| GPS/INS Integrated Navigation System is a combination of Global Positioning System(GPS)and Inertial Navigation System(INS),which combines the advantages of long-term high-precision positioning of GPS and completely autonomous navigation of INS,so as to provide high-precision exterior orientation elements for aerial photogrametry,and reduce the number of fi eld control points to a large extent.At the same time,digital aerial devices,which make use of Charge-Coupled Device(CCD),wins global popularity by the merits of stability,legerity and power efficiency.As a new kind of digital aerial cameras,ADS100 Push-broom Digital Aerial Camera,fully combines high-precise GPS/INS Integrated Navigation System and Three-line CCD cameras,and uncontrolled aerial triangulation encryption come true theoretically.With the help of theoretical analysis,this paper focuses on experimental research and accuracy assessment of uncontrolled aerial triangulation encryption based on the ADS100 filming data on the platform of pixel factories.First,this paper introduces the imaging equation and imaging principle of ADS100 three-line CCD sensor;second,it describes the fundamentals,methods and key technologies of the inertial navigation system IMU/DGPS auxiliary aerial photogrammetry;third,further details on the features and advantages of pixel factory software specialized in processing big data used to handle ADS100 data will follow;forth,according to the selected experimental data,it will illustrate the uncontrolled aerial triangulation encryption process,accuracy assessment of the aerial triangulation results,and the analysis of influential factors of aerial triangulation results’ accuracy during the process of POS data and aerial triangulation calculation;finally,aiming at the application cases of connecting ADS100 big data with pixel factory software,this paper will focus on discussing the method of exporting the aerial triangulation results to the Space Vision Pixel Grid software,and then further explore the methods,such as orthophoto production and digital mapping,based on the exporting ways of pixel factories and aerial triangulation. |