Handwritten Text Recognition: A Survey

• URL: http://arxiv.org/abs/2502.08417v1
• Date: Wed, 12 Feb 2025 13:59:37 GMT
• Title: Handwritten Text Recognition: A Survey
• Authors: Carlos Garrido-Munoz, Antonio Rios-Vila, Jorge Calvo-Zaragoza,
• Abstract summary: Handwritten Text Recognition (HTR) has become an essential field within pattern recognition and machine learning. The complexity of HTR lies in the high variability of handwriting, which makes it challenging to develop robust recognition systems. This survey examines the evolution of HTR models, tracing their progression from early-based approaches to modern state-of-the-art neural models.
• Score: 9.121437356699358
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• Abstract: Handwritten Text Recognition (HTR) has become an essential field within pattern recognition and machine learning, with applications spanning historical document preservation to modern data entry and accessibility solutions. The complexity of HTR lies in the high variability of handwriting, which makes it challenging to develop robust recognition systems. This survey examines the evolution of HTR models, tracing their progression from early heuristic-based approaches to contemporary state-of-the-art neural models, which leverage deep learning techniques. The scope of the field has also expanded, with models initially capable of recognizing only word-level content progressing to recent end-to-end document-level approaches. Our paper categorizes existing work into two primary levels of recognition: (1) \emph{up to line-level}, encompassing word and line recognition, and (2) \emph{beyond line-level}, addressing paragraph- and document-level challenges. We provide a unified framework that examines research methodologies, recent advances in benchmarking, key datasets in the field, and a discussion of the results reported in the literature. Finally, we identify pressing research challenges and outline promising future directions, aiming to equip researchers and practitioners with a roadmap for advancing the field.

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