Title :
Morphological approaches to the automatic extraction of phonetic features
Author :
Hemdal, John F. ; Lougheed, Robert M.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
fDate :
2/1/1991 12:00:00 AM
Abstract :
An experiment in speech analysis in which a a parallel processor uses morphological algorithms to extract phonetic features from a spectrogram and performs an initial segmentation and labeling is described. Experiments in spectrogram reading by R. A. Cole et al. (1980) have suggested that more information is present in, and furthermore, this information may reside in the spectrogram, i.e., the speech image. The spectrogram readings of V. Zue et al. (1980) are automated by using image processing techniques in an image processor. A very fast and powerful parallel pipeline image processor, the cytocomputer, is used. The cytocomputer contains a serial pipeline of programmable processing stages, where each stage performs a single cellular transformation on the entire image
Keywords :
computerised picture processing; pipeline processing; speech analysis and processing; speech recognition; automatic extraction; cytocomputer; initial segmentation; morphological algorithms; parallel pipeline image processor; phonetic features; programmable processing stages; serial pipeline; signal processing; single cellular transformation; spectrogram labeling; spectrogram reading; speech analysis; speech image; speech recognition; Discrete Fourier transforms; Fast Fourier transforms; Feature extraction; Image processing; Image segmentation; Pipelines; Signal processing algorithms; Spectrogram; Speech processing; Speech recognition;
Journal_Title :
Signal Processing, IEEE Transactions on