Uncovering the Handwritten Text in the Margins: End-to-end Handwritten Text Detection and Recognition

Fuente: arXiv
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Autores principales: Cheng, Liang, Frankemölle, Jonas, Axelsson, Adam, Vats, Ekta
Formato: Preprint
Publicado: 2023
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author Cheng, Liang
Frankemölle, Jonas
Axelsson, Adam
Vats, Ekta
author_facet Cheng, Liang
Frankemölle, Jonas
Axelsson, Adam
Vats, Ekta
contents The pressing need for digitization of historical documents has led to a strong interest in designing computerised image processing methods for automatic handwritten text recognition. However, not much attention has been paid on studying the handwritten text written in the margins, i.e. marginalia, that also forms an important source of information. Nevertheless, training an accurate and robust recognition system for marginalia calls for data-efficient approaches due to the unavailability of sufficient amounts of annotated multi-writer texts. Therefore, this work presents an end-to-end framework for automatic detection and recognition of handwritten marginalia, and leverages data augmentation and transfer learning to overcome training data scarcity. The detection phase involves investigation of R-CNN and Faster R-CNN networks. The recognition phase includes an attention-based sequence-to-sequence model, with ResNet feature extraction, bidirectional LSTM-based sequence modeling, and attention-based prediction of marginalia. The effectiveness of the proposed framework has been empirically evaluated on the data from early book collections found in the Uppsala University Library in Sweden. Source code and pre-trained models are available at Github.
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id arxiv_https___arxiv_org_abs_2303_05929
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Uncovering the Handwritten Text in the Margins: End-to-end Handwritten Text Detection and Recognition
Cheng, Liang
Frankemölle, Jonas
Axelsson, Adam
Vats, Ekta
Computer Vision and Pattern Recognition
The pressing need for digitization of historical documents has led to a strong interest in designing computerised image processing methods for automatic handwritten text recognition. However, not much attention has been paid on studying the handwritten text written in the margins, i.e. marginalia, that also forms an important source of information. Nevertheless, training an accurate and robust recognition system for marginalia calls for data-efficient approaches due to the unavailability of sufficient amounts of annotated multi-writer texts. Therefore, this work presents an end-to-end framework for automatic detection and recognition of handwritten marginalia, and leverages data augmentation and transfer learning to overcome training data scarcity. The detection phase involves investigation of R-CNN and Faster R-CNN networks. The recognition phase includes an attention-based sequence-to-sequence model, with ResNet feature extraction, bidirectional LSTM-based sequence modeling, and attention-based prediction of marginalia. The effectiveness of the proposed framework has been empirically evaluated on the data from early book collections found in the Uppsala University Library in Sweden. Source code and pre-trained models are available at Github.
title Uncovering the Handwritten Text in the Margins: End-to-end Handwritten Text Detection and Recognition
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2303.05929