Aguilera, Diego GonzalezLahoz, Javier GomezMarinos Ioannides and David Arnold and Franco Niccolucci and Katerina Mania2014-01-312014-01-3120063-905673-42-81811-864Xhttps://doi.org/10.2312/VAST/VAST06/053-060This paper deals with an important topic: the automatic co-registration of terrestrial laser scanner data and high-resolution digital images. Our approach harnesses the power of a single image-based modeling method developed focusing on obtaining a spatial dimensional analysis from a single image. Particularly, the problem of image registration is solved automatically through a camera calibration method which takes 2D and 3D points correspondences as input data based on a search of spatial invariants: two distances and one angle.