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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 10 — Jul. 19, 2010

Enhanced visualization of oral cavity for early inflamed tissue detection

Hsiang-Chen Wang, Yung-Tsan Chen, Jui-Teng Lin, Chun-Ping Chiang, and Fang-Hsuan Cheng  »View Author Affiliations


Optics Express, Vol. 18, Issue 11, pp. 11800-11809 (2010)
http://dx.doi.org/10.1364/OE.18.011800


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Abstract

We describe a color image reconstruction method that enables both direct visualization and direct digital image acquisition from one oral tissue by using various light sources and color compensating filters. In this method, the image of the oral tissue with white light emitting diodes (LEDs) with blue color compensating filter has a larger color difference between the normal and inflamed tissues. The enhanced visualization comes from the white light color mixing between the red normal tissue and bluish white light from the LEDs. With our method, we evaluate the perceived tissue reflectance in each pixel of the image and color reproduction with different illuminated spectra. Our approach to enhancement of visually perceived color difference between normal and inflamed oral tissue involves optimization of illumination and observation conditions by allowing a significant optical contrast of illuminated spectrum to reach the observer’s eyes. In comparison with a conventional daylight LED flashlight, a LED with blue filter as the illuminant for oral cavity detection enhances the color difference between normal and inflamed tissues by 32%.

© 2010 OSA

OCIS Codes
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(170.2945) Medical optics and biotechnology : Illumination design

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: April 1, 2010
Revised Manuscript: May 10, 2010
Manuscript Accepted: May 12, 2010
Published: May 19, 2010

Virtual Issues
Vol. 5, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Hsiang-Chen Wang, Yung-Tsan Chen, Jui-Teng Lin, Chun-Ping Chiang, and Fang-Hsuan Cheng, "Enhanced visualization of oral cavity for early inflamed tissue detection," Opt. Express 18, 11800-11809 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-18-11-11800


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