orientation-laserscanningA new paper from the Finnish Geodesic Institute and the Helsinki Institute of Technology discusses a new method for computed 3D models of an environment using photogrammetry and laser scanning but adds in compensation for orientation problems.

Comprehensive 3D modeling of our environment requires integration of terrestrial and airborne data, which is collected, preferably, using laser scanning and photogrammetric methods. However, integration of these multi-source data requires accurate relative orientations. In this article, two methods for solving relative orientation problems are presented.

The entire paper is available as a PDF.

via Abstract: Orientation of Airborne Laser Scanning Point Clouds with Multi-View, Multi-Scale Image Blocks – MDPI.