Speckle noise reduction in TV holography

Guillermo H. Kaufmann; Abundio Davila; David Kerr

doi:10.1117/12.231046

5 February 1996 Speckle noise reduction in TV holography

Guillermo H. Kaufmann, Abundio Davila, David Kerr

Proceedings Volume 2730, Second Iberoamerican Meeting on Optics; (1996) https://doi.org/10.1117/12.231046
Event: Second Iberoamerican Meeting on Optics, 1995, Guanajuato, Mexico

Abstract

The recent introduction of pulsed lasers for studying transient phenomena by means of TV holography makes very difficult the analysis of fringe patterns by conventional techniques. For this reason, previously to the evaluation of the phase distribution, digital filters must be applied to reduce speckle noise. In this paper some after fringe generation techniques for speckle noise reduction are compared: three methods commonly used in synthetic aperture radar imagery, a scale-space nonlinear filter and a de-noising method based on the use of wavelet transforms.

Citation Download Citation

Guillermo H. Kaufmann, Abundio Davila, and David Kerr "Speckle noise reduction in TV holography", Proc. SPIE 2730, Second Iberoamerican Meeting on Optics, (5 February 1996); https://doi.org/10.1117/12.231046

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