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相关论文: A survey of modern optical character recognition t…

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We demonstrate that state-of-the-art optical character recognition (OCR) based on deep learning is vulnerable to adversarial images. Minor modifications to images of printed text, which do not change the meaning of the text to a human…

机器学习 · 计算机科学 2018-02-16 Congzheng Song , Vitaly Shmatikov

Optical Character Recognition (OCR) is one of the important fields in image processing and pattern recognition domain. Handwritten character recognition has always been a challenging task. Only a little work can be traced towards the…

计算机视觉与模式识别 · 计算机科学 2013-01-03 H. R. Mamatha , S. Karthik , Murthy K. Srikanta

Large Multimodal Models (LMMs) have recently shown strong performance on Optical Character Recognition (OCR) tasks, demonstrating their promising capability in document literacy. However, their effectiveness in real-world applications…

In this paper, we propose a data augmentation framework for Optical Character Recognition (OCR). The proposed framework is able to synthesize new viewing angles and illumination scenarios, effectively enriching any available OCR dataset.…

计算机视觉与模式识别 · 计算机科学 2022-09-30 Andreas Spruck , Maximiliane Hawesch , Anatol Maier , Christian Riess , Jürgen Seiler , André Kaup

Precise homography estimation between multiple images is a pre-requisite for many computer vision applications. One application that is particularly relevant in today's digital era is the alignment of scanned or camera-captured document…

计算机视觉与模式识别 · 计算机科学 2019-11-15 Kushagra Mahajan , Monika Sharma , Lovekesh Vig

The success rates of Optical Character Recognition (OCR) systems for printed Malayalam documents is quite impressive with the state of the art accuracy levels in the range of 85-95% for various. However for real applications, further…

计算与语言 · 计算机科学 2012-05-09 Sajilal Divakaran

Recognition of ancient Tamil characters has always been a challenge for epigraphers. This is primarily because the language has evolved over the several centuries and the character set over this time has both expanded and diversified. This…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Lalitha Giridhar , Aishwarya Dharani and , Velmathi Guruviah

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…

Recognizing text from natural images is a hot research topic in computer vision due to its various applications. Despite the enduring research of several decades on optical character recognition (OCR), recognizing texts from natural images…

计算机视觉与模式识别 · 计算机科学 2018-03-23 Zhanzhan Cheng , Yangliu Xu , Fan Bai , Yi Niu , Shiliang Pu , Shuigeng Zhou

Optical Character Recognition deals in recognition and classification of characters from an image. For the recognition to be accurate, certain topological and geometrical properties are calculated, based on which a character is classified…

计算机视觉与模式识别 · 计算机科学 2012-11-20 Vivek Shrivastava , Navdeep Sharma

Academic documents are packed with texts, equations, tables, and figures, requiring comprehensive understanding for accurate Optical Character Recognition (OCR). While end-to-end OCR methods offer improved accuracy over layout-based…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Yu Sun , Dongzhan Zhou , Chen Lin , Conghui He , Wanli Ouyang , Han-Sen Zhong

Emerging artificial intelligence applications across the domains of computer vision, natural language processing, graph processing, and sequence prediction increasingly rely on deep neural networks (DNNs). These DNNs require significant…

硬件体系结构 · 计算机科学 2024-08-01 Sudeep Pasricha

Segmentation of a text-document into lines, words and characters, which is considered to be the crucial pre-processing stage in Optical Character Recognition (OCR) is traditionally carried out on uncompressed documents, although most of the…

计算机视觉与模式识别 · 计算机科学 2014-04-01 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

Recent progress in deep learning has led to the development of Optical Character Recognition (OCR) systems which perform remarkably well. Most research has been around recurrent networks as well as complex gated layers which make the…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Kartik Chaudhary , Raghav Bali

In this paper we evaluate Optical Character Recognition (OCR) of 19th century Fraktur scripts without book-specific training using mixed models, i.e. models trained to recognize a variety of fonts and typesets from previously unseen…

计算机视觉与模式识别 · 计算机科学 2018-10-09 Christian Reul , Uwe Springmann , Christoph Wick , Frank Puppe

This paper surveys current technology and research in the area of digital color imaging. In order to establish the background and lay down terminology, fundamental concepts of color perception and measurement are first presented us-ing…

计算机视觉与模式识别 · 计算机科学 2015-06-25 Gaurav Sharma , H. Joel Trussell

Human eye can see and read what is written or displayed either in natural handwriting or in printed format. The same work in case the machine does is called handwriting recognition. Handwriting recognition can be broken down into two…

计算机视觉与模式识别 · 计算机科学 2013-04-02 K. C. Santosh , E. Iwata

Recognition of identity documents using mobile devices has become a topic of a wide range of computer vision research. The portfolio of methods and algorithms for solving such tasks as face detection, document detection and rectification,…

计算机视觉与模式识别 · 计算机科学 2020-02-12 Konstantin Bulatov , Daniil Matalov , Vladimir V. Arlazarov

Ancient scripts, e.g., Egyptian hieroglyphs, Oracle Bone Inscriptions, and Ancient Greek inscriptions, serve as vital carriers of human civilization, embedding invaluable historical and cultural information. Automating ancient script image…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Xiaolei Diao , Rite Bo , Yanling Xiao , Lida Shi , Zhihan Zhou , Hao Xu , Chuntao Li , Xiongfeng Tang , Massimo Poesio , Cédric M. John , Daqian Shi

Optical Coherence Tomography (OCT) is one of the most emerging imaging modalities that has been used widely in the field of biomedical imaging. From its emergence in 1990's, plenty of hardware and software improvements have been made. Its…

计算机视觉与模式识别 · 计算机科学 2014-11-18 Ahmadreza Baghaie , Roshan M. D'souza , Zeyun Yu