The Analysis Of Building The Experimental System For Indoor Photogrammertry Based On Sand Table Model

With the continuous development of photogrammetric technology,to solve the digress of photogrammetry teaching and practice.The experimental system for Indoor Photogrammertry system has been build.But the experimental system for Indoor Photogrammertry is in a sealed room,so the relative height of flight simulator has been limited seriously.Because of the height limitation,the image point come out offset.How to get accurate image on the situation of overlapped.These questions has to be consideration to realize the experimental system for Indoor Photogrammertry.To save the problem of building the experimental system for Indoor Photogrammertry,the main content of this essay is including:(1)Through the analysis of Photogrammertry teaching situation,to design the general structure of the experimental for Indoor Photogrammertry.Study the structure of experiment and design the process of Indoor Photogrammertry.Combine the experiment to expound distortion error of camera and the principle of image control point's location designing and the theory of aerotriangulation with experiment operation.(2)Based on the experimental system for Indoor Photogrammertry,to analysis how terrain dispersion influence on image.To explore the relationship between overlap and terrain dispersion and to design the pattern of terrain.Though analysis of stereoscopic measurement to get the answer of how overlap influence on the elevation accurate image point.Based on the experimental system for Indoor Photogrammertry to design the control points distribution.(3)Finally,in the basic of image data from experiment,design six kinds of the control points distribution.And used the Geolord-AT software.Get the accuracy of directionpoint and checkpoints in the bundle block adjustment.The comparative analysis shows that the four corners of the test area plus the central point layout scheme is the best.