The paper entitled "Holographic particle tracking using Wigner–Ville distribution" by Prof. Dr. Joewono Widjaja and Miss Porntip Chuamchaitrakool has been published in Optics and Lasers in Engineering Journal (in press). The full paper has been available on line since 16 October 2012 via ELSEVIER Database(http://dx.doi.org/10.1016/j.optlaseng.2012.09.009) The paper is to demonstrate a tracking of small particles using the Wigner-Ville distribution.

How to track small particles using the Wigner-Ville distribution ?

In particle holograms, depth information of particle is encoded as
frequency of a chirp signal. By determining the local frequency of the signal using the Wigner-Ville distribution (see figure), we can extract 3-D position of the particle.