Speckle noise removal in interference patterns by cross absolute filter: comparison with median filter

Christophe Gorecki; Jacek Mandziuk

doi:10.1117/12.212150

14 June 1995 Speckle noise removal in interference patterns by cross absolute filter: comparison with median filter

Christophe Gorecki, Jacek Mandziuk

Proceedings Volume 2544, Interferometry VII: Techniques and Analysis; (1995) https://doi.org/10.1117/12.212150
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In this paper, a new technique to reduce speckle noise from interference patterns is proposed. This method, called cross absolute filter (CAF) is well suited to the case of noisy interferograms with phase error pixels. It is demonstrated that CAF performs better than classical median-type filters, preserving more subtle details.

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Christophe Gorecki and Jacek Mandziuk "Speckle noise removal in interference patterns by cross absolute filter: comparison with median filter", Proc. SPIE 2544, Interferometry VII: Techniques and Analysis, (14 June 1995); https://doi.org/10.1117/12.212150

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KEYWORDS

Digital filtering

Nonlinear filtering

Speckle

Linear filtering

Speckle pattern

Computer simulations

Single mode fibers

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