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For digitizing or indexing physical documents, Optical Character Recognition (OCR), the process of extracting textual information from scanned documents, is a vital technology. When a document is visually damaged or contains non-textual…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Oshri Naparstek , Ophir Azulai , Daniel Rotman , Yevgeny Burshtein , Peter Staar , Udi Barzelay

This paper proposes LayoutLLM, a more flexible document analysis method for understanding imaged documents. Visually Rich Document Understanding tasks, such as document image classification and information extraction, have gained…

Computation and Language · Computer Science 2024-03-22 Masato Fujitake

Word error rate of an ocr is often higher than its character error rate. This is especially true when ocrs are designed by recognizing characters. High word accuracies are critical to tasks like the creation of content in digital libraries…

Computer Vision and Pattern Recognition · Computer Science 2019-05-29 Deepayan Das , Jerin Philip , Minesh Mathew , C. V. Jawahar

Digital libraries often face the challenge of processing a large volume of diverse document types. The manual collection and tagging of metadata can be a time-consuming and error-prone task. To address this, we aim to develop an automatic…

In a world of digitization, optical character recognition holds the automation to written history. Optical character recognition system basically converts printed images into editable texts for better storage and usability. To be completely…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Abu Saleh Md. Abir , Sanjana Rahman , Samia Ellin , Maisha Farzana , Md Hridoy Manik , Chowdhury Rafeed Rahman

Interacting with the legal system and the government requires the assembly and analysis of various pieces of information that can be spread across different (paper) documents, such as forms, certificates and contracts (e.g. leases). This…

Computation and Language · Computer Science 2024-12-23 Hannes Westermann , Jaromir Savelka

The vast majority of materials science knowledge exists in unstructured natural language, yet structured data is crucial for innovative and systematic materials design. Traditionally, the field has relied on manual curation and partial…

The font recognition and character extraction is of immense importance as these are many scenarios where data are in such a form, which cannot be processed like in image form or as a hard copy. So the procedure developed in this paper is…

Computer Vision and Pattern Recognition · Computer Science 2013-05-20 Syed Muhammad Arsalan Bashir

Optical Character Recognition (OCR) systems have been widely used in various of application scenarios. Designing an OCR system is still a challenging task. In previous work, we proposed a practical ultra lightweight OCR system (PP-OCR) to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Yuning Du , Chenxia Li , Ruoyu Guo , Cheng Cui , Weiwei Liu , Jun Zhou , Bin Lu , Yehua Yang , Qiwen Liu , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

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…

The development of large vision language models drives the demand for managing, and applying massive amounts of multimodal data, making OCR technology, which extracts information from visual images, increasingly popular. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yufeng Zhong , Lei Chen , Xuanle Zhao , Wenkang Han , Liming Zheng , Jing Huang , Deyang Jiang , Yilin Cao , Lin Ma , Zhixiong Zeng

Vision-Language (VL) models have garnered considerable research interest; however, they still face challenges in effectively handling text within images. To address this limitation, researchers have developed two approaches. The first…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Jonathan Fhima , Elad Ben Avraham , Oren Nuriel , Yair Kittenplon , Roy Ganz , Aviad Aberdam , Ron Litman

Large language models (LLMs) are increasingly used to extract clinical data from electronic health records (EHRs), offering significant improvements in scalability and efficiency for real-world data (RWD) curation in oncology. However, the…

Information extraction (IE) from documents is an intensive area of research with a large set of industrial applications. Current state-of-the-art methods focus on scanned documents with approaches combining computer vision, natural language…

Computation and Language · Computer Science 2022-08-16 Ismail Oussaid , William Vanhuffel , Pirashanth Ratnamogan , Mhamed Hajaiej , Alexis Mathey , Thomas Gilles

The digitization of historical documents is crucial for preserving the cultural heritage of the society. An important step in this process is converting scanned images to text using Optical Character Recognition (OCR), which can enable…

Computation and Language · Computer Science 2024-09-04 Angel Beshirov , Milena Dobreva , Dimitar Dimitrov , Momchil Hardalov , Ivan Koychev , Preslav Nakov

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…

Instrumentation and Methods for Astrophysics · Physics 2022-09-13 J. P. Naiman , Peter K. G. Williams , Alyssa Goodman

The production of digital documents has been growing rapidly in academic, business, and health environments, presenting new challenges in the efficient extraction and analysis of unstructured information. This work investigates the use of…

Information Retrieval · Computer Science 2025-07-30 Daniel Meireles do Rego

The growing demand for effective tools to parse PDF-formatted texts, particularly structured documents such as textbooks, reveals the limitations of current methods developed mainly for research paper segmentation. This work addresses the…

Information Retrieval · Computer Science 2025-09-03 Sabine Wehnert , Harikrishnan Changaramkulath , Ernesto William De Luca

Automating high-volume unstructured data processing is essential for operational efficiency. Optical Character Recognition (OCR) is critical but often struggles with accuracy and efficiency in complex layouts and ambiguous text. These…

Robotics · Computer Science 2025-04-29 Osama Abdellatif , Ahmed Ayman , Ali Hamdi

Document content analysis has been a crucial research area in computer vision. Despite significant advancements in methods such as OCR, layout detection, and formula recognition, existing open-source solutions struggle to consistently…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Bin Wang , Chao Xu , Xiaomeng Zhao , Linke Ouyang , Fan Wu , Zhiyuan Zhao , Rui Xu , Kaiwen Liu , Yuan Qu , Fukai Shang , Bo Zhang , Liqun Wei , Zhihao Sui , Wei Li , Botian Shi , Yu Qiao , Dahua Lin , Conghui He