Image analysis – Learning systems – Trainable classifiers or pattern recognizers
Patent
1995-06-22
1998-05-19
Couso, Yon
Image analysis
Learning systems
Trainable classifiers or pattern recognizers
382190, 382224, 395 24, 395 24, G06K 962
Patent
active
057546819
ABSTRACT:
In a signal pattern recognition apparatus, a plurality of feature transformation sections respectively transform an inputted signal pattern into vectors in a plurality of feature spaces corresponding respectively to predetermined classes using a predetermined transformation parameter corresponding to each of the classes so as to emphasize a feature of each of the classes, and a plurality of discriminant function sections respectively calculates a value of a discriminant function using a predetermined discriminant function representing a similarity measure of each of the classes for the transformed vectors in the plurality of feature spaces. Then, a selection section executes a signal pattern recognition process by selecting a class to which the inputted signal pattern belongs based on the calculated values of a plurality of discriminant functions corresponding respectively to the classes, and a training control section trains and sets a plurality of transformation parameters of the feature transformation process and a plurality of discriminant functions so that an error probability of the signal pattern recognition is minimized based on a predetermined training signal pattern.
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Katagiri Shigeru
Watanabe Hideyuki
Yamaguchi Tsuyoshi
ATR Interpreting Telecommunications Research Laboratories
Couso Yon
Nguyen Ha Tran
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