Two-dimensional ultrasonic flaw detection based on the wavelet packet transform

@article{Robini1997TwodimensionalUF,
  title={Two-dimensional ultrasonic flaw detection based on the wavelet packet transform},
  author={M. C. Robini and I. Magnin and Hugues Benoit-Cattin and Atilla Baskurt},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
  year={1997},
  volume={44},
  pages={1382-1394}
}
An important issue in ultrasonic nondestructive evaluation is the detection of flaw echoes in the presence of coherent background noise associated with the microstructure of materials. Many signal processing techniques have proven to be useful for this purpose, but fully 2-D flaw detection techniques remain desirable. In this paper, we describe a novel automatic flaw detection method based on the wavelet packet transform, which is particularly well adapted to B-scan image analysis. After a… CONTINUE READING

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