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.

Automatic integrated analysis of jaw and lilps movement in speech production / N.A.Borghese, M.Redolfi, G.Ferrigno, A.Pedotti. - In: THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA. - ISSN 0001-4966. - 101:1(1997), pp. 482-487.

Automatic integrated analysis of jaw and lilps movement in speech production

N.A.Borghese
Primo
;
1997

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/58133
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