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An Objective Assessment of Hyperspectral Indicators for the Detection of Buried Archaeological Relics

Cerra, Daniele and Agapiou, Athos and Cavalli, Rosa Maria and Sarris, Apostolos (2018) An Objective Assessment of Hyperspectral Indicators for the Detection of Buried Archaeological Relics. Remote Sensing, 10 (4), pp. 1-25. Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/rs10040500 ISSN 2072-4292

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Official URL: http://www.mdpi.com/2072-4292/10/4/500


Hyperspectral images can highlight crop marks in vegetated areas, which may indicate the presence of underground buried structures, by exploiting the spectral information conveyed in reflected solar radiation. In recent years, different vegetation indices and several other image features have been used, with varying success, to improve the interpretation of remotely sensed images for archaeological research. However, it is difficult to assess the derived maps quantitatively and select the most meaningful one for a given task, in particular for a non-specialist in image processing. This paper estimates for the first time objectively the suitability of maps derived from spectral features for the detection of buried archaeological structures in vegetated areas based on information theory. This is achieved by computing the statistical dependence between the extracted features and a digital map indicating the presence of buried structures using information theoretical notions. Based on the obtained scores on known targets, the features can be ranked and the most suitable can be chosen to aid in the discovery of previously undetected crop marks in the area under similar conditions. Three case studies are reported: the Roman buried remains of Carnuntum (Austria), the underground structures of Selinunte in the South of Italy, and the buried street relics of Pherai (Velestino) in central Greece.

Item URL in elib:https://elib.dlr.de/119565/
Document Type:Article
Title:An Objective Assessment of Hyperspectral Indicators for the Detection of Buried Archaeological Relics
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Cerra, Danieledaniele.cerra (at) dlr.dehttps://orcid.org/0000-0003-2984-8315
Agapiou, AthosCyprus University of TechnologyUNSPECIFIED
Cavalli, Rosa MariaCNR, ItalyUNSPECIFIED
Sarris, ApostolosFORTH, GreeceUNSPECIFIED
Date:22 March 2018
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.3390/rs10040500
Page Range:pp. 1-25
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:Hyperspectral imaging; archaeology; cultural heritage; mutual information; spectral indices; crop marks
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Cerra, Daniele
Deposited On:05 Apr 2018 12:46
Last Modified:14 Dec 2019 04:26

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