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Proceedings Paper

Estimation of diffuse reflectance spectrum from RGB values by the synthesis of new colors for tissue measurements
Author(s): Shuo Chen; Quan Liu
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Paper Abstract

A modified Wiener estimation method is presented for the accurate estimation of diffuse reflectance spectra from RGB values. In this method, the original RGB values are combined with a set of synthetic optical filters to generate another new three color values by using the system matrix. A modified Wiener matrix can then be created with the RGB values and the new color values, which will yield more accurate estimation because of the new color information incorporated. This method is tested on in-vivo color measurements from 200 skin sites in 10 volunteers. The results show that the proposed method improves the accuracy of the estimated diffuse reflectance spectra significantly compared with the traditional Wiener estimation method. Because of the fast computation in Wiener estimation, this method could be potentially developed for a cost effective alternative to a spectral imager.

Paper Details

Date Published: 22 February 2012
PDF: 6 pages
Proc. SPIE 8214, Advanced Biomedical and Clinical Diagnostic Systems X, 821406 (22 February 2012); doi: 10.1117/12.906769
Show Author Affiliations
Shuo Chen, Nanyang Technological Univ. (Singapore)
Quan Liu, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 8214:
Advanced Biomedical and Clinical Diagnostic Systems X
Tuan Vo-Dinh; Anita Mahadevan-Jansen; Warren S. Grundfest M.D., Editor(s)

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