Method for feature preprocessing for pattern matching

G - Physics – 06 – K

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G06K 9/62 (2006.01) G06K 9/52 (2006.01) G10L 15/02 (2006.01)

Patent

CA 2423304

A pattern matching preprocessing system which comprises: a) means for effecting a frequency domain transform on an input signal; b) means for producing a spectral plot from the output of a); c) means for effecting a spectral reconfiguration permutation and mapping (SRP & M) on the spectral plot as hereinbefore defined; d) means for effecting an inverse frequency domain transform on the output of c); and e) means for applying a Wave Shape Descriptor coding and classification to the output of d).

La présente invention concerne un système de prétraitement pour appariement de formes, qui comprend a) un système permettant d'effectuer une transformée dans le domaine fréquentiel sur un signal d'entrée ; b) un système permettant de produire un graphe spectral à partir de la sortie de a) ; c) un système permettant d'effectuer une permutation et une application de reconfiguration spectrale (SRP & M) sur le graphe spectral tel que précédemment défini ; d) un système permettant d'effectuer une transformée inverse dans le domaine fréquentiel sur la sortie de c) ; et e) un système permettant d'appliquer un codage et une classification de descripteurs de forme d'onde à la sortie de d).

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