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Hybrid OCR Combination for Ancient Documents

Identifieur interne : 001294 ( Main/Curation ); précédent : 001293; suivant : 001295

Hybrid OCR Combination for Ancient Documents

Auteurs : Hubert Cecotti [France] ; Abdel Belaïd [France]

Source :

RBID : ISTEX:FFEAD1F3CDBEF35E2AC2B68BB2C35789522DCB30

Descripteurs français

English descriptors

Abstract

Abstract: Commercial Optical Character Recognition (OCR) have at lot improved in the last few years. Their outstanding ability to process different kinds of documents is their main quality. However, their generality can also be an issue, as they cannot recognize perfectly documents far from the average present-day documents. We propose in this paper a system combining several OCRs and a specialized ICR (Intelligent Character Recognition) based on a convolutional neural network to complement them. Instead of just performing several OCRs in parallel and applying a fusing rule on the results, a specialized neural network with an adaptive topology is added to complement the OCRs, in function of the OCRs errors. This system has been tested on ancient documents containing old characters and old fonts not used in contemporary documents. The OCRs combination increases the recognition of about 3% whereas the ICR improves the recognition of rejected characters of more than 5%.

Url:
DOI: 10.1007/11551188_71

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Links to Exploration step

ISTEX:FFEAD1F3CDBEF35E2AC2B68BB2C35789522DCB30

Le document en format XML

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