Comparative study of wavelet thresholding methods for denoising electronic speckle pattern interferometry fringes
- 1 November 2001
- journal article
- research article
- Published by SPIE-Intl Soc Optical Eng in Optical Engineering
- Vol. 40 (11) , 2598-2604
Abstract
This paper presents a comparative study of different thresholding methods for speckle noise reduction in electronic speckle pattern interferometry fringes using several wavelet bases. An approach based on the removal of the wavelet subbands of the transformed image is presented. The performance of this method is analyzed and compared with the results obtained with the denoising techniques that use wavelet shrinkage. It is shown that the wavelet subband removal method reduces speckle noise and maintains image features more effectively than the wavelet shrinkage techniques based on soft and hard thresholding. © 2001 Society of Photo-Optical Instrumentation Engineers.Keywords
This publication has 15 references indexed in Scilit:
- Speckle filtering of SAR images: a comparative study between complex-wavelet-based and standard filters1997
- Wavelet Threshold Estimators for Data with Correlated NoiseJournal of the Royal Statistical Society Series B: Statistical Methodology, 1997
- An Evaluation of Synthetic Aperture Radar Noise Reduction Techniques for the Smoothing of Electronic Speckle Pattern Interferometry FringesJournal of Modern Optics, 1995
- Adaptive filter for enhancement of fringe patternsOptics and Lasers in Engineering, 1991
- Manipulation of the Fourier Components of Speckle Fringe Patterns as Part of an Interferometric Analysis ProcessJournal of Modern Optics, 1989
- Smoothing of speckle and moire fringes by computer processingOptics and Lasers in Engineering, 1982
- Techniques For Speckle Noise RemovalOptical Engineering, 1981
- ELECTRONIC SPECKLE PATTERN INTERFEROMETRY1978
- Properties of speckle integrated with a finite aperture and logarithmically transformedJournal of the Optical Society of America, 1976
- Statistical properties of laser speckle patterns1975