Tests with SAR Images of the PAZ Platform Applied to the Archaeological Site of Clunia (Burgos, Spain)

Fiz, Ignacio; Cuesta, Rosa; Subias, E.; Martín, Pere Manel

doi:10.3390/rs13122344

Cited by 6 publications

(5 citation statements)

References 30 publications

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“…Among the indices that we used the most are the NDVI (NIR and R), ENDVI (NIR, G, and B) and ARVI (NIR, R, B). Through the combination of the NIR, R, G, and B bands, finally, a principal component analysis (PCA) was applied, especially due to the good results obtained by our team in the Egyptian oxyrhynchite landscape with WorldView 2 satellite images [11] and in the same Clunia project with SPOT and TripleSat multispectral images [12,13].…”

Section: Treatment and Analysis Softwarementioning

confidence: 99%

“…The program, developed by the research group of the Slovenian Academy of Sciences and Arts [16], has been used with great success in studies by Massini et al [17] to locate the structures of a medieval fortification in Basilicata (Italy); Garcia Sanchez [18] in the detection of Samniticus forts in Civitella (Longano, Italy), and Roman et al [19] in the record of archaeological traces of the Roman limes in Dacia at Porolissum. Our team has previously worked with this program, mainly based on LiDAR data provided by the IGN, applying it above all to the Clunia deposit [12,13].…”

Section: Treatment and Analysis Softwarementioning

confidence: 99%

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Examples and Results of Aerial Photogrammetry in Archeology with UAV: Geometric Documentation, High Resolution Multispectral Analysis, Models and 3D Printing

Fiz

Martín

Cuesta

et al. 2022

Drones

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The use of unmanned aerial vehicles (UAVs, also known as drones or RPA) in archaeology has expanded significantly over the last twenty years. Improvements in terms of the reliability, size, and manageability of these aircraft have been largely complemented by the high resolution and spectral bands provided by the sensors of the different cameras that can be incorporated into their structure. If we add to this the functionalities and improvements that photogrammetry programs have been experiencing in recent years, we can conclude that there has been a qualitative leap in the possibilities, not only of geometric documentation and in the presentation of the archaeological data, but in the incorporation of non-intrusive high-resolution analytics. The work that we present here gives a sample of the possibilities of both geometric documentation, creation of 3D models, their subsequent printing with different materials, and techniques to finally show a series of analytics from images with NGB (Nir + Green + Blue), Red Edge, and Thermographic cameras applied to various archaeological sites in which our team has been working since 2013, such as Clunia (Peñalba de Castro, Burgos), Puig Rom (Roses), Vilanera (L’Escala, Girona), and Cosa (Ansedonia, Italy). All of them correspond to different chronological periods as well as to varied geographical and morphological environments, which will lead us to propose the search for adequate solutions for each of the environments. In the discussions, we will propose the lines of research to be followed in a project of these characteristics, as well as some results that can already be viewed.

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Section: Treatment and Analysis Softwarementioning

confidence: 99%

Section: Treatment and Analysis Softwarementioning

confidence: 99%

Examples and Results of Aerial Photogrammetry in Archeology with UAV: Geometric Documentation, High Resolution Multispectral Analysis, Models and 3D Printing

Fiz

Martín

Cuesta

et al. 2022

Drones

Self Cite

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“…In addition to the capability of operating under any weather conditions, the advantageous properties offered by SAR include wide-swath to spotlight coverage, kilometer to sub-meter spatial resolution, historical and present-day temporal coverage, longer to shorter wavelength, and monthly to daily revisiting time if collecting time series [3]. These properties have made the use of SAR technology attractive for various archaeological applications, some examples in [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Non-Invasive Survey Techniques to Study Nuragic Archaeological Sites: The Nanni Arrù Case Study (Sardinia, Italy)

Muscas,

Demontis,

Lorrai

et al. 2024

Geomatics

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The Italian territory of Sardinia Island has an enormous cultural and identity heritage from the Pre-Nuragic and Nuragic periods, with archaeological evidence of more than 7000 sites. However, many other undiscovered remnants of these ancient times are believed to be present. In this context, it can be helpful to analyze data from different types of sensors on a single information technology platform, to better identify and perimeter hidden archaeological structures. The main objective of the study is to define a methodology that through the processing, analysis, and comparison of data obtained using different non-invasive survey techniques could help to identify and document archaeological sites not yet or only partially investigated. The non-invasive techniques include satellite, unmanned aerial vehicle, and geophysical surveys that have been applied at the nuraghe Nanni Arrù, one of the most important finds in recent times. The complexity of this ancient megalithic edifice and its surroundings represents an ideal use case. The surveys showed some anomalies in the areas south–east and north–east of the excavated portion of the Nanni Arrù site. The comparison between data obtained with the different survey techniques used in the study suggests that in areas where anomalies have been confirmed by multiple data types, buried structures may be present. To confirm this hypothesis, further studies are believed necessary, for example, additional geophysical surveys in the excavated part of the site.

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“…In the past, the cross-sensor interferogram between PAZ and TanDEM-X was created [1] for mapping DEM and land cover, and the co-polarimetric phase difference method was applied to classify the scattering mechanism of PAZ radar scatterers in the VV and HH channels [2]. In terms of applications, PAZ amplitude information was used for archaeological purposes [3]. Those studies show the potential of using PAZ data for e.g.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Persistent Scatterers Behaviour in Co-Polarimetric PAZ Data with Model-Backfeed Method

Zhang

Chang

Stein

2022

IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium

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This study investigates the PAZ SAR data in both VV and HH channels, contributing to PAZ product assessment. It focuses on deformation maps and deformation time series over a test site in Leeuwarden, the Netherlands. To optimize the estimates of the deformation time series and parameters of the temporal model, we developed and applied a model-backfeed method (MBF). This MBF iteratively re-introduces into phase unwrapping the best deformation model of every Constantly Coherent Scatterer, such as Persistent Scatterer (PS), determined by Multiple Hypothesis Testing (MHT). In this regard, distinct temporal behavior of individual scatterers is considered and modeled, thus improving the estimates of deformation time series. 24 co-polarimetric SAR data acquired between 2019 and 2021 are used for our test. The test result shows that PAZ SAR in HH offered 7% more PS than those in VV, and the VV mode identified a bit more PS along lineinfrastructure like roads. Besides, by comparison and GNSSbased validation, we find that co-pol PAZ products are generally of a good quality. The MBF method increases the average ensemble coherence by 38% for VV and 35% for HH, and decreases the average spatio-temporal consistency by 2.3% for VV and HH and mitigates phase unwrapping errors, thereby optimize deformation estimates.

show abstract

Tests with SAR Images of the PAZ Platform Applied to the Archaeological Site of Clunia (Burgos, Spain)

Cited by 6 publications

References 30 publications

Examples and Results of Aerial Photogrammetry in Archeology with UAV: Geometric Documentation, High Resolution Multispectral Analysis, Models and 3D Printing

Examples and Results of Aerial Photogrammetry in Archeology with UAV: Geometric Documentation, High Resolution Multispectral Analysis, Models and 3D Printing

Non-Invasive Survey Techniques to Study Nuragic Archaeological Sites: The Nanni Arrù Case Study (Sardinia, Italy)

Assessment of Persistent Scatterers Behaviour in Co-Polarimetric PAZ Data with Model-Backfeed Method

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