Document Detail

Automatic integrated analysis of jaw and lip movement in speech production.
MedLine Citation:
PMID:  9000738     Owner:  NLM     Status:  MEDLINE    
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.
N A Borghese; G Ferrigno; M Redolfi; A Pedotti
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  101     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  1997 Jan 
Date Detail:
Created Date:  1997-02-12     Completed Date:  1997-02-12     Revised Date:  2006-12-27    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  482-7     Citation Subset:  IM    
Istituto Neuroscienze Bioimmagini-C.N.R., Milano, Italy.
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MeSH Terms
Jaw / physiology*
Lip / physiology*
Models, Anatomic
Movement / physiology*
Speech / physiology*
Speech Production Measurement*

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