Assessment of NavVis VLX and BLK2GO SLAM Scanner Accuracy for Outdoor and Indoor Surveying Tasks

The Simultaneous Localization and Mapping (SLAM) scanner is an easy and portable Light Detection and Ranging (LiDAR) data acquisition device. Its main output is a 3D point cloud covering the scanned scene. Regarding the importance of accuracy in the survey domain, this paper aims to assess the accur...

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Bibliographic Details
Published inRemote sensing (Basel, Switzerland) Vol. 16; no. 17; p. 3256
Main Authors Gharineiat, Zahra, Tarsha Kurdi, Fayez, Henny, Krish, Gray, Hamish, Jamieson, Aaron, Reeves, Nicholas
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2024
Subjects
Accuracy
accuracy assessment
Algorithms
Construction
Cultural heritage
Data acquisition
Edge detection
indoor and outdoor
Indoor environments
Lasers
LiDAR
Localization
Mapping
Photogrammetry
Portable equipment
Scanners
Sensors
Simultaneous localization and mapping
SLAM
Software
Three dimensional models
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Summary:The Simultaneous Localization and Mapping (SLAM) scanner is an easy and portable Light Detection and Ranging (LiDAR) data acquisition device. Its main output is a 3D point cloud covering the scanned scene. Regarding the importance of accuracy in the survey domain, this paper aims to assess the accuracy of two SLAM scanners: the NavVis VLX and the BLK2GO scanner. This assessment is conducted for both outdoor and indoor environments. In this context, two types of reference data were used: the total station (TS) and the static scanner Z+F Imager 5016. To carry out the assessment, four comparisons were tested: cloud-to-cloud, cloud-to-mesh, mesh-to-mesh, and edge detection board assessment. However, the results of the assessments confirmed that the accuracy of indoor SLAM scanner measurements (5 mm) was greater than that of outdoor ones (between 10 mm and 60 mm). Moreover, the comparison of cloud-to-cloud provided the best accuracy regarding direct accuracy measurement without manipulations. Finally, based on the high accuracy, scanning speed, flexibility, and the accuracy differences between tested cases, it was confirmed that SLAM scanners are effective tools for data acquisition.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs16173256