Abstract：
:Curve and surface thinning are widely-used skeletonization techniques for modeling objects in three dimensions. In the case of disordered porous media analysis, however, neither is really efficient since the internal geometry of the object is usually composed of both rod and plate shapes. This paper presents an alternative to compute a hybrid shape-dependent skeleton and its application to porous media. The resulting skeleton combines 2D surfaces and 1D curves to represent respectively the plate-shaped and rod-shaped parts of the object. For this purpose, a new technique based on neural networks is proposed: cascade combinations of complex wavelet transform (CWT) and complex-valued artificial neural network (CVANN). The ability of the skeleton to characterize hybrid shaped porous media is demonstrated on a trabecular bone sample. Results show that the proposed method achieves high accuracy rates about 99.78%-99.97%. Especially, CWT (2nd level)-CVANN structure converges to optimum results as high accuracy rate-minimum time consumption.
journal_name
J Med Systjournal_title
Journal of medical systemsauthors
Jennane R,Aufort G,Benhamou CL,Ceylan M,Ozbay Y,Ucan ONdoi
10.1007/s10916-010-9495-ysubject
Has Abstractpub_date
2012-04-01 00:00:00pages
497-510issue
2eissn
0148-5598issn
1573-689Xjournal_volume
36pub_type
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