Using Ultrasound Imaging to Create Augmented Visual Biofeedback for Articulatory Practice

Ultrasound images of the tongue surface can be used to provide real-time visual feedback for clinical practitioners and speakers adjusting pronunciation patterns. However, rapid and complex movements of the tongue can be difficult to interpret and directly relate to desired changes. We are developing a method for simplified visual feedback controlled by efficient, real-time tracking of tongue contours in ultrasound images. Our feedback and control paradigm are briefly discussed, and video of a potential game-like biofeedback stimulus is demonstrated.