10th Annual Conference of the International Speech Communication Association

Brighton, United Kingdom
September 6-10, 2009

Adaptation of a Predictive Model of Tongue Shapes

Chao Qin, Miguel Á. Carreira-Perpiñán

University of California at Merced, USA

It is possible to recover the full midsagittal contour of the tongue with submillimetric accuracy from the location of just 34 landmarks on it. This involves fitting a predictive mapping from the landmarks to the contour using a training set consisting of contours extracted from ultrasound recordings. However, extracting sufficient contours is a slow and costly process. Here, we consider adapting a predictive mapping obtained for one condition (such as a given recording session, recording modality, speaker or speaking style) to a new condition, given only a few new contours and no correspondences. We propose an extremely fast method based on estimating a 2D-wise linear alignment mapping, and show it recovers very accurate predictive models from about 10 new contours.

Full Paper

Bibliographic reference.  Qin, Chao / Carreira-Perpiñán, Miguel Á. (2009): "Adaptation of a predictive model of tongue shapes", In INTERSPEECH-2009, 772-775.