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

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Author: Rajesh Kumar; Singh, Shashi Kumar; Shakher, Chandra

Advisor: Advisor

Date: 2001

Publisher:
Citation: Optics & L

Series/Report no.:
Item Type: Article

Keywords: Digital speckle pattern interferometry; Vibration; Contrast; Histogram equalization; Histogram equalization

Abstract: In this paper we are presenting a filtering 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 filtering, experiments are conducted to remove the speckle noise from the fringes recorded for the surface of computer hard disk. Experimental results demonstrate that this filtering removes the speckle noise to the large extent.
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Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
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Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
NDLTD
Shodhganga
NDL
ePrints@IISc
etd@IISc
IR@IIT Bombay
NewsClips @IITD
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