Wavelet filtering applied to time-average digital speckle pattern interferometry fringes

✍ Scribed by Rajesh Kumar; Shashi Kumar Singh; Chandra Shakher

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 447 KB
• Volume: 33
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/s0030-3992(01)00065-2

✦ Synopsis

In this paper we are presenting a ÿltering scheme using Symlet wavelet to remove the speckle noise from the time-averaged digital speckle pattern interferometry fringes. To demonstrate the potential of Symlet wavelet ÿltering, experiments are conducted to remove the speckle noise from the fringes recorded for the surface of computer hard disk. Experimental results demonstrate that this ÿltering removes the speckle noise to the large extent.