Measurement of Vocal Fold Features in Videokymography Images

0380797 - ÚTIA 2014 DE eng A - Abstract
Sedlář, Jiří - Novozámský, Adam - Švec, J.G. - Zitová, Barbara - Flusser, Jan
Measurement of Vocal Fold Features in Videokymography Images.
Proc. BioImage Informatics. Dresden: Max Planck Institute, CBG, 2012. s. 53.
[Bioimage Informatics. 16.09.2012-19.09.2012, Dresden]
R&D Projects: GA ČR GAP103/11/1552
Keywords : videokymography * vocal folds measurement * image processing
Subject RIV: JD - Computer Applications, Robotics
http://library.utia.cas.cz/separaty/2013/ZOI/sedlar-measurement of vocal fold features in videokymography images.pdf

Videokymography is a novel video recording technique used in laryngology and phoniatrics for examination of vocal folds. A videokymographic camera acquires brightness values only in one row but with a high-speed rate of 7200 lines/s. It can thus capture gradual movements of vocal folds, albeit in one dimension. The resulting videokymogram is a spatio-temporal image of vocal fold vibrations along a line perpendicular to the glottal dorsoventral axis over a short period of time. The advantages of videokymography include low costs and low amount of data to process. Manual analysis of videokymograms is, however, difficult and time-consuming, mainly due to noise, reflections and low contrast in the images as well as high number of vocal fold parameters. The possibility of computer-aided diagnostics is thus of great interest. The objective of this project was to develop (semi)automatic methods for measurement of selected vocal fold features.
Permanent Link: http://hdl.handle.net/11104/0220516