Share Email Print
cover

Journal of Biomedical Optics

New laryngoscope for quantitative high-speed imaging of human vocal folds vibration in the horizontal and vertical direction
Author(s): Nibu A. George; Frits F. M. de Mul; Qingjun Qiu; Gerhard Rakhorst; Harm K. Schutte
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

We report the design of a novel laser line-triangulation laryngoscope for the quantitative visualization of the three-dimensional movements of human vocal folds during phonation. This is the first successful in vivo recording of the three-dimensional movements of human vocal folds in absolute values. Triangulation images of the vocal folds are recorded at the rate of 4000 fps with a resolution of 256×256 pixels. A special image-processing algorithm is developed to precisely follow the subpixel movements of the laser line image. Vibration profiles in both horizontal and vertical directions are calibrated and measured in absolute SI units with a resolution of ±50 µm. We also present a movie showing the vocal folds dynamics in vertical cross section.

Paper Details

Date Published: 1 November 2008
PDF: 5 pages
J. Biomed. Opt. 13(6) 064024 doi: 10.1117/1.3041164
Published in: Journal of Biomedical Optics Volume 13, Issue 6
Show Author Affiliations
Nibu A. George, Groningen Univ. Medical Ctr. (Netherlands)
Frits F. M. de Mul, Univ. of Groningen (Netherlands)
Qingjun Qiu, Groningen Univ. Medical Ctr. (Netherlands)
Gerhard Rakhorst, Groningen Univ. Medical Ctr. (Netherlands)
Harm K. Schutte, Groningen Univ. Medical Ctr. (Netherlands)


© SPIE. Terms of Use
Back to Top