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India's linguistic landscape is one of the most diverse in the world, comprising over 120 major languages and approximately 1,600 additional languages, with 22 officially recognized as scheduled languages in the Indian Constitution. Despite…

The biggest challenge in the field of image processing is to recognize documents both in printed and handwritten format. Optical Character Recognition OCR is a type of document image analysis where scanned digital image that contains either…

计算机视觉与模式识别 · 计算机科学 2016-12-05 Singh Vijendra , Nisha Vasudeva , Hem Jyotsana Parashar

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

This paper presents DavarOCR, an open-source toolbox for OCR and document understanding tasks. DavarOCR currently implements 19 advanced algorithms, covering 9 different task forms. DavarOCR provides detailed usage instructions and the…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Liang Qiao , Hui Jiang , Ying Chen , Can Li , Pengfei Li , Zaisheng Li , Baorui Zou , Dashan Guo , Yingda Xu , Yunlu Xu , Zhanzhan Cheng , Yi Niu

The problem of converting images of text into plain text is a widely researched topic in both academia and industry. Arabic handwritten Text Recognation (AHTR) poses additional challenges due to diverse handwriting styles and limited…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Alhossien Waly , Bassant Tarek , Ali Feteha , Rewan Yehia , Gasser Amr , Ahmed Fares

The development of Urdu scene text detection, recognition, and Visual Question Answering (VQA) technologies is crucial for advancing accessibility, information retrieval, and linguistic diversity in digital content, facilitating better…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Hiba Maryam , Ling Fu , Jiajun Song , Tajrian ABM Shafayet , Qidi Luo , Xiang Bai , Yuliang Liu

Substantial amounts of work are required to clean large collections of digitized books for NLP analysis, both because of the presence of errors in the scanned text and the presence of duplicate volumes in the corpora. In this paper, we…

计算与语言 · 计算机科学 2021-10-25 Allen Kim , Charuta Pethe , Naoya Inoue , Steve Skiena

Kuzushiji, a pre-modern Japanese cursive script, can currently be read and understood by only a few thousand trained experts in Japan. With the rapid development of deep learning, researchers have begun applying Optical Character…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Rui-Yang Ju , Kohei Yamashita , Hirotaka Kameko , Shinsuke Mori

Foundational to the Chinese language and culture, Chinese characters encompass extraordinarily extensive and ever-expanding categories, with the latest Chinese GB18030-2022 standard containing 87,887 categories. The accurate recognition of…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Yuyi Zhang , Yongxin Shi , Peirong Zhang , Yixin Zhao , Zhenhua Yang , Lianwen Jin

This paper introduces a novel approach to post-Optical Character Recognition Correction (POC) for handwritten Cyrillic text, addressing a significant gap in current research methodologies. This gap is due to the lack of large text corporas…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Evgenii Davydkin , Aleksandr Markelov , Egor Iuldashev , Anton Dudkin , Ivan Krivorotov

Long-term OCR services aim to provide high-quality output to their users at competitive costs. It is essential to upgrade the models because of the complex data loaded by the users. The service providers encourage the users who provide data…

计算机视觉与模式识别 · 计算机科学 2022-12-20 Ajoy Mondal , Rohit saluja , C. V. Jawahar

Oracle character recognition-an analysis of ancient Chinese inscriptions found on oracle bones-has become a pivotal field intersecting archaeology, paleography, and historical cultural studies. Traditional methods of oracle character…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Jing Li , Xueke Chi , Qiufeng Wang , Dahan Wang , Kaizhu Huang , Yongge Liu , Cheng-lin Liu

We present DeepSeek-OCR as an initial investigation into the feasibility of compressing long contexts via optical 2D mapping. DeepSeek-OCR consists of two components: DeepEncoder and DeepSeek3B-MoE-A570M as the decoder. Specifically,…

计算机视觉与模式识别 · 计算机科学 2025-10-22 Haoran Wei , Yaofeng Sun , Yukun Li

DeepSeek-OCR utilizes an optical 2D mapping approach to achieve high-ratio vision-text compression, claiming to decode text tokens exceeding ten times the input visual tokens. While this suggests a promising solution for the LLM…

计算与语言 · 计算机科学 2026-01-09 Yunhao Liang , Ruixuan Ying , Bo Li , Hong Li , Kai Yan , Qingwen Li , Min Yang , Okamoto Satoshi , Zhe Cui , Shiwen Ni

No standardized benchmark exists for evaluating OCR on food packaging, despite its critical role in automated halal food verification. Existing benchmarks target documents or scene text, missing the unique challenges of ingredient labels:…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Hasan Arief

Recognition of document images have important applications in restoring old and classical texts. The problem involves quality improvement before passing it to a properly trained OCR to get accurate recognition of the text. The image…

计算机视觉与模式识别 · 计算机科学 2017-02-01 Ram Krishna Pandey , A G Ramakrishnan

The Tajik language, written in Cyrillic script, remains severely under-resourced in terms of publicly available natural language processing (NLP) toolkits, hindering both linguistic research and applied development. This paper introduces…

计算与语言 · 计算机科学 2026-05-29 Mullosharaf K. Arabov

With the rapid increase of transnational communication and cooperation, people frequently encounter multilingual scenarios in various situations. In this paper, we are concerned with a relatively new problem: script identification at word…

计算机视觉与模式识别 · 计算机科学 2015-05-13 Baoguang Shi , Cong Yao , Chengquan Zhang , Xiaowei Guo , Feiyue Huang , Xiang Bai

Lipreading has emerged as an increasingly important research area for developing robust speech recognition systems and assistive technologies for the hearing-impaired. However, non-English resources for visual speech recognition remain…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Zahra Taghizadeh , Mohammad Shahverdikondori , Arian Noori , Alireza Dadgarnia

We aim to investigate the performance of current OCR systems on low resource languages and low resource scripts. We introduce and make publicly available a novel benchmark, OCR4MT, consisting of real and synthetic data, enriched with noise,…

计算与语言 · 计算机科学 2022-03-15 Oana Ignat , Jean Maillard , Vishrav Chaudhary , Francisco Guzmán
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