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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

The analysis of historical documents is still a topical issue given the importance of information that can be extracted and also the importance given by the institutions to preserve their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

Document Reading Order Recovery is a fundamental task in document image understanding, playing a pivotal role in enhancing Retrieval-Augmented Generation (RAG) and serving as a critical preprocessing step for large language models (LLMs).…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Shuai Liu , Youmeng Li , Jizeng Wei

The accuracy of OCR is usually affected by the quality of the input document image and different kinds of marred document images hamper the OCR results. Among these scenarios, the low-resolution image is a common and challenging case. In…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Zhichao Fu , Yu Kong , Yingbin Zheng , Hao Ye , Wenxin Hu , Jing Yang , Liang He

Billions of public domain documents remain trapped in hard copy or lack an accurate digitization. Modern natural language processing methods cannot be used to index, retrieve, and summarize their texts; conduct computational textual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Tom Bryan , Jacob Carlson , Abhishek Arora , Melissa Dell

Text segmentation is an inherent part of an OCR system irrespective of the domain of application of it. The OCR system contains a segmentation module where the text lines, words and ultimately the characters must be segmented properly for…

Information Retrieval · Computer Science 2010-03-23 Satadal Saha , Subhadip Basu , Mita Nasipuri , Dipak Kr. Basu

Pool of knowledge available to the mankind depends on the source of learning resources, which can vary from ancient printed documents to present electronic material. The rapid conversion of material available in traditional libraries to…

Computer Vision and Pattern Recognition · Computer Science 2014-12-25 Akmal Jahan Mac , Roshan G Ragel

Document parsing is a core task in document intelligence, supporting applications such as information extraction, retrieval-augmented generation, and automated document analysis. However, real-world documents often feature complex layouts…

While analyzing scanned documents, handwritten text can overlap with printed text. This overlap causes difficulties during the optical character recognition (OCR) and digitization process of documents, and subsequently, hurts downstream NLP…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Sina Gholamian , Ali Vahdat

The digitisation of historical documents has provided historians with unprecedented research opportunities. Yet, the conventional approach to analysing historical documents involves converting them from images to text using OCR, a process…

Computation and Language · Computer Science 2023-11-07 Nadav Borenstein , Phillip Rust , Desmond Elliott , Isabelle Augenstein

Optical Character Recognition (OCR) technology is widely used to extract text from images of documents, facilitating efficient digitization and data retrieval. However, merely extracting text is insufficient when dealing with complex…

Scientific articles published prior to the "age of digitization" in the late 1990s contain figures which are "trapped" within their scanned pages. While progress to extract figures and their captions has been made, there is currently no…

Digital Libraries · Computer Science 2023-02-24 Jill P. Naiman , Peter K. G. Williams , Alyssa Goodman

When digitizing historical archives, it is necessary to search for the faces of celebrities and ordinary people, especially in newspapers, link them to the surrounding text, and make them searchable. Existing face detectors on datasets of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Marek Vaško , Adam Herout , Michal Hradiš

With the rapid development of the internet in the past decade, it has become increasingly important to extract valuable information from vast resources efficiently, which is crucial for establishing a comprehensive digital ecosystem,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Jinghong Li , Wen Gu , Koichi Ota , Shinobu Hasegawa

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

Reading order detection is the cornerstone to understanding visually-rich documents (e.g., receipts and forms). Unfortunately, no existing work took advantage of advanced deep learning models because it is too laborious to annotate a large…

Computation and Language · Computer Science 2021-08-30 Zilong Wang , Yiheng Xu , Lei Cui , Jingbo Shang , Furu Wei

Automatically recognizing the layout of handwritten documents is an important step towards useful extraction of information from those documents. The most common application is to feed downstream applications such as automatic text…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Lorenzo Quirós , Enrique Vidal

Document parsing has garnered widespread attention as vision-language models (VLMs) advance OCR capabilities. However, the field remains fragmented across dozens of specialized models with varying strengths, forcing users to navigate…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Hao Feng , Wei Shi , Ke Zhang , Xiang Fei , Lei Liao , Dingkang Yang , Yongkun Du , Xuecheng Wu , Jingqun Tang , Yang Liu , Hong Chen , Can Huang

In today's technological era, document images play an important and integral part in our day to day life, and specifically with the surge of Covid-19, digitally scanned documents have become key source of communication, thus avoiding any…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Dikshit Sharma , Mohammed Javed

We introduce the Brno Mobile OCR Dataset (B-MOD) for document Optical Character Recognition from low-quality images captured by handheld mobile devices. While OCR of high-quality scanned documents is a mature field where many commercial…

Computer Vision and Pattern Recognition · Computer Science 2019-07-03 Martin Kišš , Michal Hradiš , Oldřich Kodym