Design And Realization Of The Remote Sensing System Based On The Low Altitude UAV Platform

The drone is a low-altitude flight platform,it has the characteristics of low cost and flexible maneuver.With high resolution sensor,real-time observation and acquisition of remote sensing images are carried out.It can play an important role in photogrammetry?remote sensing and emergency mapping.Different from traditional aerial photography,the current low altitude unmanned aerial vehicle remote sensing system uses the small digital camera as the airborne remote sensing system.Compared with the traditional aerial photography,there are many problems,for example,the image distortion is big,the image is small,and the number of images is large.The paper based on the problems of low altitude UAV remote sensing image to put forward the solution,and discussed the distortion.On the basis of research on multi-camera group image mosaic,with the combination of modern computer graphics and photogrammetry,the paper put forward a self-calibration image mosaic method for multi-camera group.Thus the problems of small image,large numbers of low altitude UAV remote sensing system are worked out.In order to research the remote sensing image self-calibration mosaic,this paper did a detailed research on the key technology of UAV image fast mosaic.The main work was as follows:1.The paper researched and designed the basic technical architecture of image mosaic method for multi-camera group,in which a deep research was did on the key algorism of the UAV remote sensing image self-calibration mosaic,such as camera calibration,multi-camera self-calibration,image dodging and image registration.Via the introduction of the application of high accuracy Positioning and Orientation System,the method improved the accuracy of self-calibration of multi-camera group.2.The paper did a research on the formulation and realization of the UAV remote sensing system architecture based on the deep research on the characteristic of low-altitude UAV remote sensing,which covered platform type selection,camera design and realization,ground control system and data processing system;3.In order to verify the feasibility of the remote sensing image self-calibration mosaic,the aerial triangulation method was applied to a real and typical UAV remote sensing mapping task.