Infrared reflectography and spectroscopic analysis of paintings.

Bibliographic reference:

HEEREN R.M.A., VAN ASPEREN DE BOER J.R.J., VAN DER WEERD J. Infrared reflectography and spectroscopic analysis of paintings.

Available at: http://www.amolf.nl/research/biomacromolecular_mass_spectrometry/molart/Surfacespec.htm

Extract:
"Multivariate analysisIn order to increase the information content in a FTIR image, Principal Component Image Analysis (PCIA) was developed for FTIR image analysis. It could be shown that PCA analysis is able to extract characteristic sets of IR absorption bands which correlate with the sample's components and greatly improve the selection process of wavenumbers used for the visualization of the different components. During 1998 these algorithms and the corresponding user interfaces have been optimized. It is now routinely used as an analytical tool in the examination of the FTIR paint-cross section data, described in that project."

Dublin Core Metadata:

Title: Infrared reflectography and spectroscopic analysis of paintings.
Creator: HEEREN R.M.A., VAN ASPEREN DE BOER J.R.J., VAN DER WEERD J.
Subject: infrared reflectography/ spectroscopic analysis/ analytical techniques/
Description: “Paintings are perceived by the human eye as a result of the reflected light in the visible region of the electromagnetic spectrum. The returned spectrum strongly depends on the absorbance characteristics of the surface of the painting. The ratio between various absorption's and reflections at different wavelengths determines the contrast and brightness of paintings. In other parts of the electromagnetic spectrum it is possible to observe different features of a painted work of art which can elucidate the creative process, chemical features of the materials used and the state of preservation of a painting. In this project we examine paintings and paint samples (embedded paint cross-sections) with a number of spectroscopic techniques as described in the description of the analytical instrumentation developments. Infrared reflectography is used to study the underdrawings of paintings, FTIR-microscopic imaging is used to study embedded paint cross-sections and FTIR-emission spectroscopy will be used to study the chemical nature of the surface of the painting. As a result of the evaluation procedure the project on spectroscopic imaging of entire paintings in the UV and VIS spectral region has been terminated.”
Publisher: MOLART
Date: 2000
Type: Text
Format: Html
Identifier:http://www.amolf.nl/research/biomacromolecular_mass_spectrometry/molart/Surfacespec.html
Source: None
Language: En
Relation: -
Coverage: International
Rights: MOLART