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Quantifying the complexity of excised larynx vibrations from high-speed imaging using spatiotemporal and nonlinear dynamic analyses
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10.1063/1.2784384
/content/aip/journal/chaos/17/4/10.1063/1.2784384
http://aip.metastore.ingenta.com/content/aip/journal/chaos/17/4/10.1063/1.2784384
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) The experimental system consists of an excised larynx setup and a high-speed camera.

Image of FIG. 2.
FIG. 2.

High-speed image sequences of excised larynges. (a) Regular vibratory pattern, where the time interval between successive frames is . (b) Irregular vibratory pattern, where the time interval between successive frames is .

Image of FIG. 3.
FIG. 3.

(Color) Regular vibratory pattern at of a typical excised larynx. (a) Spatiotemporal plots of . (b) Power spectra of the first two temporal coefficients and . (c) The dependence of on the time delay and the spatial index (the upper curve), and the maximal correlation function vs spatial index (the lower curve), where the spatial index of the reference point is . (d) The relative energy vs eigenmode number .

Image of FIG. 4.
FIG. 4.

(Color) Irregular vibratory pattern at of a typical excised larynx. (a) Spatiotemporal plots of . (b) Power spectra of the first two temporal coefficients and . (c) The dependence of on the time delay and the spatial index (the upper curve), and the maximal correlation function vs spatial index (the lower curve), where the spatial index of the reference point is . (c) The relative energy vs eigenmode number .

Image of FIG. 5.
FIG. 5.

The periodic glottal area signal. (a) Time series; (b) power spectrum; (c) the reconstructed phase space; (d) the estimated dimension vs .

Image of FIG. 6.
FIG. 6.

The aperiodic glottal area signal. (a) Time series; (b) power spectrum; (c) the reconstructed phase space; (d) the estimated dimension vs .

Image of FIG. 7.
FIG. 7.

Comparisons of the distributions of irregular vibrations and regular vibrations of 12 excised larynges using correlation length . The line inside the box marks the median, and the dots are the outlying points.

Image of FIG. 8.
FIG. 8.

Comparisons of the distributions of irregular vibrations and regular vibrations of 12 excised larynges using entropy . The line inside the box marks the median, and the dots are the outlying points.

Image of FIG. 9.
FIG. 9.

Comparisons of the distributions of irregular vibrations and regular vibrations of 12 excised larynges using correlation dimension . The line inside the box marks the median, and the dots are the outlying points.

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/content/aip/journal/chaos/17/4/10.1063/1.2784384
2007-11-15
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Quantifying the complexity of excised larynx vibrations from high-speed imaging using spatiotemporal and nonlinear dynamic analyses
http://aip.metastore.ingenta.com/content/aip/journal/chaos/17/4/10.1063/1.2784384
10.1063/1.2784384
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