Analysis of thresholding techniques for asymmetrical annular flow image

Author

Umar, Muhamad Suhaidi ; Ismail, Idris

Author_Institution

Electr. & Electron. Dept., Univ. Teknol. PETRONAS, Tronoh, Malaysia

fYear

2012

fDate

16-17 July 2012

Firstpage

322

Lastpage

327

Abstract

This paper present the result of a study the behaviour of asymmetrical annular two-phase gas-liquid flow at different gas and liquid flow rate by using several thresholding techniques. The behaviour of annular flow is analysed base on liquid film thickness which is calculated after thresholding process. Thresholding techniques are applied on the images which are captured by Electrical Capacitance Tomography (ECT) in vertical upward flow. The results at the end of this report show which thresholding techniques that able to yield good thresholding images and show the liquid film thickness of annular two-phase flow at different gas and liquid flow rate.

Keywords

computational fluid dynamics; computerised tomography; image segmentation; liquid films; mechanical engineering computing; two-phase flow; ECT; asymmetrical annular flow image; asymmetrical annular two-phase gas-liquid flow; electrical capacitance tomography; gas flow rate; liquid film thickness; liquid flow rate; thresholding image; thresholding process; thresholding technique; vertical upward flow; Control systems; Electrical capacitance tomography; Films; Fluid flow; Histograms; Liquids; Noise; annular flow; electrical capacitance tomography; thresholding; two-phase flow;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and System Graduate Research Colloquium (ICSGRC), 2012 IEEE

Conference_Location

Shah Alam, Selangor

Print_ISBN

978-1-4673-2035-1

Type

conf

DOI

10.1109/ICSGRC.2012.6287185

Filename

6287185