Image processing applied to laser holographic interference fringes

Author

Zhu, Jinrong ; Zhou, Huaichun ; Wei, Lv ; Huang, Suyi

Author_Institution

Sch. of Energy & Power Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

3

fYear

2010

fDate

16-18 April 2010

Abstract

Holographic interferogram of axisymmetric ethylene diffusion flame is obtained using double-exposure holographic interferometry. The distribution of infinitely wide fringes is recorded by digital camera. Image processing is completed employing all raw data including peak and valley data and transition point data for a given height of interference fringe pattern. The quantity of effective fringes is confirmed and fringes phase extraction is carried out. The analysis indicates that the observed fringes of holographic reproduction is not all interference fringes; In the central area of phase distribution, the gradient of interference fringes is so small that it is vulnerable to impact of noise; In the large gradient region of phase distribution, phase distribution is nearly linear. The effect of various extraction methods using all raw data is similar.

Keywords

cameras; holographic interferometry; image processing; axisymmetric ethylene diffusion flame; digital camera; double-exposure holographic interferometry; fringes phase extraction; holographic interferogram; holographic reproduction; image processing; infinitely wide fringes; interference fringe pattern; laser holographic interference fringes; phase distribution; Data mining; Digital cameras; Fires; Holography; Image processing; Interference; Optical interferometry; Power engineering and energy; Spatial resolution; Temperature measurement; double-exposure; fringe; holographic interferometry; image processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Engineering and Technology (ICCET), 2010 2nd International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-6347-3

Type

conf

DOI

10.1109/ICCET.2010.5485802

Filename

5485802