Abstract
A method for thermographic testing of ancient wall frescos is described. Experimental results were obtained by testing the Fogolino fresco in Bergamo, Italy, using a transient thermal nondestructive testing technique. It was found that the main difficulties in testing the fresco were caused by nonuniform surface patterns in both the optical and infrared (thermal) wavelength ranges. This multiwavelength surface clutter leads to numerous artifacts when applying sophisticated data processing algorithms such as dynamic thermal tomography. A three dimensional data filtering technique is proposed that will take into account both uneven heating and lateral heat diffusion, thus diminishing the effect of surface clutter.
| Original language | English |
|---|---|
| Pages (from-to) | 452-460 |
| Number of pages | 9 |
| Journal | Materials Evaluation |
| Volume | 60 |
| Issue number | 3 |
| Publication status | Published - 2002 |
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Keywords
- Discontinuity characterization
- Fresco
- Infrared thermography
- Lateral heat diffusion
- Nondestructive testing
- Thermal tomography
ASJC Scopus subject areas
- Materials Science (miscellaneous)
Cite this
Infrared thermographic nondestructive testing of frescos : Thermal modeling and image processing of three dimensional heat diffusion phenomena. / Vavilov, V.; Marinetti, S.; Grinzato, E.; Bison, P. G.; Dal Toè, S.; Burleigh, D.
In: Materials Evaluation, Vol. 60, No. 3, 2002, p. 452-460.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Infrared thermographic nondestructive testing of frescos
T2 - Thermal modeling and image processing of three dimensional heat diffusion phenomena
AU - Vavilov, V.
AU - Marinetti, S.
AU - Grinzato, E.
AU - Bison, P. G.
AU - Dal Toè, S.
AU - Burleigh, D.
PY - 2002
Y1 - 2002
N2 - A method for thermographic testing of ancient wall frescos is described. Experimental results were obtained by testing the Fogolino fresco in Bergamo, Italy, using a transient thermal nondestructive testing technique. It was found that the main difficulties in testing the fresco were caused by nonuniform surface patterns in both the optical and infrared (thermal) wavelength ranges. This multiwavelength surface clutter leads to numerous artifacts when applying sophisticated data processing algorithms such as dynamic thermal tomography. A three dimensional data filtering technique is proposed that will take into account both uneven heating and lateral heat diffusion, thus diminishing the effect of surface clutter.
AB - A method for thermographic testing of ancient wall frescos is described. Experimental results were obtained by testing the Fogolino fresco in Bergamo, Italy, using a transient thermal nondestructive testing technique. It was found that the main difficulties in testing the fresco were caused by nonuniform surface patterns in both the optical and infrared (thermal) wavelength ranges. This multiwavelength surface clutter leads to numerous artifacts when applying sophisticated data processing algorithms such as dynamic thermal tomography. A three dimensional data filtering technique is proposed that will take into account both uneven heating and lateral heat diffusion, thus diminishing the effect of surface clutter.
KW - Discontinuity characterization
KW - Fresco
KW - Infrared thermography
KW - Lateral heat diffusion
KW - Nondestructive testing
KW - Thermal tomography
UR - http://www.scopus.com/inward/record.url?scp=0036254759&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036254759&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036254759
VL - 60
SP - 452
EP - 460
JO - Materials Evaluation
JF - Materials Evaluation
SN - 0025-5327
IS - 3
ER -