Potential UAV Landing Sites Detection through Digital Elevation Models Analysis

• URL: http://arxiv.org/abs/2107.06921v1
• Date: Wed, 14 Jul 2021 18:13:35 GMT
• Title: Potential UAV Landing Sites Detection through Digital Elevation Models Analysis
• Authors: Efstratios Kakaletsis, Nikos Nikolaidis
• Abstract summary: Flat areas which constitute appropriate landing zones for UAVs in normal or emergency situations result by thresholding the image gradient magnitude of the digital surface model (DSM) Man-made structures and vegetation areas are detected and excluded from the potential landing sites.
• Score: 6.167849162878745
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, a simple technique for Unmanned Aerial Vehicles (UAVs) potential landing site detection using terrain information through identification of flat areas, is presented. The algorithm utilizes digital elevation models (DEM) that represent the height distribution of an area. Flat areas which constitute appropriate landing zones for UAVs in normal or emergency situations result by thresholding the image gradient magnitude of the digital surface model (DSM). The proposed technique also uses connected components evaluation on the thresholded gradient image in order to discover connected regions of sufficient size for landing. Moreover, man-made structures and vegetation areas are detected and excluded from the potential landing sites. Quantitative performance evaluation of the proposed landing site detection algorithm in a number of areas on real world and synthetic datasets, accompanied by a comparison with a state-of-the-art algorithm, proves its efficiency and superiority.

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