The Use of Ground Penetrating Radar, Thermal Camera and Laser Scanner Technology in Asphalt Crack Detection and Diagnostics

2012 ◽  
pp. 137-145 ◽  
Author(s):  
Timo Saarenketo ◽  
Annele Matintupa ◽  
Petri Varin
Keyword(s):  
Ground Penetrating Radar ◽  
Crack Detection ◽  
Laser Scanner ◽  
Thermal Camera ◽  
Ground Penetrating

Ground penetrating radar for advance ground checking and crack detection during tunneling

1998 ◽  
Author(s):  
N. P. Chubinsky ◽  
A. G. Chernokalov ◽  
S. V. Druchinin ◽  
A. Vu. Krampuls
Keyword(s):  
Ground Penetrating Radar ◽  
Crack Detection ◽  
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.

scholarly journals Integrated Geoscientific Surveys at the Church of Santa Maria della Lizza (Alezio, Italy)

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2205
Author(s):  
Lara De Giorgi ◽  
Ivan Ferrari ◽  
Francesco Giuri ◽  
Giovanni Leucci ◽  
Giuseppe Scardozzi
Keyword(s):  
Ground Penetrating Radar ◽  
Laser Scanner ◽  
Spatial Relationship ◽  
Scanner Data ◽  
Medieval Architecture ◽  
South Italy ◽  
Surrounding Areas ◽  
Ground Penetrating ◽  
Santa Maria ◽  
The Church

The church of Santa Maria della Lizza is one of the most important examples of medieval architecture in the Salento Peninsula in south Italy. In order to understand the extension and layout of the crypts, integrated ground-penetrating radar (GPR) prospections and laser scanner surveys were undertaken in the church and in the surrounding areas. The analysis of the GPR measurements revealed many anomalies that could be ascribed to unknown structures (crypts), as well as other anomalies related to the old church. The GPR data were supported by the laser scanner data establishing the spatial relationship between the surface and the level below the church.

scholarly journals Ground-based remote-sensing techniques for diagnosis of the current state and recent evolution of the Monte Perdido Glacier, Spanish Pyrenees

2018 ◽  
Vol 65 (249) ◽  
pp. 85-100 ◽  
Author(s):  
J. I. LÓPEZ-MORENO ◽  
E. ALONSO-GONZÁLEZ ◽  
O. MONSERRAT ◽  
L. M. DEL RÍO ◽  
J. OTERO ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Ground Penetrating Radar ◽  
Laser Scanner ◽  
Ice Thickness ◽  
Terrestrial Laser Scanner ◽  
Glacier Surface ◽  
Current State ◽  
Spanish Pyrenees ◽  
Remote Sensing Techniques ◽  
Ground Penetrating

ABSTRACTThis work combines very detailed measurements from terrestrial laser scanner (TLS), ground-based interferometry radar (GB-SAR) and ground-penetrating radar (GPR) to diagnose current conditions and to analyse the recent evolution of the Monte Perdido Glacier in the Spanish Pyrenees from 2011 to 2017. Thus, this is currently one of the best monitored small glacier (<0.5 km2) worldwide. The evolution of the glacier surface was surveyed with a TLS evidencing an important decline of 6.1 ± 0.3 m on average, with ice losses mainly concentrated over 3 years (2012, 2015 and 2017). Ice loss is unevenly distributed throughout the study period, with 10–15 m thinning in some areas while unchanged areas in others. GB-SAR revealed that areas with higher ice losses are those that are currently with no or very low ice motion. In contrast, sectors located beneath the areas with less ice loss are those that still exhibit noticeable ice movement (average 2–4.5 cm d─1 in summer, and annual movement of 9.98 ma─1 from ablation stakes data). GPR informed that ice thickness was generally <30 m, though locally 30–50 m. Glacier thinning is still accelerating and will lead to extinction of the glacier over the next 50 years.

scholarly journals An Epigravettian hypogeal site in the Grotta del Fiume Cave at Frasassi (northeastern Apennines, Italy): Environmental and geochronologic assessments

2020 ◽  
Vol 49 (2) ◽  
pp. 87-105
Author(s):  
Alessandro Montanari ◽  
◽  
Artur Adamek ◽  
Angelo Curatolo ◽  
Marco Ferretti ◽  
...  
Keyword(s):  
Ground Penetrating Radar ◽  
Central Italy ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
Marche Region ◽  
Late Fall ◽  
The One ◽  
Ground Penetrating ◽  
Archeological Site

In the late fall of 1986, a team of cavers from the Gruppo Speleologico Marchigiano of Ancona reported to the regional Archeological Superintendence their discovery in a room of the Grotta del Fiume Cave (Marche region of central Italy) of archeological finds such as the charcoal remains of a bonfire, a number of ibex bones, and four chert artifacts. However, since the discovery and archival of all this material, no further research or focused studies were carried out about this important archeological site. Therefore, we engaged in a thorough re-examination of this site by mapping this part of the Grotta del Fiume Cave with modern surveying approaches, including terrestrial laser scanner and ground penetrating radar. Moreover, we have radiocarbon dated a few ibex bones and also charcoal samples from the main fireplace and other smaller charcoal deposits we found scattered around the room’s floor. The chert artifacts were examined in detail and their typology classified accordingly. U-Th dating of calcite from speleothems helped us reconstruct this hypogeal environment at the time it was frequented by man. We also studied a puzzling deposit of speleothem crust slabs piled up in a corner of the cave, which may represent a funeral earthen mound. All in all, the absence of artifacts other than the four chert blades, the few ibex bones, the one main fireplace and three other minor charcoal deposits in the room, and the probable earthen mound located tens of meters underground from a now debris-sealed entrance, lead us to hypothesize that this cave room does not represent a residential dwelling but rather a worship place sporadically utilized by few representatives of a local Epigravettian hunter community.

Ground Penetrating Radar (GPR) and Mobile Laser Scanner (MLS) technologies for non-destructive analysis of transport infrastructures

2021 ◽  
Author(s):  
Luca Bianchini Ciampoli ◽  
Alessandro Calvi ◽  
Alessandro Di Benedetto ◽  
Margherita Fiani ◽  
Valerio Gagliardi
Keyword(s):  
Ground Penetrating Radar ◽  
Laser Scanner ◽  
Destructive Analysis ◽  
Ground Penetrating ◽  
Non Destructive

scholarly journals Detecting and Measuring Internal Anomalies in Tree Trunks Using Radar Data for Layer Identification

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Xiayang Xiao ◽  
Jian Wen ◽  
Zhongliang Xiao ◽  
Weilin Li
Keyword(s):  
Ground Penetrating Radar ◽  
Measurement Method ◽  
Matched Filter ◽  
Laser Scanner ◽  
Radar Data ◽  
Summer Palace ◽  
Ground Penetrating ◽  
Wooden Structures

Radar detection has proven to be an effective, nondestructive test for the determination of the quality of wood-based materials, especially in the wooden structures of ancient buildings and trees. However, the results are usually inaccurate, and it is difficult to interpret internal anomalies due to the moisture content of wood, individual differences, and other factors. In this paper, a new measurement method is proposed based on the use of ground-penetrating radar (GPR) for abnormality localization and imaging. Firstly, the time delay of the reflected signal in the inner trees is analyzed with matched filter and Hilbert detections. Secondly, the two approaches are compared with the use of a forward model, and the Hilbert algorithm is found to be more accurate. Thirdly, a laser scanner is used to collect contour data and determine the location and characteristics of internal tree anomalies. Lastly, the proposed method is tested on ancient willows at the Summer Palace. The results show that the error in the depth and area estimates of the anomalies was within 10% and 5%, respectively. Consequently, the GPR method for locating the anomalies in trees is feasible, and a laser scanner combined with contour data can present the size of the abnormal regions within the trees.

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