Local decorrelation of speckle patterns scattered by a surface is used for nondestructive evaluation of the state of conservation of wooden artifacts. Some experiments have been carried out on models with simulated internal flaws and on real, ancient, wooden panel paintings. The setup is very simple and can easily be used by nonoptically skilled operators.
© 1997 Optical Society of America
Original Manuscript: February 25, 1997
Revised Manuscript: May 22, 1997
Published: November 10, 1997
G. Schirripa Spagnolo, D. Ambrosini, and D. Paoletti, "Image decorrelation for in situ diagnostics of wooden artifacts," Appl. Opt. 36, 8358-8362 (1997)