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Proceedings Paper

Multispectral imaging approach for simplified non-invasive in-vivo evaluation of gingival erythema
Author(s): Timo Eckhard; Eva M. Valero; Juan L. Nieves; José M. Gallegos-Rueda; Francisco Mesa
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Paper Abstract

Erythema is a common visual sign of gingivitis. In this work, a new and simple low-cost image capture and analysis method for erythema assessment is proposed. The method is based on digital still images of gingivae and applied on a pixel-by-pixel basis. Multispectral images are acquired with a conventional digital camera and multiplexed LED illumination panels at 460nm and 630nm peak wavelength. An automatic work-flow segments teeth from gingiva regions in the images and creates a map of local blood oxygenation levels, which relates to the presence of erythema. The map is computed from the ratio of the two spectral images. An advantage of the proposed approach is that the whole process is easy to manage by dental health care professionals in clinical environment.

Paper Details

Date Published: 28 February 2012
PDF: 10 pages
Proc. SPIE 8215, Design and Quality for Biomedical Technologies V, 82150O (28 February 2012); doi: 10.1117/12.907408
Show Author Affiliations
Timo Eckhard, Univ. of Granada (Spain)
Eva M. Valero, Univ. of Granada (Spain)
Juan L. Nieves, Univ. of Granada (Spain)
José M. Gallegos-Rueda, Univ. of Granada (Spain)
Francisco Mesa, Univ. of Granada (Spain)

Published in SPIE Proceedings Vol. 8215:
Design and Quality for Biomedical Technologies V
Ramesh Raghavachari; Rongguang Liang, Editor(s)

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