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Related papers: A Survey on Optical Character Recognition System

200 papers

Conventional optical character recognition (OCR) techniques segmented each character and then recognized. This made them prone to error in character segmentation, and devoid of context to exploit language models. Advances in sequence to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-01 Shashank Vempati , Nishit Anand , Gaurav Talebailkar , Arpan Garai , Chetan Arora

Industrial Retrieval-Augmented Generation (RAG) systems depend on optical character recognition (OCR) to transform visual documents into text. Existing OCR benchmarks rely on character-level metrics, which inadequately measure downstream…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Lin Sun , Wang Dexian , Jingang Huang , Linglin Zhang , Change Jia , Zhengwei Cheng , Xiangzheng Zhang

Traditional OCR systems (OCR-1.0) are increasingly unable to meet people's usage due to the growing demand for intelligent processing of man-made optical characters. In this paper, we collectively refer to all artificial optical signals…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Haoran Wei , Chenglong Liu , Jinyue Chen , Jia Wang , Lingyu Kong , Yanming Xu , Zheng Ge , Liang Zhao , Jianjian Sun , Yuang Peng , Chunrui Han , Xiangyu Zhang

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…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Yu Sun , Dongzhan Zhou , Chen Lin , Conghui He , Wanli Ouyang , Han-Sen Zhong

Document digitization is essential for the digital transformation of our societies, yet a crucial step in the process, Optical Character Recognition (OCR), is still not perfect. Even commercial OCR systems can produce questionable output…

Optical character recognition (OCR) is widely applied in real applications serving as a key preprocessing tool. The adoption of deep neural network (DNN) in OCR results in the vulnerability against adversarial examples which are crafted to…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Lu Chen , Wei Xu

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…

Computation and Language · Computer Science 2012-05-09 Sajilal Divakaran

This research paper delves into the development of an Optical Character Recognition (OCR) system for the recognition of Ashokan Brahmi characters using Convolutional Neural Networks. It utilizes a comprehensive dataset of character images…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Yash Agrawal , Srinidhi Balasubramanian , Rahul Meena , Rohail Alam , Himanshu Malviya , Rohini P

The Optical Character Recognition (OCR) systems have been widely used in various of application scenarios, such as office automation (OA) systems, factory automations, online educations, map productions etc. However, OCR is still a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-16 Yuning Du , Chenxia Li , Ruoyu Guo , Xiaoting Yin , Weiwei Liu , Jun Zhou , Yifan Bai , Zilin Yu , Yehua Yang , Qingqing Dang , Haoshuang Wang

Handwritten character recognition (HCR) is a challenging problem for machine learning researchers. Unlike printed text data, handwritten character datasets have more variation due to human-introduced bias. With numerous unique character…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Boris Kriuk , Fedor Kriuk

This research paper presents a unique Bengali OCR system with some capabilities. The system excels in reconstructing document layouts while preserving structure, alignment, and images. It incorporates advanced image and signature detection…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 AKM Shahariar Azad Rabby , Hasmot Ali , Md. Majedul Islam , Sheikh Abujar , Fuad Rahman

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…

Computer Vision and Pattern Recognition · Computer Science 2013-01-03 H. R. Mamatha , S. Karthik , Murthy K. Srikanta

Optical character recognition (OCR) for historical documents is a complex procedure subject to a unique set of material issues, including inconsistencies in typefaces and low quality scanning. Consequently, even the most sophisticated OCR…

Computation and Language · Computer Science 2020-04-27 Alberto Poncelas , Mohammad Aboomar , Jan Buts , James Hadley , Andy Way

Knowledge extraction through sound is a distinctive property. Visually impaired individuals often rely solely on Braille books and audio recordings provided by NGOs. Due to limitations in these approaches, blind individuals often cannot…

Sound · Computer Science 2025-06-19 Prateek Mehta , Anasuya Patil

Document image has been the area of research for a couple of decades because of its potential application in the area of text recognition, line recognition or any other shape recognition from the image. For most of these purposes…

Computer Vision and Pattern Recognition · Computer Science 2015-02-02 Mahua Nandy , Satadal Saha

Recent advancements in deep neural networks have markedly enhanced the performance of computer vision tasks, yet the specialized nature of these networks often necessitates extensive data and high computational power. Addressing these…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Jiayou Chao , Wei Zhu

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…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Lalitha Giridhar , Aishwarya Dharani and , Velmathi Guruviah

A large number of publications are available for the Optical Character Recognition (OCR). Significant researches, as well as articles are present for the Latin, Chinese and Japanese scripts. Arabic script is also one of mature script from…

Computer Vision and Pattern Recognition · Computer Science 2014-12-16 Dil Nawaz Hakro , A. Z. Talib , Zeeshan Bhatti , G. N. Moja

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…

Computer Vision and Pattern Recognition · Computer Science 2014-04-01 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

For over 50 years, researchers have been trying to teach computers to read music notation, referred to as Optical Music Recognition (OMR). However, this field is still difficult to access for new researchers, especially those without a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Jorge Calvo-Zaragoza , Jan Hajič , Alexander Pacha