low cost, low loss and the risk is low, and many other advantages, due toit`s other advantages than traditional satellite remote sensing,it get more and morefavour of the researchers and producers. UAV provide reliable basis for investigation ofland and resources and national economic construction and disaster prevention planning,etc., it also has good effect on accuracy in other data, meanwhile, and the integrity ofthe evaluation. However UAV aerial triangulation system images is small, the numberis much, cause heavy work,and pictures overlap degree course tortuosity is irregular,these questions have become domestic for photogrammetric system problem. It hascertain research value for these problems and how to make high quality in the actualproduction of DOM. In order to solve the problems of the UAV image data processing,the thesis mainly launches the research in the following respects:(1) Firstly, this paper discussed the composition of unmanned air remotesensing vehicle system and application status.(2) Introduces the basic theory of digital photogrammetry, this paperexperiment was based on the soft of German aeorrtinauglation, so weintroduce the algorithms that using in experiment.(3) The paper discussed the processing of DOM, and analysed the problemsof the poor quality of the DOM, and pointed out the key process ofdrawing DOM, with the examples of specific show the key part of theproblem, and gives the corresponding solutions to solve these problems.