2021 Virtual Keynote Speaker Series
Derek Lichti
New Network Design Processes to Support 3D Reality Capture with Terrestrial Laser Scanners
May 27, 2021 at 3 PM CEST (1 PM GMT)
ABSTRACT
We currently live in an era of proliferation in the availability, variety and utilization of imaging sensors for 3D reality capture. Among these, terrestrial laser scanning (TLS) remains an important data collection technology for building information modelling, heritage recording and dimensional control, among other applications. Geometric network design is an important process performed prior to TLS data capture. Though first established nearly a half century ago, its principles are still pertinent today since it aims to maximize data quality whilst minimizing the labour costs for field data collection and post-processing office work. This presentation describes two new contributions to the first-order (configuration) design of TLS networks. The first focuses on the optimization of instrument locations or viewpoints required for complete coverage of large, complex environments. The second proposes a continuous model of the distribution of observations that permits closed-form estimation of parameter quality. Its application to TLS self-calibration is demonstrated.
BIOGRAPHY
Derek Lichti is Professor of Geomatics Engineering at the University of Calgary, where he served as Department Head from 2013 to 2018. Prior to joining University of Calgary in 2008, he was with Curtin University (1999-2007). Derek served as Editor-in-Chief of the ISPRS Journal of Photogrammetry and Remote Sensing (2013-2020). Prior to that he served two terms as Chair of ISPRS Working Group V/3 on terrestrial laser scanning. He is the recipient of the 2020 Schwidefsky Medal.