NDLI: Airborne LiDAR-Derived Digital Elevation Model for Archaeology

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Airborne LiDAR-Derived Digital Elevation Model for Archaeology

Content Provider	MDPI
Author	Benjamin, Štular Edisa, Lozić Eichert, Stefan
Copyright Year	2021
Description	The use of topographic airborne LiDAR data has become an essential part of archaeological prospection, and the need for an archaeology-specific data processing workflow is well known. It is therefore surprising that little attention has been paid to the key element of processing: an archaeology-specific DEM. Accordingly, the aim of this paper is to describe an archaeology-specific DEM in detail, provide a tool for its automatic precision assessment, and determine the appropriate grid resolution. We define an archaeology-specific DEM as a subtype of DEM, which is interpolated from ground points, buildings, and four morphological types of archaeological features. We introduce a confidence map (QGIS plug-in) that assigns a confidence level to each grid cell. This is primarily used to attach a confidence level to each archaeological feature, which is useful for detecting data bias in archaeological interpretation. Confidence mapping is also an effective tool for identifying the optimal grid resolution for specific datasets. Beyond archaeological applications, the confidence map provides clear criteria for segmentation, which is one of the unsolved problems of DEM interpolation. All of these are important steps towards the general methodological maturity of airborne LiDAR in archaeology, which is our ultimate goal.
Starting Page	1855
e-ISSN	20724292
DOI	10.3390/rs13091855
Journal	Remote Sensing
Issue Number	9
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2021-05-10
Access Restriction	Open
Subject Keyword	Remote Sensing Archaeology Airborne Lidar Airborne Laser Scanning Als Dem Dtm Digital Feature Model Dfm Confidence Map Qgis Plug-in
Content Type	Text
Resource Type	Article

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