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Proceedings Paper

Particle tracking from in-line holograms by using single wavelet coefficient
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Paper Abstract

We propose a new digital method for tracking position of particles from in-line holograms by using single wavelet coefficient. By computing a wavelet transform of the 1-D intensity profile of a hologram, resultant wavelet coefficients provide space-varying frequency information of an interference pattern. Our study finds that a dilation which is given by the maximum value of the real wavelet coefficient appeared at the center position of the interference pattern is determined by a recording distance and a wavelength of a coherent illuminating light. Therefore, this dilation can be used for extracting the recording distance of particles from the holograms. A feasibility of this method is experimentally verified by analyzing holograms of a line object.

Paper Details

Date Published: 3 April 2008
PDF: 5 pages
Proc. SPIE 6793, International Workshop and Conference on Photonics and Nanotechnology 2007, 679305 (3 April 2008); doi: 10.1117/12.798951
Show Author Affiliations
S. Soontaranon, Suranaree Univ. of Technology (Thailand)
J. Widjaja, Suranaree Univ. of Technology (Thailand)


Published in SPIE Proceedings Vol. 6793:
International Workshop and Conference on Photonics and Nanotechnology 2007

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