REGISTRATION AND TRANSFORMATION OF MULTIPLE SITE TERRESTRIAL LASER SCANNING

摘要

Two computational methods for combining multiple scans of 3D terrestrial laser scanning data of an object are reported in this paper. One method is the 'Registration' process in Cyra's Cyclone software that is associated with Cyrax laser scanners. The other method is least squares estimation of transformation parameters. The two methods provided similar but different solutions, each with advantages and disadvantages. Laser scanning experiments and software development have been used to investigate the combination of laser scans and with independent survey measurements of special targets. The accuracy of distance measurement between special scanning targets is also reported in this paper as being repeatable at about the ± 1 mm standard deviation level.