Accuracy Assessment of Establishing 3D Real Scale Model in Close-Range Photogrammetry with Digital Camera

Three-dimensional (3D) real scale models delivered from digital photogrammetric techniques have rapidly increased to meet the requirements of many applications in different fields daily life. This paper deals with establishment a 3D model block images (18 images) that were captured by using Canon EOS 500D camera cover test field area consisting 90 artificial target points, 25 them are ground control points (GCPs) while remains checkpoints (CPs). The analytical processes including calculation interior orientation parameters (IOPs) during calibration process, exterior (EOPs) each capturing, and object space (ground) coordinates calculated simultaneously based on collinearity equation bundle adjustment method (BBA). Assessment validation accuracy results is an important task this study was implemented determine analyze errors through linear regression analysis (LRA). Root mean square error (RMSE) statistical parameter used results. standard another which also evaluate locations rotation angles cameras. total RMSE (RMSE)xyz GCPs ± 2.530 mm (RMSExyz) CPs 2.740 mm. overall work 5.000