131717 - Using a micro-UAV for ultra-high resolution multi-sensor observations of Antarctic moss beds.pdf (2.3 MB)Download file
Using a micro-UAV for ultra-high resolution multi-sensor observations of Antarctic moss beds
conference contributionposted on 2023-05-23, 14:02 authored by Arko LucieerArko Lucieer, Robinson, S, Darren TurnerDarren Turner, Harwin, S, Kelcey, J
This study is the first to use an Unmanned Aerial Vehicle (UAV) for mapping moss beds in Antarctica. Mosses can be used as indicators for the regional effects of climate change. Mapping and monitoring their extent and health is therefore important. UAV aerial photography provides ultra-high resolution spatial data for this purpose. We developed a technique to extract an extremely dense 3D point cloud from overlapping UAV aerial photography based on structure from motion (SfM) algorithms. The combination of SfM and patch-based multi-view stereo image vision algorithms resulted in a 2 cm resolution digital terrain model (DTM). This detailed topographic information combined with vegetation indices derived from a 6-band multispectral sensor enabled the assessment of moss bed health. This novel UAV system has allowed us to map different environmental characteristics of the moss beds at ultra-high resolution providing us with a better understanding of these fragile Antarctic ecosystems. The paper provides details on the different UAV instruments and the image processing framework resulting in DEMs, vegetation indices, and terrain derivatives.
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Publication titleProceedings of the 22nd International Society for Photogammetry and Remote Sensing Congress
Department/SchoolSchool of Geography, Planning and Spatial Sciences
Place of publicationGermany
Event title22nd International Society for Photogammetry and Remote Sensing Congress
Event VenueInternat Arch Photogram Remote Sens & Spat Inf Sci
Date of Event (Start Date)2012-08-25
Date of Event (End Date)2012-09-01
Rights statementCopyright the Author(s) This work is distributed under the Creative Commons Attribution 3.0 License.