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The automatic recognition of tabular data in document images presents a significant challenge due to the diverse range of table styles and complex structures. Tables offer valuable content representation, enhancing the predictive…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Avinash Anand , Raj Jaiswal , Pijush Bhuyan , Mohit Gupta , Siddhesh Bangar , Md. Modassir Imam , Rajiv Ratn Shah , Shin'ichi Satoh

Multimodal Large Language Models (MLLMs) enhance the potential of natural language processing. However, their actual impact on document information extraction remains unclear. In particular, it is unclear whether an MLLM-only…

计算与语言 · 计算机科学 2026-03-04 Jiyuan Shen , Peiyue Yuan , Atin Ghosh , Yifan Mai , Daniel Dahlmeier

Optical character recognition (OCR) and document understanding systems increasingly rely on large vision and vision-language models, yet evaluation remains centered on modern, Western, and institutional documents. This emphasis masks system…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Fitsum Sileshi Beyene , Christopher L. Dancy

Optical Character Recognition (OCR) on historical printings is a challenging task mainly due to the complexity of the layout and the highly variant typography. Nevertheless, in the last few years great progress has been made in the area of…

In this paper, we investigate the usage of fine-grained font recognition on OCR for books printed from the 15th to the 18th century. We used a newly created dataset for OCR of early printed books for which fonts are labeled with bounding…

The Bavarian Academy of Sciences and Humanities aims to digitize its Medieval Latin Dictionary. This dictionary entails record cards referring to lemmas in medieval Latin, a low-resource language. A crucial step of the digitization process…

This paper deals with the task of practical and open source Handwritten Text Recognition (HTR) on German medieval manuscripts. We report on our efforts to construct mixed recognition models which can be applied out-of-the-box without any…

计算机视觉与模式识别 · 计算机科学 2022-01-20 Christian Reul , Stefan Tomasek , Florian Langhanki , Uwe Springmann

In this paper, we explore the intersection of technology and cultural preservation by developing a self-supervised learning framework for the classification of musical symbols in historical manuscripts. Optical Music Recognition (OMR) plays…

信息检索 · 计算机科学 2024-11-26 Elona Shatri , Daniel Raymond , George Fazekas

Thousands of users consult digital archives daily, but the information they can access is unrepresentative of the diversity of documentary history. The sequence-to-sequence architecture typically used for optical character recognition (OCR)…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Jacob Carlson , Tom Bryan , Melissa Dell

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…

计算机视觉与模式识别 · 计算机科学 2023-09-21 Sergio Correia , Stephan Luck

Optical Character Recognition (OCR) for data extraction from documents is essential to intelligent informatics, such as digitizing medical records and recognizing road signs. Multi-modal Large Language Models (LLMs) can solve this task and…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Hyakka Nakada , Yoshiyasu Tanaka

Over the past few decades, large archives of paper-based historical documents, such as books and newspapers, have been digitized using the Optical Character Recognition (OCR) technology. Unfortunately, this broadly used technology is…

计算与语言 · 计算机科学 2023-08-01 Omri Suissa , Maayan Zhitomirsky-Geffet , Avshalom Elmalech

Manchu, a critically endangered language essential for understanding early modern Eastern Eurasian history, lacks effective OCR systems that can handle real-world historical documents. This study develops high-performing OCR systems by…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Yan Hon Michael Chung , Donghyeok Choi

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…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Ari Vesalainen , Eetu Mäkelä , Laura Ruotsalainen , Mikko Tolonen

Information extraction from copy-heavy documents, characterized by massive volumes of structurally similar content, represents a critical yet understudied challenge in enterprise document processing. We present a systematic framework that…

计算与语言 · 计算机科学 2025-10-14 Zilong Wang , Xiaoyu Shen

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…

计算机视觉与模式识别 · 计算机科学 2019-05-29 Deepayan Das , Jerin Philip , Minesh Mathew , C. V. Jawahar

This article describes the results of a case study that applies Neural Network-based Optical Character Recognition (OCR) to scanned images of books printed between 1487 and 1870 by training the OCR engine OCRopus [@breuel2013high] on the…

计算与语言 · 计算机科学 2017-04-11 U. Springmann , A. Lüdeling

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…

计算与语言 · 计算机科学 2024-09-04 Angel Beshirov , Milena Dobreva , Dimitar Dimitrov , Momchil Hardalov , Ivan Koychev , Preslav Nakov

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…

计算与语言 · 计算机科学 2023-11-07 Nadav Borenstein , Phillip Rust , Desmond Elliott , Isabelle Augenstein

The objective of the paper is to recognize handwritten samples of lower case Roman script using Tesseract open source Optical Character Recognition (OCR) engine under Apache License 2.0. Handwritten data samples containing isolated and…

计算机视觉与模式识别 · 计算机科学 2010-03-31 Sandip Rakshit , Subhadip Basu