Image Processing Reference
In-Depth Information
this type of ultrasonic traces combination methods (using perpendicular NDE transducers)
from echoes coming from two ultrasonic imaging array apertures, where this particular
restriction (for only isolated reflectors) will be solved, by means of an improved procedure,
that includes an additional processing step involving additional echographic information
acquired not only from the emitting transducers.
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a) time domain method b) wavelet method, L =2 c) WVT method, L =2
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d) wavelet method, L =3 e) wavelet method, L =4 f) wavelet, L =4, scale in dB
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g) WVT method, L =3 h) WVT method, L =4 i) WVT, L =4, scale in dB
Fig. 8. Different 2D representations, after the combination of the traces shown in the figure 7;
different methods and L values were used.
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