scholarly journals The Fortress Beneath: Ground Penetrating Radar Imaging of the Citadel at Alcatraz: 1. A Guide for Interpretation

Heritage ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1328-1347
Author(s):  
Mark E. Everett ◽  
Timothy S. DeSmet ◽  
Robert R. Warden ◽  
Henry A. Ruiz-Guzman ◽  
Peter Gavette ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Ground Truth ◽  
Companion Paper ◽  
Evaluation Tool ◽  
Facies Classification ◽  
Central Interest ◽  
Advanced Analysis ◽  
Ground Penetrating ◽  
The 19Th Century

Ground-penetrating radar has emerged as a prominent non-destructive evaluation tool for the study of inaccessible subsurface elements of cultural heritage structures. Often of central interest is the desire to image the remains of a pre-existing historic structure that is located directly beneath a more recently built one. The interpretation of GPR images in such cases is usually difficult due to ambiguities caused by the presence of pervasive clutter, environmental noise, and overlapping target signatures. Sites with abundant ground truth allow for more confident interpretations and serve as a useful testbed to assist similar studies at other places, where little or no ground truth is available. This study reports GPR interpretations of structures belonging to the 19th century Citadel beneath the main prison cellhouse at Alcatraz. At this site, lidar scans, direct observations, and historical documents are available to facilitate identification of radar target signatures. A general interpretation of the acquired radargrams is made in this paper, while the companion paper presents more advanced analysis of target signatures based on curvelet image processing. This study points to the development of a radar facies classification scheme that is specific to cultural heritage investigations.

scholarly journals Advanced Inversion Techniques for Ground Penetrating Radar

2017 ◽  
pp. 37-42 ◽  
Author(s):  
Alessandro Fedeli ◽  
Matteo Pastorino ◽  
Andrea Randazzo
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Civil Engineering ◽  
Needed Information ◽  
Ground Penetrating ◽  
Inversion Techniques

Ground Penetrating Radar (GPR) systems arenowadays standard inspection tools in several application areas, such as subsurface prospecting, civil engineering and cultural heritage monitoring. Usually, the raw output of GPR isprovided as a B-scan, which has to be further processed inorder to extract the needed information about the inspectedscene. In this framework, inversescattering-based approachesare gaining an ever-increasing interest, thanks to their capabil-ities of directly providing images of the physical and dielectricproperties of the investigated areas. In this paper, some advances in the development of such inversion techniques in theGPR field are revised and discussed.

scholarly journals Combined Use of 3D Metric Survey and GPR for the Diagnosis of the Trapezophoros with Two Griffins Attacking a Doe of Ascoli Satriano (Foggia, Italy)

Geosciences ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 307
Author(s):  
Marilena Cozzolino ◽  
Andrea Di Meo ◽  
Vincenzo Gentile ◽  
Paolo Mauriello ◽  
Enza Zullo
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Visual Inspection ◽  
Careful Analysis ◽  
Preventive Strategies ◽  
State Of Health ◽  
Noninvasive Techniques ◽  
Combined Use ◽  
The Subject ◽  
Ground Penetrating

Protection and conservation are not feasible without a deeper knowledge of the cultural heritage of the subject of intervention. A careful analysis of documentation, a detailed visual inspection of surfaces, and a systematic diagnosis of the inner properties are the basis for planning preventive strategies of restoration. Digital noninvasive techniques represent an advantageous tool with useful outputs to estimate the state of health of cultural heritage in order to minimize the progress of degradation. This paper deals with a 3D metric survey through photogrammetry and ground-penetrating radar (GPR) tests applied to the study of the trapezophoros with two griffins attacking a doe of Ascoli Satriano, a masterpiece of ancient art that needs to be protected. This work provided information on both visible and hidden defects, such as numerous cracks that affect the sculpture.

Ground-penetrating radar resolution in cultural heritage applications

2012 ◽  
Vol 10 (1) ◽  
pp. 77-87 ◽  
Author(s):  
Vega Pérez-Gracia ◽  
Ramón González-Drigo ◽  
Roger Sala
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Radar Resolution ◽  
Ground Penetrating

scholarly journals Non-Invasive Moisture Detection for the Preservation of Cultural Heritage

Heritage ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 163-170 ◽  
Author(s):  
Pier Barone ◽  
Carlotta Ferrara
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Critical Issue ◽  
Established Method ◽  
Heritage Sites ◽  
Non Invasive ◽  
Wall Structures ◽  
Moisture Detection ◽  
Ground Penetrating ◽  
Non Destructive

Moisture damage is the most critical issue regarding the preservation and integrity of cultural heritage sites. The electromagnetic (EM) sensitivity to the presence of moisture, in both soils and structural materials, is a well-known phenomenon. Thereby, studying the EM response to the presence of moisture, in order to prevent the damages done to sites of cultural heritage, is a well-established method. This paper will discuss the ability of a geophysical non-destructive technique (NDT), present in a Ground Penetrating Radar (GPR) system, to investigate a very precious building in Rome that is affected by a moisture problem (the Turkish Room at Villa Medici). This geophysical instrument is able to locate and estimate the extent of water ingression, which can aid in the development of restoration plans before permanent damage occurs. The main objective of this paper is to help restorers understand the related hazards, due to the presence of moisture in the wall structures, in real-time and to rapidly and non-invasively develop strategies for the preservation of cultural heritage sites.

Ground-Penetrating Radar, Chain Drag, and Ground Truth

2008 ◽  
Vol 2044 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Sherif Yehia ◽  
Osama Abudayyeh ◽  
Ikhlas Abdel-Qader ◽  
Ammar Zalt
Keyword(s):  
Ground Penetrating Radar ◽  
Ground Truth ◽  
Ground Penetrating

scholarly journals LASER SCANNER TECHNOLOGY, GROUND-PENETRATING RADAR AND AUGMENTED REALITY FOR THE SURVEY AND RECOVERY OF ARTISTIC, ARCHAEOLOGICAL AND CULTURAL HERITAGE

2017 ◽  
Vol IV-4/W4 ◽  
pp. 123-127
Author(s):  
V. Barrile ◽  
G. Bilotta ◽  
G. M. Meduri ◽  
D. De Carlo ◽  
A. Nunnari
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Cultural Heritage ◽  
Real World ◽  
Ground Penetrating Radar ◽  
Laser Scanner ◽  
Textual Information ◽  
Virtual Objects ◽  
Laser Scanners ◽  
Ground Penetrating

In this study, using technologies such as laser scanner and GPR it was desired to see their potential in the cultural heritage. Also with regard to the processing part we are compared the results obtained by the various commercial software and algorithms developed and implemented in Matlab. Moreover, Virtual Reality and Augmented Reality allow integrating the real world with historical-artistic information, laser scanners and georadar (GPR) data and virtual objects, virtually enriching it with multimedia elements, graphic and textual information accessible through smartphones and tablets.

Ground-Penetrating Radar Applications in Cultural Heritage

1997 ◽  
pp. 213-226 ◽  
Author(s):  
V. Pérez ◽  
F. García ◽  
J. Clapés ◽  
R. Osorio ◽  
J. O. Caselles ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Ground Penetrating Radar ◽  
Radar Applications ◽  
Ground Penetrating
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