Talk by Andreas Ulrich, RIEGL

We would like to invite you to the following talk:


What a difference a detector makes: a discussion on linear LIDAR and Geiger-Mode LIDAR
by Dr. Andreas Ulrich, RIEGL

LIDAR technology has matured of the last two decades and is used in numerous fields of applications over short and long ranges, stationary from tripods but also mounted on moving platforms on almost any kind of vehicle, cars, ships, aircrafts and UAVs. LIDAR provides highly accurate point clouds with a significant number of additional valuable attributes per point. LIDAR has become the inevitable technology to provide accurate 3D data fast and reliably even in adverse measurement situations and harsh environments.

Recently, LIDAR systems based on Geiger-mode avalanche photo diode arrays, also called single photon avalanche photo diode arrays emerge in the commercial market of 3D data acquisition, advertising higher point acquisition speeds from longer ranges compared to conventional techniques. Papers pointing out the advantages of these new systems refer to the the other category of LIDAR as „linear LIDAR“, as the prime receiver element for detecting the laser echo pulses - avalanche photo diodes -  are used in a linear mode of operation.

The presentation points out the differences between the two LIDAR technologies and the fundamental differences in the data they provide. It also addresses limitations imposed by physics on both approaches to LIDAR and discusses advantages of linear LIDAR over the photon counting approach.

Author/Presenter: Dr. Andreas Ullrich holds a Phd in electrical engineering from Vienna University of Technology and is author of the thesis on "High-Resolution Optical Doppler Radar" (1987-1990). Since 2001 he is lecturer on radar technology at the Institute of Communications and Radio-Frequency Engineering at Vienna University of Technology. In 2004 he was awarded with the Wilhelm-Exner-Medaille.
From 1984 to 1991 Dr. Ullrich was Assistance Professor at the Institute of Communications and Radio-Frequency Engeineering at Vienna University of Technology. Since 1991 he has been with RIEGL Laser Measurement Systems holding various positions. Since 2006 he is CTO and managing director of RIEGL.

Friday, 15 April 2016, 11:00–13:00
EI 8 Pötzl-Hörsaal, Gusshausstraße 29, ground floor

04.04.2016
Category: Announcements, Photogrammetry