On Thai character recognition

Presents a two-stage classification procedure for the recognition of Thai characters. Two classifiers are used to initially classify the characters into different groups and then to classify the characters within each group. Both a backpropagation multi-layered perceptron and a discriminant analysis technique, called penalised discriminant analysis, are used for classification. A comparative performance analysis of the two classifiers is given. To effectively decorrelate the feature vectors, a wavelet transform is also introduced during the preprocessing phase