Abstract

A method is described for reconstructing decorative images concealed by layers of overcoatings. The method employs a nonparametric multivariate algorithm and a cellular-automaton construct to convert the near-infrared spectrum of a surface into digital images of the surface layers. The technique is potentially applicable to thé restoration of historic buildings where aging, previous restoration attempts, and even political considerations have resulted in the alteration of the original historic surfaces.

Multispectral system for reflectance reconstruction in the near-infrared region

Meritxell Vilaseca, Jaume Pujol, Montserrat Arjona, and Marta de Lasarte
Appl. Opt. 45(18) 4241-4253 (2006)

Three-dimensional simulation of near-infrared diffusion in tissue: boundary condition and geometry analysis for finite-element image reconstruction

Brian W. Pogue, Shireen Geimer, Troy O. McBride, Shudong Jiang, Ulf L. Österberg, and Keith D. Paulsen
Appl. Opt. 40(4) 588-600 (2001)

Critical computational aspects of near infrared circular tomographic imaging: Analysis of measurement number, mesh resolution and reconstruction basis

Phaneendra K. Yalavarthy, Hamid Dehghani, Brian W. Pogue, and Keith D. Paulsen
Opt. Express 14(13) 6113-6127 (2006)

Nanoscale-resolved subsurface imaging by scattering-type near-field optical microscopy

T. Taubner, F. eilmann, and R. Hillenbrand
Opt. Express 13(22) 8893-8899 (2005)

Comparison of shift-and-add and bispectrum image reconstruction methods for astronomy in the near infrared

V. A. Klückers, N. J. Wooder, J. C. Dainty, and A. J. Longmore
J. Opt. Soc. Am. A 13(7) 1577-1583 (1996)