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Optical character recognition (OCR) technology has been widely used in various scenes, as shown in Figure 1. Designing a practical OCR system is still a meaningful but challenging task. In previous work, considering the efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Chenxia Li , Weiwei Liu , Ruoyu Guo , Xiaoting Yin , Kaitao Jiang , Yongkun Du , Yuning Du , Lingfeng Zhu , Baohua Lai , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

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

The digitization of scanned forms and documents is changing the data sources that enterprises manage. To integrate these new data sources with enterprise data, the current state-of-the-art approach is to convert the images to ASCII text…

Databases · Computer Science 2012-01-09 Arun Kumar , Christopher Ré

The accuracy of Optical Character Recognition (OCR) is crucial to the success of subsequent applications used in text analyzing pipeline. Recent models of OCR post-processing significantly improve the quality of OCR-generated text, but are…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Jie Mei , Aminul Islam , Yajing Wu , Abidalrahman Moh'd , Evangelos E. Milios

Sanskrit is a classical language with about 30 million extant manuscripts fit for digitisation, available in written, printed or scannedimage forms. However, it is still considered to be a low-resource language when it comes to available…

Computation and Language · Computer Science 2022-11-16 Ayush Maheshwari , Nikhil Singh , Amrith Krishna , Ganesh Ramakrishnan

Scientific articles published prior to the "age of digitization" (~1997) require Optical Character Recognition (OCR) to transform scanned documents into machine-readable text, a process that often produces errors. We develop a pipeline for…

Digital Libraries · Computer Science 2023-09-22 Jill P. Naiman , Morgan G. Cosillo , Peter K. G. Williams , Alyssa Goodman

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…

Computation and Language · Computer Science 2021-10-25 Allen Kim , Charuta Pethe , Naoya Inoue , Steve Skiena

In this paper I have proposed a method to find the major pixel intensity inside the text and thresholding an image accordingly to make it easier to be used for optical character recognition (OCR) models. In our method, instead of editing…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Rohan Lal Kshetry

We present OCR-Quality, a comprehensive human-annotated dataset designed for evaluating and developing OCR quality assessment methods. The dataset consists of 1,000 PDF pages converted to PNG images at 300 DPI, sampled from diverse…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yulong Zhang

Optical Character Recognition (OCR) on contemporary and historical data is still in the focus of many researchers. Especially historical prints require book specific trained OCR models to achieve applicable results (Springmann and…

Computer Vision and Pattern Recognition · Computer Science 2021-01-15 Christoph Wick , Christian Reul , Frank Puppe

While recent advancements in Image Super-Resolution (SR) using diffusion models have shown promise in improving overall image quality, their application to scene text images has revealed limitations. These models often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Keren Ye , Ignacio Garcia Dorado , Michalis Raptis , Mauricio Delbracio , Irene Zhu , Peyman Milanfar , Hossein Talebi

The study investigates the potential of post-OCR models to overcome limitations in OCR models and explores the impact of incorporating glyph embedding on post-OCR correction performance. In this study, we have developed our own post-OCR…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Yung-Hsin Chen , Yuli Zhou

Optical character recognition (OCR) methods have been applied to diverse tasks, e.g., street view text recognition and document analysis. Recently, zero-shot OCR has piqued the interest of the research community because it considers a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Xiaolei Diao , Daqian Shi , Jian Li , Lida Shi , Mingzhe Yue , Ruihua Qi , Chuntao Li , Hao Xu

Despite the existence of numerous Optical Character Recognition (OCR) tools, the lack of comprehensive open-source systems hampers the progress of document digitization in various low-resource languages, including Bengali. Low-resource…

Optical Character Recognition (OCR) in multilingual, noisy, and diverse real-world images remains a significant challenge for optical character recognition systems. With the rise of Large Vision-Language Models (LVLMs), there is growing…

Computation and Language · Computer Science 2025-09-05 Aryan Gupta , Anupam Purwar

Despite their cultural and historical significance, Black digital archives continue to be a structurally underrepresented area in AI research and infrastructure. This is especially evident in efforts to digitize historical Black newspapers,…

Digital Libraries · Computer Science 2025-09-17 Fitsum Sileshi Beyene , Christopher L. Dancy

Arabic is one of the languages that present special challenges to Optical character recognition (OCR). The main challenge in Arabic is that it is mostly cursive. Therefore, a segmentation process must be carried out to determine where the…

Computer Vision and Pattern Recognition · Computer Science 2017-07-05 Mahmoud A. A. Mousa , Mohammed S. Sayed , Mahmoud I. Abdalla

What happens if we encounter a suitable font for our design work but do not know its name? Visual Font Recognition (VFR) systems are used to identify the font typeface in an image. These systems can assist graphic designers in identifying…

Computer Vision and Pattern Recognition · Computer Science 2023-10-11 Mehrdad Mohammadian , Neda Maleki , Tobias Olsson , Fredrik Ahlgren

Optical character recognition (OCR) has advanced rapidly with the rise of vision-language models, yet evaluation has remained concentrated on a small cluster of high- and mid-resource scripts. We introduce GlotOCR Bench, a comprehensive…

Computation and Language · Computer Science 2026-04-15 Amir Hossein Kargaran , Nafiseh Nikeghbal , Jana Diesner , François Yvon , Hinrich Schütze

Classifying pages or text lines into font categories aids transcription because single font Optical Character Recognition (OCR) is generally more accurate than omni-font OCR. We present a simple framework based on Convolutional Neural…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Chris Tensmeyer , Daniel Saunders , Tony Martinez