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Proceedings Paper

Nonlinear filtering of noisy interference fringes with the 2D spatially dependent filter impulse response
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Paper Abstract

Image enhancement and evaluation play an important role in modern information and measurement technologies. An important image kind is obtained in coherent systems in holography and interferometry in the form of fringe patterns. Because of the physical and technical limitations fringe patterns are often distorted under the noise influence. It is proposed new noise-immune method for fringe pattern enhancement and evaluation. Unlike conventional filtering methods, in this method a filter impulse response is formed by the local empirical histogram modification with the spatial weighting function inside a dimensionally-varied area dependent on the local fringe intensity distribution. High efficiency of the method was verified experimentally when processing real noisy distorted fringe patterns.

Paper Details

Date Published: 1 April 2002
PDF: 10 pages
Proc. SPIE 4750, ICONO 2001: Quantum and Atomic Optics, High-Precision Measurements in Optics, and Optical Information Processing, Transmission, and Storage, (1 April 2002); doi: 10.1117/12.464481
Show Author Affiliations
Igor P. Gurov, St. Petersburg Institute of Fine Mechanics and Optics (Russia)
Mikhail V. Volkov, St. Petersburg Institute of Fine Mechanics and Optics (Russia)


Published in SPIE Proceedings Vol. 4750:
ICONO 2001: Quantum and Atomic Optics, High-Precision Measurements in Optics, and Optical Information Processing, Transmission, and Storage

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