Improved Acquisition Technique of Underdrawings in Oil-Paintings Using IR-Reflectography

Chad Weiner

List of Symbols

Theoretical Equations
S	scattering coefficient
K	absorption coefficient
Ro	reflection of an infinitely thick paint layer
X	paint layer thickness
a
b
k	contrast-ratio
RpB	paint layer reflectance of the underdrawing
RpG	paint layer reflectance of the ground
XD	hiding thickness

Approximation Equations
PUD	image of underdrawing
PVIS	visible image
PIR	infrared image
x	horizontal pixel value
y	vertical pixel value
S	scattering coefficient
K	absorption coefficient
X1	contrast variable
X2	brightness variable

Table of Contents | Thesis