Linear LIDAR versus Geiger-mode LIDAR: impact on data properties and data quality

A. Ullrich; M. Pfennigbauer

doi:10.1117/12.2223586

13 May 2016 Linear LIDAR versus Geiger-mode LIDAR: impact on data properties and data quality

A. Ullrich, M. Pfennigbauer

Proceedings Volume 9832, Laser Radar Technology and Applications XXI; 983204 (2016) https://doi.org/10.1117/12.2223586
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

LIDAR has become the inevitable technology to provide accurate 3D data fast and reliably even in adverse measurement situations and harsh environments. It provides highly accurate point clouds with a significant number of additional valuable attributes per point. LIDAR systems based on Geiger-mode avalanche photo diode arrays, also called single photon avalanche photo diode arrays, earlier employed for military applications, now seek to enter the commercial market of 3D data acquisition, advertising higher point acquisition speeds from longer ranges compared to conventional techniques. Publications pointing out the advantages of these new systems refer to 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. We analyze the differences between the two LIDAR technologies and the fundamental differences in the data they provide. The limitations imposed by physics on both approaches to LIDAR are also addressed and advantages of linear LIDAR over the photon counting approach are discussed.

Citation Download Citation

A. Ullrich and M. Pfennigbauer "Linear LIDAR versus Geiger-mode LIDAR: impact on data properties and data quality", Proc. SPIE 9832, Laser Radar Technology and Applications XXI, 983204 (13 May 2016); https://doi.org/10.1117/12.2223586

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