Abstract
Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular, continuous wave (CW) and low frequency THz is attracting more attention. The first application of the THz technique inherent to the cultural heritage field dates back 10 years ago. Since 2006, tangible improvements have been conducted in the refinement of the technique, with the aim to produce clear maps useful for any art restorer. In this paper, a CW THz (0.1 THz) imaging system was used to inspect paintings on canvas both in reflection and in transmission modes. In particular, two paintings were analyzed: in the first one, similar materials and painting execution of the original artwork were used, while in the second one, the canvas layer is slightly different. Flash thermography was used herein together with the THz method in order to observe the differences in results for the textile support materials. A possible application of this method for the detection of artwork forgery requires some parameterization and analysis of various materials or thickness influence which will be addressed in a future study. In this work, advanced image processing techniques including principal component thermography (PCT) and partial least squares thermography (PLST) were used to process the infrared data. Finally, a comparison of CW THz and thermographic results was conducted.
| Original language | English |
|---|---|
| Article number | 34 |
| Journal | Journal of Nondestructive Evaluation |
| Volume | 36 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Jun 2017 |
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Keywords
- Continuous wave
- Flash thermography
- Nondestructive testing
- Painting on canvas
- Terahertz imagery
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
Cite this
Non-destructive Investigation of Paintings on Canvas by Continuous Wave Terahertz Imaging and Flash Thermography. / Zhang, Hai; Sfarra, Stefano; Saluja, Karan; Peeters, Jeroen; Fleuret, Julien; Duan, Yuxia; Fernandes, Henrique; Avdelidis, Nicolas; Ibarra-Castanedo, Clemente; Maldague, Xavier.
In: Journal of Nondestructive Evaluation, Vol. 36, No. 2, 34, 01.06.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Non-destructive Investigation of Paintings on Canvas by Continuous Wave Terahertz Imaging and Flash Thermography
AU - Zhang, Hai
AU - Sfarra, Stefano
AU - Saluja, Karan
AU - Peeters, Jeroen
AU - Fleuret, Julien
AU - Duan, Yuxia
AU - Fernandes, Henrique
AU - Avdelidis, Nicolas
AU - Ibarra-Castanedo, Clemente
AU - Maldague, Xavier
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular, continuous wave (CW) and low frequency THz is attracting more attention. The first application of the THz technique inherent to the cultural heritage field dates back 10 years ago. Since 2006, tangible improvements have been conducted in the refinement of the technique, with the aim to produce clear maps useful for any art restorer. In this paper, a CW THz (0.1 THz) imaging system was used to inspect paintings on canvas both in reflection and in transmission modes. In particular, two paintings were analyzed: in the first one, similar materials and painting execution of the original artwork were used, while in the second one, the canvas layer is slightly different. Flash thermography was used herein together with the THz method in order to observe the differences in results for the textile support materials. A possible application of this method for the detection of artwork forgery requires some parameterization and analysis of various materials or thickness influence which will be addressed in a future study. In this work, advanced image processing techniques including principal component thermography (PCT) and partial least squares thermography (PLST) were used to process the infrared data. Finally, a comparison of CW THz and thermographic results was conducted.
AB - Terahertz (THz) imaging is increasingly used in the cultural heritage field. In particular, continuous wave (CW) and low frequency THz is attracting more attention. The first application of the THz technique inherent to the cultural heritage field dates back 10 years ago. Since 2006, tangible improvements have been conducted in the refinement of the technique, with the aim to produce clear maps useful for any art restorer. In this paper, a CW THz (0.1 THz) imaging system was used to inspect paintings on canvas both in reflection and in transmission modes. In particular, two paintings were analyzed: in the first one, similar materials and painting execution of the original artwork were used, while in the second one, the canvas layer is slightly different. Flash thermography was used herein together with the THz method in order to observe the differences in results for the textile support materials. A possible application of this method for the detection of artwork forgery requires some parameterization and analysis of various materials or thickness influence which will be addressed in a future study. In this work, advanced image processing techniques including principal component thermography (PCT) and partial least squares thermography (PLST) were used to process the infrared data. Finally, a comparison of CW THz and thermographic results was conducted.
KW - Continuous wave
KW - Flash thermography
KW - Nondestructive testing
KW - Painting on canvas
KW - Terahertz imagery
UR - http://www.scopus.com/inward/record.url?scp=85017161144&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85017161144&partnerID=8YFLogxK
U2 - 10.1007/s10921-017-0414-8
DO - 10.1007/s10921-017-0414-8
M3 - Article
VL - 36
JO - Journal of Nondestructive Evaluation
JF - Journal of Nondestructive Evaluation
SN - 0195-9298
IS - 2
M1 - 34
ER -