Abstract
The main goal of this work was the non-destructive testing (NDT) of an ancient fresco (15th century) preserved in the Santa Maria di Collemaggio Church (L'Aquila, Italy) and damaged after the 2009 earthquake. Active infrared thermography (IRT), near-infrared (NIR) reflectography and ultraviolet imaging (UV) were used. In addition, the state of the fresco prior to the earthquake was analyzed by electronic speckle pattern interferometry (ESPI), digital speckle correlation (DSC), raking light, tap, and chemical NDT techniques. The use of these techniques was important for the monitoring of new damages and for a comparison between the results over the years. Square heating thermography (SHT) data were processed using principal component thermography (PCT) and pulsed phase thermography (PPT) algorithms, in order to improve the defects' signature and to reduce the impact of non-uniform heating and emissivity variations due to the painting's pigments. A multi-analysis approach, segmentation operators and a specific data correlation method emphasize the overall study of the fresco. Furthermore, the facade and the high altar area were inspected by passive thermography and ground-penetrating radar (GPR), respectively. In the present case, the combined use of NDT techniques was useful to fill in the gaps in the construction history of the building.
| Original language | English |
|---|---|
| Pages (from-to) | 367-390 |
| Number of pages | 24 |
| Journal | International Journal of Architectural Heritage |
| Volume | 9 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jan 2015 |
| Externally published | Yes |
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Keywords
- Active infrared thermography
- Church
- Coin tap test
- Earthquake
- Electronic speckle pattern interferometry
- Fresco
- Near-infrared reflectography
- Raking light
- Segmentation algorithms
- Speckle decorrelation
ASJC Scopus subject areas
- Conservation
- Architecture
- Visual Arts and Performing Arts
Cite this
Santa Maria di Collemaggio Church (L'Aquila, Italy) : Historical reconstruction by non-destructive testing techniques. / Sfarra, Stefano; Bendada, Abdelhakim; Ibarra-Castanedo, Clemente; Ambrosini, Dario; Paoletti, Domenica; Maldague, Xavier.
In: International Journal of Architectural Heritage, Vol. 9, No. 4, 01.01.2015, p. 367-390.Research output: Contribution to journal › Review article
}
TY - JOUR
T1 - Santa Maria di Collemaggio Church (L'Aquila, Italy)
T2 - Historical reconstruction by non-destructive testing techniques
AU - Sfarra, Stefano
AU - Bendada, Abdelhakim
AU - Ibarra-Castanedo, Clemente
AU - Ambrosini, Dario
AU - Paoletti, Domenica
AU - Maldague, Xavier
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The main goal of this work was the non-destructive testing (NDT) of an ancient fresco (15th century) preserved in the Santa Maria di Collemaggio Church (L'Aquila, Italy) and damaged after the 2009 earthquake. Active infrared thermography (IRT), near-infrared (NIR) reflectography and ultraviolet imaging (UV) were used. In addition, the state of the fresco prior to the earthquake was analyzed by electronic speckle pattern interferometry (ESPI), digital speckle correlation (DSC), raking light, tap, and chemical NDT techniques. The use of these techniques was important for the monitoring of new damages and for a comparison between the results over the years. Square heating thermography (SHT) data were processed using principal component thermography (PCT) and pulsed phase thermography (PPT) algorithms, in order to improve the defects' signature and to reduce the impact of non-uniform heating and emissivity variations due to the painting's pigments. A multi-analysis approach, segmentation operators and a specific data correlation method emphasize the overall study of the fresco. Furthermore, the facade and the high altar area were inspected by passive thermography and ground-penetrating radar (GPR), respectively. In the present case, the combined use of NDT techniques was useful to fill in the gaps in the construction history of the building.
AB - The main goal of this work was the non-destructive testing (NDT) of an ancient fresco (15th century) preserved in the Santa Maria di Collemaggio Church (L'Aquila, Italy) and damaged after the 2009 earthquake. Active infrared thermography (IRT), near-infrared (NIR) reflectography and ultraviolet imaging (UV) were used. In addition, the state of the fresco prior to the earthquake was analyzed by electronic speckle pattern interferometry (ESPI), digital speckle correlation (DSC), raking light, tap, and chemical NDT techniques. The use of these techniques was important for the monitoring of new damages and for a comparison between the results over the years. Square heating thermography (SHT) data were processed using principal component thermography (PCT) and pulsed phase thermography (PPT) algorithms, in order to improve the defects' signature and to reduce the impact of non-uniform heating and emissivity variations due to the painting's pigments. A multi-analysis approach, segmentation operators and a specific data correlation method emphasize the overall study of the fresco. Furthermore, the facade and the high altar area were inspected by passive thermography and ground-penetrating radar (GPR), respectively. In the present case, the combined use of NDT techniques was useful to fill in the gaps in the construction history of the building.
KW - Active infrared thermography
KW - Church
KW - Coin tap test
KW - Earthquake
KW - Electronic speckle pattern interferometry
KW - Fresco
KW - Near-infrared reflectography
KW - Raking light
KW - Segmentation algorithms
KW - Speckle decorrelation
UR - http://www.scopus.com/inward/record.url?scp=84926376551&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84926376551&partnerID=8YFLogxK
U2 - 10.1080/15583058.2013.794376
DO - 10.1080/15583058.2013.794376
M3 - Review article
VL - 9
SP - 367
EP - 390
JO - International Journal of Architectural Heritage
JF - International Journal of Architectural Heritage
SN - 1558-3058
IS - 4
ER -