Universality in the merging dynamics of parametric active contours: a study in MRI-based lung segmentation

Details Universality in the merging dynamics of parametric active contours: a study in MRI-based lung segmentation Universality in the merging dynamics of parametric active contours: a study in MRI-based lung segmentation

2003-09-13

arxiv.org/abs/cond-mat/0309336v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures

Scientific paper

Measurement of lung ventilation is one of the most reliable techniques of diagnosing pulmonary diseases. The time consuming and bias prone traditional methods using hyperpolarized H${}^{3}$He and ${}^{1}$H magnetic resonance imageries have recently been improved by an automated technique based on multiple active contour evolution. Mapping results from an equivalent thermodynamic model, here we analyse the fundamental dynamics orchestrating the active contour (AC) method. We show that the numerical method is inherently connected to the universal scaling behavior of a classical nucleation-like dynamics. The favorable comparison of the exponent values with the theoretical model render further credentials to our claim.

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