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The analysis of historical documents is still a topical issue given the importance of information that can be extracted and also the importance given by the institutions to preserve their heritage. The main idea in order to characterize the…

Computer Vision and Pattern Recognition · Computer Science 2013-08-30 Nizar Zaghden , Remy Mullot , Mohamed Adel Alimi

Large-scale digitization initiatives have unlocked massive collections of historical newspapers, yet effective computational access remains hindered by OCR corruption, multilingual orthographic variation, and temporal language drift. We…

Digital Libraries · Computer Science 2025-12-16 Anthony Mudet , Souhail Bakkali

In this paper, we propose an end-to-end trainable framework for restoring historical documents content that follows the correct reading order. In this framework, two branches named character branch and layout branch are added behind the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Weihong Ma , Hesuo Zhang , Lianwen Jin , Sihang Wu , Jiapeng Wang , Yongpan Wang

This paper presents a systematic literature review of image datasets for document image analysis, focusing on historical documents, such as handwritten manuscripts and early prints. Finding appropriate datasets for historical document…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Konstantina Nikolaidou , Mathias Seuret , Hamam Mokayed , Marcus Liwicki

There is a huge amount of historical documents in libraries and in various National Archives that have not been exploited electronically. Although automatic reading of complete pages remains, in most cases, a long-term objective, tasks such…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Laurence Likforman-Sulem , Abderrazak Zahour , Bruno Taconet

Text line segmentation is one of the pre-stages of modern optical character recognition systems. The algorithmic approach proposed by this paper has been designed for this exact purpose. Its main characteristic is the combination of two…

Computer Vision and Pattern Recognition · Computer Science 2023-06-22 Pit Schneider

Automatic analysis of scanned historical documents comprises a wide range of image analysis tasks, which are often challenging for machine learning due to a lack of human-annotated learning samples. With the advent of deep neural networks,…

Computer Vision and Pattern Recognition · Computer Science 2019-05-23 Linda Studer , Michele Alberti , Vinaychandran Pondenkandath , Pinar Goktepe , Thomas Kolonko , Andreas Fischer , Marcus Liwicki , Rolf Ingold

Document image binarization is the initial step and a crucial in many document analysis and recognition scheme. In fact, it is still a relevant research subject and a fundamental challenge due to its importance and influence. This paper…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Omar Boudraa , Walid Khaled Hidouci , Dominique Michelucci

This paper introduces a new way for text-line extraction by integrating deep-learning based pre-classification and state-of-the-art segmentation methods. Text-line extraction in complex handwritten documents poses a significant challenge,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Michele Alberti , Lars Vögtlin , Vinaychandran Pondenkandath , Mathias Seuret , Rolf Ingold , Marcus Liwicki

One of the most pressing problems in the automated analysis of historical documents is the availability of annotated training data. The problem is that labeling samples is a time-consuming task because it requires human expertise and thus,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Christian Bartz , Hendrik Raetz , Jona Otholt , Christoph Meinel , Haojin Yang

Existing full text datasets of U.S. public domain newspapers do not recognize the often complex layouts of newspaper scans, and as a result the digitized content scrambles texts from articles, headlines, captions, advertisements, and other…

Computation and Language · Computer Science 2023-08-25 Melissa Dell , Jacob Carlson , Tom Bryan , Emily Silcock , Abhishek Arora , Zejiang Shen , Luca D'Amico-Wong , Quan Le , Pablo Querubin , Leander Heldring

Optical Character Recognition (OCR), the task of extracting textual information from scanned documents is a vital and broadly used technology for digitizing and indexing physical documents. Existing technologies perform well for clean…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Daniel Rotman , Ophir Azulai , Inbar Shapira , Yevgeny Burshtein , Udi Barzelay

Camera-captured document images often suffer from geometric distortions caused by paper deformation, perspective distortion, and lens aberrations, significantly reducing OCR accuracy. This study develops an efficient automated method for…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Valery Istomin , Oleg Pereziabov , Ilya Afanasyev

Linked Data is used in various fields as a new way of structuring and connecting data. Cultural heritage institutions have been using linked data to improve archival descriptions and facilitate the discovery of information. Most archival…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Mariana Dias , Carla Teixeira Lopes

This paper discusses how to successfully digitize large-scale historical micro-data by augmenting optical character recognition (OCR) engines with pre- and post-processing methods. Although OCR software has improved dramatically in recent…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Sergio Correia , Stephan Luck

High-resolution imaging has delivered new prospects for detecting the material composition and structure of cultural treasures. Despite the various techniques for analysis, a significant diagnostic gap remained in the range of available…

Computer Vision and Pattern Recognition · Computer Science 2017-12-12 AmirAbbas Davari , Armin Häberle , Vincent Christlein , Andreas Maier , Christian Riess

Historical Document Image Binarization is a well-known segmentation problem in image processing. Despite ubiquity, traditional thresholding algorithms achieved limited success on severely degraded document images. With the advent of deep…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Avirup Dey , Nibaran Das , Mita Nasipuri

In recent years, (retro-)digitizing paper-based files became a major undertaking for private and public archives as well as an important task in electronic mailroom applications. As a first step, the workflow involves scanning and Optical…

Computation and Language · Computer Science 2019-03-26 Gregor Wiedemann , Gerhard Heyer

We explore the potential of pixel-based models for transfer learning from standard languages to dialects. These models convert text into images that are divided into patches, enabling a continuous vocabulary representation that proves…

Computation and Language · Computer Science 2024-12-13 Alberto Muñoz-Ortiz , Verena Blaschke , Barbara Plank

Digital versions of real-world text documents often suffer from issues like environmental corrosion of the original document, low-quality scanning, or human interference. Existing document restoration and inpainting methods typically…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Wanglong Lu , Lingming Su , Jingjing Zheng , Vinícius Veloso de Melo , Farzaneh Shoeleh , John Hawkin , Terrence Tricco , Hanli Zhao , Xianta Jiang