Optical-flow kymograms and glottovibrograms: A new way to present high-speed data for laryngeal assessment

Abstract:

The use of high-speed videoendoscopy (HSV) in combination with image-processing tech- niques is the most promising approach to investigate vocal-folds vibration and laryngeal dynamics in speech and singing. The current challenge is to pro- vide facilitative and informative playbacks for clinical and research purposes. We present three new facilita- tive playbacks using an optical-flow framework (OF), which has the main advantage of requiring no glottis segmentation. The method has been tested on a data- base of 60 HSV sequences, which covers different voice qualities for spoken and sung vowels. The new data representations have been compared with com- monly used facilitative playbacks.

Año de publicación:

2015

Keywords:

• Playbacks
• Motion field
• Glottal dynamics
• optical flow
• High-speed videoendoscopy

Fuente:

scopus