Prototype Extraction and Adaptive OCR
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Learning Pseudo Bayes Discriminant Method Based on Difference Distribution of Feature Vectors
DAS '02 Proceedings of the 5th International Workshop on Document Analysis Systems V
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A Bayesian method of isolating character bitmaps from paragraph-length samples of heavily degraded text images is demonstrated. The method requires a transcript of the text, but it is sufficiently robust to tolerate errors in transcripts obtained from multifont commercial OCR software. The resulting prototypes (labeled character images) are used to recognize additional text in the same document.