Signaling segment

For a selected Ascan signal of the observed Bscan image, the vector x may be determined from the segmented Bscan image and the vector of complex scaling parameters a (x) is then... 

J. MOYSAN AL, Matrice de co-occurrence optimale pour la segmentation automatique d image ultrasonores, Traitement du signal, 1992, volume 9, N 4... 

F.Y. BRIAND al. Segmentation de defauts dans des images de radiographies industrielles, 1988, Revue du Traitement du signal. Vol5 N°4.. 

Upon considering the observation that even with 4 segments a detectable diffracted signal was observed, most popularly employed 4 segment EMATs, with unequal spacing and 780 kHz were tried for TOFD measurements and found to be very promising. 

Wall M R and Neuhauser D 1995 Extraction, through filter-diagonalization, of general quantum eigenvalues or classical normal mode frequencies from a small number of residues or a short-time segment of a signal. 

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