0
Articles

Speckle noise reduction in TV holography fringes using wavelet thresholding

[+] Author Affiliations
Guillermo H. Kaufmann

Universidad Nacional de Rosario Instituto de Fisica Rosario (CONICET-UNR) Rosario 2000, Argentina

Facultad de Ciencias Exactas, Ingenieria y Agrimensura Departamento de Fisica Rosario 2000, Argentina

Gustavo E. Galizzi

Instituto de Fisica Rosario (CONICET-UNR), Rosario 2000, Argentina

Opt. Eng. 35(1), 9-14 (Jan 01, 1996). doi:10.1117/1.600874
History: Received Dec. 1, 1994; Received Jan. 22, 1995; Accepted Jan. 23, 1995
Text Size: A A A

Abstract

Recently, a novel wavelet method to reduce speckle noise in synthetic aperture radar images was presented. The method, based on the thresholding of the wavelet coefficients of the transformed image, is computationally efficient and maintains sharp image features. The application of a similar method is explored to reduce speckle noise in TV holography fringes, which is a very important problem in the quantitative analysis of transient phenomena. Several thresholding approaches are used to test the noise reduction algorithm on computer‐simulated fringes and results are assessed through the evaluation of two comparative parameters: the image fidelity and the speckle index. It is shown that the method achieves the highest speckle reduction when speckle grains have the same average size of the image pixels. © 1996 Society of Photo−Optical Instrumentation Engineers.


Citation

Guillermo H. Kaufmann and Gustavo E. Galizzi
"Speckle noise reduction in TV holography fringes using wavelet thresholding", Opt. Eng. 35(1), 9-14 (Jan 01, 1996). ; http://dx.doi.org/10.1117/1.600874


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Figures

Tables

References

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In