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Word error rate of an ocr is often higher than its character error rate. This is especially true when ocrs are designed by recognizing characters. High word accuracies are critical to tasks like the creation of content in digital libraries…

Computer Vision and Pattern Recognition · Computer Science 2019-05-29 Deepayan Das , Jerin Philip , Minesh Mathew , C. V. Jawahar

Document comparison typically relies on optical character recognition (OCR) as its core technology. However, OCR requires the selection of appropriate language models for each document and the performance of multilingual or hybrid models…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Doyoung Park , Naresh Reddy Yarram , Sunjin Kim , Minkyu Kim , Seongho Cho , Taehee Lee

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

Retrieval-Augmented Generation (RAG) has become a popular technique for enhancing the reliability and utility of Large Language Models (LLMs) by grounding responses in external documents. Traditional RAG systems rely on Optical Character…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Alexander Most , Joseph Winjum , Ayan Biswas , Shawn Jones , Nishath Rajiv Ranasinghe , Dan O'Malley , Manish Bhattarai

Oriented object detection is a fundamental yet challenging task in remote sensing (RS), aiming to locate and classify objects with arbitrary orientations. Recent advancements in deep learning have significantly enhanced the capabilities of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Kun Wang , Zi Wang , Zhang Li , Ang Su , Xichao Teng , Erting Pan , Minhao Liu , Qifeng Yu

Since the dawn of the computing era, information has been represented digitally so that it can be processed by electronic computers. Paper books and documents were abundant and widely being published at that time; and hence, there was a…

Computation and Language · Computer Science 2012-04-03 Youssef Bassil , Mohammad Alwani

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

Detecting manipulations in digital documents is becoming increasingly important for information verification purposes. Due to the proliferation of image editing software, altering key information in documents has become widely accessible.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Hailey Joren , Otkrist Gupta , Dan Raviv

We present \textbf{LightOnOCR-2-1B}, a 1B-parameter end-to-end multilingual vision--language model that converts document images (e.g., PDFs) into clean, naturally ordered text without brittle OCR pipelines. Trained on a large-scale,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Said Taghadouini , Adrien Cavaillès , Baptiste Aubertin

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

Not everybody can be equipped with professional photography skills and sufficient shooting time, and there can be some tilts in the captured images occasionally. In this paper, we propose a new and practical task, named Rotation Correction,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Lang Nie , Chunyu Lin , Kang Liao , Shuaicheng Liu , Yao Zhao

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

Optical Character Recognition (OCR), the task of extracting textual information from scanned documents is a vital and broadly used technology for digitizing and indexing physical documents. Existing technologies perform well for clean…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Daniel Rotman , Ophir Azulai , Inbar Shapira , Yevgeny Burshtein , Udi Barzelay

Recent advances in Multi-modal Large Language Models (MLLMs) have showcased remarkable capabilities in vision-language understanding. However, enabling robust video spatial reasoning-the ability to comprehend object locations, orientations,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Haoran Tang , Meng Cao , Ruyang Liu , Xiaoxi Liang , Linglong Li , Ge Li , Xiaodan Liang

We investigate to what extent Multimodal Large Language Models (MLLMs) can accurately identify the orientation of input images rotated 0{\deg}, 90{\deg}, 180{\deg}, and 270{\deg}. This task demands robust visual reasoning capabilities to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Tianyi Niu , Jaemin Cho , Elias Stengel-Eskin , Mohit Bansal

Document parsing is a core task in document intelligence, supporting applications such as information extraction, retrieval-augmented generation, and automated document analysis. However, real-world documents often feature complex layouts…

This paper introduces PreP-OCR, a two-stage pipeline that combines document image restoration with semantic-aware post-OCR correction to enhance both visual clarity and textual consistency, thereby improving text extraction from degraded…

Computation and Language · Computer Science 2025-11-19 Shuhao Guan , Moule Lin , Cheng Xu , Xinyi Liu , Jinman Zhao , Jiexin Fan , Qi Xu , Derek Greene

Orientation is a key attribute of objects, crucial for understanding their spatial pose and arrangement in images. However, practical solutions for accurate orientation estimation from a single image remain underexplored. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Zehan Wang , Ziang Zhang , Tianyu Pang , Chao Du , Hengshuang Zhao , Zhou Zhao

Optical character recognition (OCR), a process that converts printed or handwritten text into machine-readable form, is widely used in assistive technology for people with blindness and low vision. Yet most evaluations rely on static…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Junchi Feng , Nikhil Ballem , Mahya Beheshti , Giles Hamilton-Fletcher , Todd Hudson , Maurizio Porfiri , William H. Seiple , John-Ross Rizzo

Given the ubiquity of handwritten documents in human transactions, Optical Character Recognition (OCR) of documents have invaluable practical worth. Optical character recognition is a science that enables to translate various types of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Jamshed Memon , Maira Sami , Rizwan Ahmed Khan