期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2003
卷号:XXXIV-5/W12
出版社:Copernicus Publications
摘要:The objective of this paper is to introduce a low cost digital close range photogrammetric system developed in our department. With this system an amateur camera is employed for stereo coverage of industrial objects. The acquired images are scanned by a desktop scanner. The digitized images are then fed into a desktop computer for photogrammetric processing developed in Matlab6.5 environment. Processing includes the solution of approximate interior orientation of the camera followed by the Moniwa self calibration space resection/intersection strategy. Imperfections due to the camera and the scanner instable geometry are catered for by the self calibration parameters. The reliability and stability of the solution of the space/resection intersection equations are secured by a priori constructed control network whose coordinates are determined by a geodetic surveying method. First experiments carried out by our photogrammetric system for measuring nearly 100 points on a piece of reinforced concrete for a civil engineering project indicates accuracy figure within 0.2 mm (rmse) for the check points.
关键词:Photogrammetric system; Self calibration; Amateur camera