title: Automatic integrated analysis of jaw and lip movement in speech production.
abstract: A noninvasive methodology for studying the kinematics of speech production is presented. It is based on the tracking of very small and light passive markers attached to the subjects' face. Using a pair of TV cameras, the 3-D markers' positions are computed in real time, at a subpixel accuracy, by a dedicated hardware. From these data, the time course of a set of parameters which describe lip and jaw movement is computed; in addition, a semiautomatic procedure that identifies the exact onset and offset of the investigated sequences has been developed. To compare the results over different productions, a time normalization procedure based on a continuous inverse Fourier transform has been implemented.
authors.affiliation: Istituto Neuroscienze Bioimmagini-C.N.R., Milano, Italy.
authors.forename: N A
authors.initials: NA
authors.lastname: Borghese
authors.forename: G
authors.initials: G
authors.lastname: Ferrigno
authors.forename: M
authors.initials: M
authors.lastname: Redolfi
authors.forename: A
authors.initials: A
authors.lastname: Pedotti
mesh_terms: D006801:Humans; D007568:Jaw / Q000502:physiology*; D008046:Lip / Q000502:physiology*; D008953:Models, Anatomic; D009068:Movement / Q000502:physiology*; D013060:Speech / Q000502:physiology*; D013068:Speech Production Measurement