Vocal tract area functions from magnetic resonance (MR) images.
نویسندگان
چکیده
منابع مشابه
Vocal tract area functions from magnetic resonance imaging.
There have been considerable research efforts in the area of vocal tract modeling but there is still a small body of information regarding direct 3-D measurements of the vocal tract shape. The purpose of this study was to acquire, using magnetic resonance imaging (MRI), an inventory of speaker-specific, three-dimensional, vocal tract air space shapes that correspond to a particular set of vowel...
متن کاملComparison of magnetic resonance imaging-based vocal tract area functions obtained from the same speaker in 1994 and 2002.
A new set of area functions for vowels has been obtained with magnetic resonance imaging from the same speaker as that previously reported in 1996 [Story et al., J. Acoust. Soc. Am. 100, 537-554 (1996)]. The new area functions were derived from image data collected in 2002, whereas the previously reported area functions were based on magnetic resonance images obtained in 1994. When compared, th...
متن کاملEstimation of Vocal Tract Area Function from Magnetic Resonance Imaging: Preliminary Results
A method has been developed for three-dimensional reconstruction of the vocal tract shape and for the calculation of area function from magnetic resonance imaging (MRI). MR images were acquired and analyzed for 6 German long vowels uttered by one subject. The resulting vocal tract area functions are the basis for the calculation of formant frequencies. Conformity with acoustically measured form...
متن کاملToward Automatic Vocal Tract Area Function Estimation from Accelerated Three-dimensional Magnetic Resonance Imaging
Vocal tract area function estimation from three-dimensional (3D) volumetric dataset often involves complex and manual procedures such as oblique slice cutting and image segmentation. We introduce a semi-automatic method for estimating vocal tract area function from 3D Magnetic Resonance Imaging (MRI) datasets. The method was implemented on a custom MATLAB graphical user interface and computes t...
متن کاملTowards the automatic study of the vocal tract from magnetic resonance images.
Over the last few decades, researchers have been investigating the mechanisms involved in speech production. Image analysis can be a valuable aid in the understanding of the morphology of the vocal tract. The application of magnetic resonance imaging to study these mechanisms has been proven to be reliable and safe. We have applied deformable models in magnetic resonance images to conduct an au...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1991
ISSN: 0001-4966
DOI: 10.1121/1.401070