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Proceedings Paper

Holographic particle sizing by using absolute values of the wavelet transform
Author(s): Joewono Widjaja; Siriwat Soontaranon; Toshimitsu Asakura
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Paper Abstract

A new method for sizing particle from in-line Fraunhofer holograms by using absolute values of the wavelet transform is proposed. The method gives zero-crossing points of an envelope function of the hologram which are determined by the particle size. Since the resultant zero-crossing points are functions of the dilation parameter, the frequencies of the fringes at the zero-crossing points are measured. The particle size can be finally calculated from the relationship between the frequencies with the positions of the zero-crossing points. The experimental results agree well with the theory.

Paper Details

Date Published: 12 April 2005
PDF: 5 pages
Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, (12 April 2005); doi: 10.1117/12.621667
Show Author Affiliations
Joewono Widjaja, Suranaree Univ. of Technology (Thailand)
Siriwat Soontaranon, Suranaree Univ. of Technology (Thailand)
Toshimitsu Asakura, Hokkai-Gakuen Univ. (Japan)


Published in SPIE Proceedings Vol. 5852:
Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics

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