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Ultrasonic Image Restoration by Pseudo Three-Dimensional Power Spectrum Equalization

  • Prasanna Karpur
  • Brian G. Frock
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

Ultrasonic signal analysis and image processing play important roles in the field of NDE. Many methods of ultrasonic imaging such as A-scan, B-scan and C-scan are available. Using such images, NDE tests and analysis can be performed. However, the images are limited by the resolution limits of the imaging system which are established by many factors such as the bandwidth of the transducer, frequency of interrogation, diffraction effects, etc. One of the results of such resolution limits is the blurring of the images.

Keywords

Point Spread Function Image Restoration Impact Damage Ultrasonic Image Spectral Distortion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Burgoyne B., Pavkovich J. and Kino G.S., “Digital Filtering of Acoustical images”, Vol.11, Plenum Press, New York,pp: 131–166, 1981.Google Scholar
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    Frock B.G., Martin R.W., Moran T.J. and Shimmin K.D., “Imaging of Impact Damage in Composite Materials”, Review of Progress in Quantitative Nondestructive Evaluation, Vol. 7,pp: 1093 - , 1987Google Scholar
  3. 3.
    Karpur P. and Frock B.G., “Two Dimensional Pseudo-Wiener Filtering in Ultrasonic Imaging for Nondestructive Evaluation Applications”, Review of Progress in Quantitative Nondestructive Evaluation, Vol. 8,pp: 743–750, 1988.Google Scholar
  4. 4.
    Iraca D., Landini L. and Verrazzani L., “Power Spectrum Equalization for Ultrasonic Image Restoration”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol.36, No. 2,pp: 216–222, March 1989.Google Scholar
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    Andrews H.C. and Hunt S.R., Digital Image Restoration, Prentice-Hall Inc., 1977.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Prasanna Karpur
    • 1
  • Brian G. Frock
    • 1
  1. 1.Research InstituteUniversity of DaytonDaytonUSA

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