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https://hdl.handle.net/20.500.14279/32485
Τίτλος: | A Machine-Learning-Assisted Classification Algorithm for the Detection of Archaeological Proxies (Cropmarks) Based on Reflectance Signatures | Συγγραφείς: | Agapiou, Athos Gravanis, Elias |
Major Field of Science: | Engineering and Technology | Field Category: | Civil Engineering | Λέξεις-κλειδιά: | Archaeological proxies;Cropmarks formation;Subsurface archaeological remains;Detection;Machine learning;Spectral signatures | Ημερομηνία Έκδοσης: | 11-Μαΐ-2024 | Πηγή: | Remote Sensing, 2024 vol. 16 n.10 | Volume: | 16 | Issue: | 10 | Project: | CIVIL ENGINEERING AND GEOMATICS INNOVATIVE RESEARCH ON HERITAGE (ENGINEER) | Περιοδικό: | Remote Sensing | Περίληψη: | The detection of subsurface archaeological remains using a range of remote sensing methods poses several challenges. Recent studies regarding the detection of archaeological proxies like those of cropmarks highlight the complexity of the phenomenon. In this work, we present three different methods, and associated indices, for identifying stressed reflectance signatures indicating buried archaeological remains, based on a dataset of measured ground spectroradiometric reflectance. Several spectral profiles between the visible and near-infrared parts of the spectrum were taken in a controlled environment in Cyprus during 2011–2012 and are re-used in this study. The first two (spectral) methods are based on a suitable analysis of the spectral signatures in (1) the visible part of the spectrum, in particular in the neighborhood of 570 nm, and (2) the red edge part of the spectrum, in the neighborhood of 730 nm. Machine learning (decision trees) allows for the deduction of suitable wavelengths to focus on in order to formulate the proposed indices and the associated classification criteria (decision boundaries) that can enhance the detection probability of stressed vegetation. Noise in the signal is taken into account by simulating reflectance signatures perturbed by white noise. Applying decision tree classification on the ensemble of simulations and basic statistical analysis, we refine the formulation of the indices and criteria for the noisy signatures. The success rate of the proposed methods is over 90%. The third method rests on the estimation of vegetation/canopy reflectance parameters through inversion of the physical-based PROSAIL reflectance model and the associated classification through machine learning methods. The obtained results provide further insights into the formation of stress vegetation that occurred due to the presence of shallow buried archaeological remains, which are well aligned with physical-based models and existing empirical knowledge. To the best of the authors’ knowledge, this is the first study demonstrating the usefulness of radiative transfer models such as PROSAIL for understanding the formation of cropmarks. Similar studies can support future research directions towards the development of regional remote sensing methods and algorithms if systematic observations are adequately dispersed in space and time. | URI: | https://hdl.handle.net/20.500.14279/32485 | ISSN: | 2072-4292 | DOI: | 10.3390/rs16101705 | Rights: | Attribution 4.0 International | Type: | Article | Affiliation: | Cyprus University of Technology | Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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A Machine-Learning-Assisted.pdf | 10.05 MB | Adobe PDF | Δείτε/ Ανοίξτε |
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