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