Photograph LIDAR Registration Methodology for Rock Discontinuity Measurement
Rock detachment events along roadways pose public safety concerns but can be predicted and safely handled using geological measurements of discontinuities. With modern sensing technology, these measurements can be taken on 3-D point clouds and 2-D optical images that provide a high level of structural accuracy and visual detail. Doing so allows engineers to obtain the needed data with relative ease while eliminating the biases and hazards inherent in taking manual measurements. This letter presents an approach for fusing the 2-D and 3-D data in natural and unstructured scenes. This includes a novel method for visualizing imagery obtained with very different sensors to maximize their visual similarity making registration a more tangible task. To show the effectiveness of our registration methodology, we evaluate measurements taken manually and digitally on rock facet and cut discontinuity orientations in Rolla, MO. Our method is able to align the 2-D and 3-D data with an accuracy of under 2 cm. The median difference between measurements manually obtained by a geological engineer and those obtained with our proposed software is 3.65.
B. Morago et al., "Photograph LIDAR Registration Methodology for Rock Discontinuity Measurement," IEEE Geoscience and Remote Sensing Letters, vol. 15, no. 6, pp. 947-951, Institute of Electrical and Electronics Engineers (IEEE), Jun 2018.
The definitive version is available at https://doi.org/10.1109/LGRS.2018.2817358
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
2-D-3-D registration; discontinuities; measurement; orientation; terrestrial light detection and ranging (LIDAR)
International Standard Serial Number (ISSN)
Article - Journal
© 2018 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.