Pulse Phase Thermography for Panel Paintings Inspection in Mid-wave and Long-wave Infrared Bands
Résumé
Active infrared thermography has demonstrated an ability to retrieve critical sub-surface level information relevant to
historical conservation efforts aiming to better understand and preserve multi-layered panel paintings. Complementary
use of two Telops infrared cameras (Mid and Long Wave IR), a pulsed thermography system, and pulsed phase
thermography processing software, has shown an ability to detect underlying drawings and pentimenti [1]. Further
developments on this work have now shown an ability to detect structural components in situ, and preparatory surface
irregularity across canvas layers. This non-destructive approach provides critical information to art preservationists and
should be considered for broader adoption.