Visual-Lidar Map Alignment for Infrastructure Inspections

Fuente: arXiv
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Main Authors: McLaughlin, Jake, Charron, Nicholas, Narasimhan, Sriram
Format: Preprint
Published: 2025
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author McLaughlin, Jake
Charron, Nicholas
Narasimhan, Sriram
author_facet McLaughlin, Jake
Charron, Nicholas
Narasimhan, Sriram
contents Routine and repetitive infrastructure inspections present safety, efficiency, and consistency challenges as they are performed manually, often in challenging or hazardous environments. They can also introduce subjectivity and errors into the process, resulting in undesirable outcomes. Simultaneous localization and mapping (SLAM) presents an opportunity to generate high-quality 3D maps that can be used to extract accurate and objective inspection data. Yet, many SLAM algorithms are limited in their ability to align 3D maps from repeated inspections in GPS-denied settings automatically. This limitation hinders practical long-term asset health assessments by requiring tedious manual alignment for data association across scans from previous inspections. This paper introduces a versatile map alignment algorithm leveraging both visual and lidar data for improved place recognition robustness and presents an infrastructure-focused dataset tailored for consecutive inspections. By detaching map alignment from SLAM, our approach enhances infrastructure inspection pipelines, supports monitoring asset degradation over time, and invigorates SLAM research by permitting exploration beyond existing multi-session SLAM algorithms.
format Preprint
id arxiv_https___arxiv_org_abs_2501_14486
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Visual-Lidar Map Alignment for Infrastructure Inspections
McLaughlin, Jake
Charron, Nicholas
Narasimhan, Sriram
Robotics
68T40 (primary), 62P30 (secondary)
J.2; I.4
Routine and repetitive infrastructure inspections present safety, efficiency, and consistency challenges as they are performed manually, often in challenging or hazardous environments. They can also introduce subjectivity and errors into the process, resulting in undesirable outcomes. Simultaneous localization and mapping (SLAM) presents an opportunity to generate high-quality 3D maps that can be used to extract accurate and objective inspection data. Yet, many SLAM algorithms are limited in their ability to align 3D maps from repeated inspections in GPS-denied settings automatically. This limitation hinders practical long-term asset health assessments by requiring tedious manual alignment for data association across scans from previous inspections. This paper introduces a versatile map alignment algorithm leveraging both visual and lidar data for improved place recognition robustness and presents an infrastructure-focused dataset tailored for consecutive inspections. By detaching map alignment from SLAM, our approach enhances infrastructure inspection pipelines, supports monitoring asset degradation over time, and invigorates SLAM research by permitting exploration beyond existing multi-session SLAM algorithms.
title Visual-Lidar Map Alignment for Infrastructure Inspections
topic Robotics
68T40 (primary), 62P30 (secondary)
J.2; I.4
url https://arxiv.org/abs/2501.14486