Method for estimating force and pressure of collision in vocal cords from high-speed laryngeal videos

摘要

The present invention relates to a collision force analysis (CFA) method for obtaining in vivoestimates of contact force and pressure in the vocal cords directly from laryngeal videoendoscopies. The method comprises the steps of: providing at least a high-speed laryngeal videoendoscopy (also called High Speed Videoendoscopy or HSV) to generate at least one image and videos of the vocal cords; pre-processing the image in a processing unit, to define a region of interest (ROI) of the location of the glottis; detecting in the processing unit, the edges of the vocal folds in the images obtained by means of the HSV; recording in the processing unit, the points of the edges detected by means of a sequence of images; estimating in the processing unit, the path of the vocal cord edge during collision throughout time; and estimating the values of contact and impact of the vocal cords by means of a collision model.