A Document Analysis System Based on Text Line Matching of Multiple OCR Outputs
It is well known that integration of multiple OCR outputs can give higher performance than a single OCR. This idea was applied to the printed Japanese recognition and better performance was obtained. In the conventional experiments, however, the zoning, i.e. the extraction of the text region, was done manually and this has been a serious problem from the practical point of view. To solve the problem, an approach to match automatically the classified regions outputted by multiple OCRs was proposed. By the proposed method, a high recognition rate of 98.8% was obtained from OCR systems whose performance is no better than 97.6%.
KeywordsRecognition Rate Document Image Text Region High Recognition Rate Japanese Document