Low Cost Techniques for the Digital Survey of a Minoan Architecture in the Archeological Site of Phaistos (Crete)

Aiello, D.; Buscemi, Francesca; D'Agostino, Graziana; Galizia, Mariateresa; Militello, Pietro; Santagati, Cettina

doi:10.5194/isprs-archives-xlii-2-w17-31-2019

Cited by 4 publications

(3 citation statements)

References 13 publications

(7 reference statements)

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“…Thanks to the high resolution of the point cloud (about 600 million points), it is possible to obtain a digital copy and test the level of detail of the 3D model, which is critical for subsequent investigations. Currently, the research group is testing a workflow to obtain a model with high quality RGB colour information through the low cost survey technique: Structure from Motion survey with the wide-angle lenses of GoPro Action Cam (Aiello et al, 2019b;D'Agostino et al, 2021). The aims of the present study, however, are far more reliant on the creation of a geometrically realistic model than on tenable chromatic data.…”

Section: Digital Surveymentioning

confidence: 99%

Hydraulic Risk Assessment in Archaeological Sites Supported by an Integrated Digital Survey – CFD (Computational Fluid Dynamics) Monitoring Approach

D'Agostino

Figuera

Pennisi

et al. 2021

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. This paper presents a methodological approach for analysing and evaluating hydraulic risks in complex archaeological areas, and thereby substantially improve general preservation and conservation efforts involving cultural heritage.The hypogeum of Calaforno (province of Ragusa, Sicily) represents a unique sample of rock-cut architecture in terms of size and architectural features, and an ideal candidate for the case study due to its high historical, archaeological and cultural significance, as well as its intrinsic fragility and criticality associated with hydrogeological and seismic factors.The interdisciplinary research approach involved archaeological and engineering contributions towards the development of numerical models for the assessment of hydraulic risks threatening archaeological heritage. The morphological characteristics of the site rendered the use of a Laser Scanner necessary for three-dimensional survey.The prehistoric structures currently undergoing excavation outside the main entrance of the monument have raised concerns regarding the impact of the Manna stream, which flows a few meters from the main entrance to the hypogeum, which has seen periodic flooding in some of its rooms. Simulations of these flooding events were performed in order to attain better understanding of the hydraulic phenomena influencing the site, especially regarding the dynamics associated with surface runoff.The interdisciplinary approach to this research, combining in-depth archaeological expertise with digital 3D surveying and modelling technologies, has proven fundamental to the effective monitoring of this morphologically complex site, and should perhaps be considered integral to any preventive assessment and risk management initiative involving cultural heritage.

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Section: Digital Surveymentioning

confidence: 99%

Hydraulic Risk Assessment in Archaeological Sites Supported by an Integrated Digital Survey – CFD (Computational Fluid Dynamics) Monitoring Approach

D'Agostino

Figuera

Pennisi

et al. 2021

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Different papers considered the problems related to the digital recording of narrow and complex spaces using photogrammetry. Most approaches used fisheye lenses or spherical cameras to increase the field of view and reduce the number of images, guaranteeing sufficient overlap between consecutive images (for some examples and applications in different application, see [10][11][12][13][14][15][16][17][18][19][20][21][22]).…”

Section: Introduction 1state Of the Artmentioning

confidence: 99%

Digital Documentation in Narrow Burial Spaces Using a 360° Borescope Prototype

et al. 2023

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This paper illustrates and discusses a novel method for the digital documentation of human remains in narrow spaces. A 360° borescope prototype made up of a panoramic camera and a lighting LED system was designed and assembled to acquire data in confined spaces for photogrammetric processing. A series of laboratory experiments were planned to assess the method’s validity. A modern concrete tunnel and a mock grave were surveyed using surveying instruments and a laser scanner, comparing the results with the borescope prototype. Then, data acquisition was moved to the field, i.e., in a real case study. Two burial vaults in a church containing human remains were selected and surveyed. The remains were accessible only from small breaches. The results show that using the 360° borescope is suitable for documenting narrow/confined spaces with minimum alteration of the scene. This result can be of interest for archaeological and forensic purposes, especially when the context is hardly accessible, with minimal intervention on the scene.

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“…This technique can provide valuable textural information for the examination of the historical surfaces' characteristics [1]. It can also produce data necessary to document archaeological sites of different proportions and geometries [2][3][4][5], support excavation activities [6,7], plan the conservation interventions [8,9], and in general, create reference models and systems to assist the three-dimensional integration of various multi-sensor diagnostical data [10,11]. Furthermore, the latest algorithmic developments in the domain of metric exploitation of digital images have enabled increased automation, processing velocities, accuracy, and precision [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Image-Based Multiscale Heritage Recording with Near-Infrared Data

Adamopoulos

Rinaudo

2020

IJGI

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Passive sensors, operating in the visible (VIS) spectrum, have widely been used towards the trans-disciplinary documentation, understanding, and protection of tangible cultural heritage (CH). Although, many heritage science fields benefit significantly from additional information that can be acquired in the near-infrared (NIR) spectrum. NIR imagery, captured for heritage applications, has been mostly investigated with two-dimensional (2D) approaches or by 2D-to-three-dimensional (3D) integrations following complicated techniques, including expensive imaging sensors and setups. The availability of high-resolution digital modified cameras and software implementations of Structure-from-Motion (SfM) and Multiple-View-Stereo (MVS) algorithms, has made the production of models with spectral textures more feasible than ever. In this research, a short review of image-based 3D modeling with NIR data is attempted. The authors aim to investigate the use of near-infrared imagery from relatively low-cost modified sensors for heritage digitization, alongside the usefulness of spectral textures produced, oriented towards heritage science. Therefore, thorough experimentation and assessment with different software are conducted and presented, utilizing NIR imagery and SfM/MVS methods. Dense 3D point clouds and textured meshes have been produced and evaluated for their metric validity and radiometric quality, comparing to results produced from VIS imagery. The datasets employed come from heritage assets of different dimensions, from an archaeological site to a medium-sized artwork, to evaluate implementation on different levels of accuracy and specifications of texture resolution.

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Low Cost Techniques for the Digital Survey of a Minoan Architecture in the Archeological Site of Phaistos (Crete)

Cited by 4 publications

References 13 publications

Hydraulic Risk Assessment in Archaeological Sites Supported by an Integrated Digital Survey – CFD (Computational Fluid Dynamics) Monitoring Approach

Hydraulic Risk Assessment in Archaeological Sites Supported by an Integrated Digital Survey – CFD (Computational Fluid Dynamics) Monitoring Approach

Digital Documentation in Narrow Burial Spaces Using a 360° Borescope Prototype

Enhancing Image-Based Multiscale Heritage Recording with Near-Infrared Data

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