Javier Gómez Lahoz

Terrestrial laser scanner and high-resolution camera registration through single image-based modeling

This 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.

Learning from educational software in 3D cartography.

The article discusses educational tools developed at the University of Salamanca to aid in the study and application of 3-dimensional cartography. A digital camera calibrator employs “simulation” and “reality” modules to make learning about camera calibration easier. Another program helps teach the fundamentals of laser scanning technology. Inexpensive digital aerial photogrammetry is the focus of a third program. The authors also describe programs for close-range photogrammetry and digital terrain and elevation