Labelling OCR Ground Truth for Usage in Repositories

Labelling OCR Ground Truth for Usage in Repositories
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标记 OCR Ground Truth 以供在存储库中使用

DOI:
10.1145/3322905.3322916
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发表时间:
2019
期刊:
Proceedings of the 3rd International Conference on Digital Access to Textual Cultural Heritage
影响因子:
--
通讯作者:
Clemens
Clemens
中科院分区:
--
文献类型:
--
作者:
Boenig;Matthias;Baierer;Konstantin;Hartmann;Volker;Federbusch;Neudecker;Clemens

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The rapid developments in deep/machine learning algorithms have over the last decade largely replaced traditional pattern/language-based approaches to OCR. Training these new tools requires scanned images alongside their transcriptions (Ground Truth, GT). To OCR historical documents with high accuracy, a wide variety and variability of GT is required to create highly specific models for specific document corpora.In this paper we present an XML-based format to exhaustively describe the features of GT for OCR relevant to training, storage and retrieval (GT metadata, GTM), as well as the tools for creating GT. We discuss the OCRD-ZIP format for bundling digitized books, including METS, images, transcription, GT metadata and more. We'll show how these data formats are used in different repository solutions within the OCR-D framework.
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