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At a time when the quantity of - more or less freely - available data is increasing significantly, thanks to digital corpora, editions or libraries, the development of data mining tools or deep learning methods allows researchers to build a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-29 Jean-Baptiste Camps , Gilles Guilhem Couffignal

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

Much of the existing linguistic data in many languages of the world is locked away in non-digitized books and documents. Optical character recognition (OCR) can be used to produce digitized text, and previous work has demonstrated the…

Computation and Language · Computer Science 2021-11-05 Shruti Rijhwani , Daisy Rosenblum , Antonios Anastasopoulos , Graham Neubig

Text recognition is a long-standing research problem for document digitalization. Existing approaches are usually built based on CNN for image understanding and RNN for char-level text generation. In addition, another language model is…

Computation and Language · Computer Science 2022-09-07 Minghao Li , Tengchao Lv , Jingye Chen , Lei Cui , Yijuan Lu , Dinei Florencio , Cha Zhang , Zhoujun Li , Furu Wei

Optical Character Recognition (OCR) of eighteenth-century printed texts remains challenging due to degraded print quality, archaic glyphs, and non-standardized orthography. Although transformer-based OCR systems and Vision-Language Models…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Ari Vesalainen , Eetu Mäkelä , Laura Ruotsalainen , Mikko Tolonen

Ancient Chinese character recognition is a core capability for cultural heritage digitization, yet real-world workflows are inherently non-stationary: newly excavated materials are continuously onboarded, bringing new classes in different…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yuchuan Wu , Yinglian Zhu , Haiyang Yu , Ke Niu , Bin Li , Xiangyang Xue

In the present work, we have used Tesseract 2.01 open source Optical Character Recognition (OCR) Engine under Apache License 2.0 for recognition of handwriting samples of lower case Roman script. Handwritten isolated and free-flow text…

Computer Vision and Pattern Recognition · Computer Science 2010-03-31 Sandip Rakshit , Subhadip Basu

With the growing adoption of Retrieval-Augmented Generation (RAG) in document processing, robust text recognition has become increasingly critical for knowledge extraction. While OCR (Optical Character Recognition) for English and other…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Ahmed Heakl , Abdullah Sohail , Mukul Ranjan , Rania Hossam , Ghazi Shazan Ahmad , Mohamed El-Geish , Omar Maher , Zhiqiang Shen , Fahad Khan , Salman Khan

Printed text recognition is an important problem for industrial OCR systems. Printed text is constructed in a standard procedural fashion in most settings. We develop a mathematical model for this process that can be applied to the backward…

Computer Vision and Pattern Recognition · Computer Science 2018-11-29 Wei Tang , John Corring , Ying Wu , Gang Hua

Despite significant advances in document understanding, determining the correct orientation of scanned or photographed documents remains a critical pre-processing step in the real world settings. Accurate rotation correction is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Suranjan Goswami , Abhinav Ravi , Raja Kolla , Ali Faraz , Shaharukh Khan , Akash , Chandra Khatri , Shubham Agarwal

Iterating with new and improved OCR solutions enforces decision making when it comes to targeting the right candidates for reprocessing. This especially applies when the underlying data collection is of considerable size and rather diverse…

Computation and Language · Computer Science 2023-06-22 Pit Schneider , Yves Maurer

Academic research tends to focus on new models for document understanding creating a wide gap in the literature between model definition and running models at production scale. To close that gap, we present a microservice architecture that…

Scientific articles published prior to the "age of digitization" (~1997) require Optical Character Recognition (OCR) to transform scanned documents into machine-readable text, a process that often produces errors. We develop a pipeline for…

Digital Libraries · Computer Science 2023-09-22 Jill P. Naiman , Morgan G. Cosillo , Peter K. G. Williams , Alyssa Goodman

Online Continual Learning (OCL) is a critical area in machine learning, focusing on enabling models to adapt to evolving data streams in real-time while addressing challenges such as catastrophic forgetting and the stability-plasticity…

Optical Character Recognition (OCR) is an established task with the objective of identifying the text present in an image. While many off-the-shelf OCR models exist, they are often trained for either scientific (e.g., formulae) or generic…

Computation and Language · Computer Science 2024-03-26 Nan Zhang , Connor Heaton , Sean Timothy Okonsky , Prasenjit Mitra , Hilal Ezgi Toraman

Current OCR systems are based on deep learning models trained on large amounts of data. Although they have shown some ability to generalize to unseen data, especially in detection tasks, they can struggle with recognizing low-quality data.…

This research paper presents a unique Bengali OCR system with some capabilities. The system excels in reconstructing document layouts while preserving structure, alignment, and images. It incorporates advanced image and signature detection…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 AKM Shahariar Azad Rabby , Hasmot Ali , Md. Majedul Islam , Sheikh Abujar , Fuad Rahman

Objective of the current work is to develop an Optical Character Recognition (OCR) engine for information Just In Time (iJIT) system that can be used for recognition of handwritten textual annotations of lower case Roman script. Tesseract…

Computer Vision and Pattern Recognition · Computer Science 2010-03-31 Sandip Rakshit , Subhadip Basu , Hisashi Ikeda

Over the past few decades, large archives of paper-based documents such as books and newspapers have been digitized using Optical Character Recognition. This technology is error-prone, especially for historical documents. To correct OCR…

Computation and Language · Computer Science 2023-08-01 Omri Suissa , Avshalom Elmalech , Maayan Zhitomirsky-Geffet

The inherent complexities of Arabic script; its cursive nature, diacritical marks (tashkeel), and varied typography, pose persistent challenges for Optical Character Recognition (OCR). We present Qari-OCR, a series of vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Ahmed Wasfy , Omer Nacar , Abdelakreem Elkhateb , Mahmoud Reda , Omar Elshehy , Adel Ammar , Wadii Boulila
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