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Optical Character Recognition (OCR) has been a topic of interest for many years. It is defined as the process of digitizing a document image into its constituent characters. Despite decades of intense research, developing OCR with…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Noman Islam , Zeeshan Islam , Nazia Noor

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

Optical character recognition (OCR) is crucial for a deeper access to historical collections. OCR needs to account for orthographic variations, typefaces, or language evolution (i.e., new letters, word spellings), as the main source of…

Computation and Language · Computer Science 2021-02-02 Lijun Lyu , Maria Koutraki , Martin Krickl , Besnik Fetahu

We present an end-to-end trainable approach for Optical Character Recognition (OCR) on printed documents. Specifically, we propose a model that predicts a) a two-dimensional character grid (\emph{chargrid}) representation of a document…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Christian Reisswig , Anoop R Katti , Marco Spinaci , Johannes Höhne

Optical character recognition (OCR) is a widely used pattern recognition application in numerous domains. There are several feature-rich, general-purpose OCR solutions available for consumers, which can provide moderate to excellent…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Ayantha Randika , Nilanjan Ray , Xiao Xiao , Allegra Latimer

Billions of public domain documents remain trapped in hard copy or lack an accurate digitization. Modern natural language processing methods cannot be used to index, retrieve, and summarize their texts; conduct computational textual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Tom Bryan , Jacob Carlson , Abhishek Arora , Melissa Dell

While OCR has been used in various applications, its output is not always accurate, leading to misfit words. This research work focuses on improving the optical character recognition (OCR) with ML techniques with integration of OCR with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Abhishek Bamotra , Phani Krishna Uppala

Optical character recognition (OCR) is a vital process that involves the extraction of handwritten or printed text from scanned or printed images, converting it into a format that can be understood and processed by machines. This enables…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Mahmoud SalahEldin Kasem , Mohamed Mahmoud , Hyun-Soo Kang

We propose an end-to-end recurrent encoder-decoder based sequence learning approach for printed text Optical Character Recognition (OCR). In contrast to present day existing state-of-art OCR solution which uses connectionist temporal…

Computer Vision and Pattern Recognition · Computer Science 2015-12-29 Devendra Kumar Sahu , Mohak Sukhwani

Language models are useful adjuncts to optical models for producing accurate optical character recognition (OCR) results. One factor which limits the power of language models in this context is the existence of many specialized domains with…

Computation and Language · Computer Science 2023-08-21 Peter Garst , Reeve Ingle , Yasuhisa Fujii

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 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…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Singh Vijendra , Nisha Vasudeva , Hem Jyotsana Parashar

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

Optical Character Recognition (OCR) is the process of extracting digitized text from images of scanned documents. While OCR systems have already matured in many languages, they still have shortcomings in cursive languages with overlapping…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Hussein Osman , Karim Zaghw , Mostafa Hazem , Seifeldin Elsehely

Optical Character Recognition (OCR) is a fundamental task for digitizing information, serving as a critical bridge between visual data and textual understanding. While modern Vision-Language Models (VLM) have achieved high accuracy in this…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Sean Man , Gilad Deutch , Roy Ganz , Roi Ronen , Shahar Tsiper , Shai Mazor , Niv Nayman

Contrary to popular belief, Optical Character Recognition (OCR) remains a challenging problem when text occurs in unconstrained environments, like natural scenes, due to geometrical distortions, complex backgrounds, and diverse fonts. In…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Marcin Namysl , Iuliu Konya

Recent genomic foundation models largely adopt large language model architectures that treat DNA as a one-dimensional token sequence. However, exhaustive sequential reading is structurally misaligned with sparse and discontinuous genomic…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Hongxin Xiang , Pengsen Ma , Yunkang Cao , Di Yu , Haowen Chen , Xinyu Yang , Xiangxiang Zeng

Optical Character Recognition (OCR) has many real world applications. The existing methods normally detect where the characters are, and then recognize the character for each detected location. Thus the accuracy of characters recognition is…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Baohua Sun , Michael Lin , Hao Sha , Lin Yang

Autonomous LLM agents increasingly operate in long-horizon, interactive settings where success depends on reusing experience accumulated over extended histories. However, existing agent memory systems are fundamentally constrained by…

Computation and Language · Computer Science 2026-04-30 Jinze Li , Yang Zhang , Xin Yang , Jiayi Qu , Jinfeng Xu , Shuo Yang , Junhua Ding , Edith Cheuk-Han Ngai

Detection and recognition of text from scans and other images, commonly denoted as Optical Character Recognition (OCR), is a widely used form of automated document processing with a number of methods available. Yet OCR systems still do not…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Krzysztof Olejniczak , Milan Šulc
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