Feature extraction of particle density in a pipeline with tomography and wavelets

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Takei, Masahiro^{a; *} | Li, Hui^b | Ochi, Mitsuaki^a | Saito, Yoshifuru^c | Horii, Kiyoshi^d

Affiliations: [a] Nihon University. Dept of Mech. Eng. 1-8-14 Kanda Surugadai Tokyo, Japan 101-8308 | [b] Kagoshima University, Kagoshima Japan | [c] Hosei University, Tokyo, Japan | [d] Shirayuri College, Tokyo, Japan

Correspondence: [*] Corresponding author: Masahiro Takei, Fax: +81 3 3293 8254; E-mail: [email protected]

Abstract: A concept to extract a feature of solid-air two-phase flow in a pipeline has been launched with a combination of a capacitance-computed tomography and wavelets transform. With this concept, particle distribution images obtained by CT are transformed with discrete wavelets multiresolution. As a result, in the case of low open area ratios of the pipe cross-section, high particle densities are shown in secondary dominant levels as well as a substantial space level. The high value in the secondary level resulted from inhomogeneous density due to collision between particles.

DOI: 10.3233/JAE-2002-470

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 15, no. 1-4, pp. 423-430, 2002