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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…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Shashank Vempati , Nishit Anand , Gaurav Talebailkar , Arpan Garai , Chetan Arora

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…

计算机视觉与模式识别 · 计算机科学 2020-02-28 Christian Reisswig , Anoop R Katti , Marco Spinaci , Johannes Höhne

Detecting and recognizing text in natural scene images is a challenging, yet not completely solved task. In re- cent years several new systems that try to solve at least one of the two sub-tasks (text detection and text recognition) have…

计算机视觉与模式识别 · 计算机科学 2017-07-28 Christian Bartz , Haojin Yang , Christoph Meinel

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…

数字图书馆 · 计算机科学 2023-09-22 Jill P. Naiman , Morgan G. Cosillo , Peter K. G. Williams , Alyssa Goodman

This paper presents a new approach to the problem of correcting speech recognition errors by means of post-editing. It consists of using a neural sequence tagger that learns how to correct an ASR (Automatic Speech Recognition) hypothesis…

计算与语言 · 计算机科学 2024-06-13 Tomasz Ziętkiewicz

The focus of our paper is the identification and correction of non-word errors in OCR text. Such errors may be the result of incorrect insertion, deletion, or substitution of a character, or the transposition of two adjacent characters…

计算与语言 · 计算机科学 2021-06-24 Junxia Lin , Johannes Ledolter

Automatic analysis of scanned historical documents comprises a wide range of image analysis tasks, which are often challenging for machine learning due to a lack of human-annotated learning samples. With the advent of deep neural networks,…

计算机视觉与模式识别 · 计算机科学 2019-05-23 Linda Studer , Michele Alberti , Vinaychandran Pondenkandath , Pinar Goktepe , Thomas Kolonko , Andreas Fischer , Marcus Liwicki , Rolf Ingold

Recent deep learning based methods have achieved the state-of-the-art performance for handwritten Chinese character recognition (HCCR) by learning discriminative representations directly from raw data. Nevertheless, we believe that the…

计算机视觉与模式识别 · 计算机科学 2016-06-21 Xu-Yao Zhang , Yoshua Bengio , Cheng-Lin Liu

For digitizing or indexing physical documents, Optical Character Recognition (OCR), the process of extracting textual information from scanned documents, is a vital technology. When a document is visually damaged or contains non-textual…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Oshri Naparstek , Ophir Azulai , Daniel Rotman , Yevgeny Burshtein , Peter Staar , Udi Barzelay

Natural language correction has the potential to help language learners improve their writing skills. While approaches with separate classifiers for different error types have high precision, they do not flexibly handle errors such as…

计算与语言 · 计算机科学 2016-04-01 Ziang Xie , Anand Avati , Naveen Arivazhagan , Dan Jurafsky , Andrew Y. Ng

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…

计算机视觉与模式识别 · 计算机科学 2020-01-03 Jamshed Memon , Maira Sami , Rizwan Ahmed Khan

Diacritics restoration is a mandatory step for adequately processing Romanian texts, and not a trivial one, as you generally need context in order to properly restore a character. Most previous methods which were experimented for Romanian…

计算与语言 · 计算机科学 2020-09-08 Stefan Ruseti , Teodor-Mihai Cotet , Mihai Dascalu

Recurrent Neural Networks (RNN) have recently achieved the best performance in off-line Handwriting Text Recognition. At the same time, learning RNN by gradient descent leads to slow convergence, and training times are particularly long…

机器学习 · 计算机科学 2013-12-09 Jérôme Louradour , Christopher Kermorvant

Despite the ubiquity of mobile and wearable text messaging applications, the problem of keyboard text decoding is not tackled sufficiently in the light of the enormous success of the deep learning Recurrent Neural Network (RNN) and…

计算与语言 · 计算机科学 2017-09-20 Shaona Ghosh , Per Ola Kristensson

Historical documents present many challenges for offline handwriting recognition systems, among them, the segmentation and labeling steps. Carefully annotated textlines are needed to train an HTR system. In some scenarios, transcripts are…

计算机视觉与模式识别 · 计算机科学 2018-11-20 Edgard Chammas , Chafic Mokbel , Laurence Likforman-Sulem

The accuracy of OCR is usually affected by the quality of the input document image and different kinds of marred document images hamper the OCR results. Among these scenarios, the low-resolution image is a common and challenging case. In…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Zhichao Fu , Yu Kong , Yingbin Zheng , Hao Ye , Wenxin Hu , Jing Yang , Liang He

Bahnar, a minority language spoken across Vietnam, Cambodia, and Laos, faces significant preservation challenges due to limited research and data availability. This study addresses the critical need for accurate digitization of Bahnar…

计算与语言 · 计算机科学 2026-01-07 Phat Tran , Phuoc Pham , Hung Trinh , Tho Quan

Optical character recognition (OCR) is a process of converting analogue documents into digital using document images. Currently, many commercial and non-commercial OCR systems exist for both handwritten and printed copies for different…

计算机视觉与模式识别 · 计算机科学 2021-05-11 Farisa Benta Safir , Abu Quwsar Ohi , M. F. Mridha , Muhammad Mostafa Monowar , Md. Abdul Hamid

Optical Character Recognition (OCR) on historical printings is a challenging task mainly due to the complexity of the layout and the highly variant typography. Nevertheless, in the last few years great progress has been made in the area of…

We aim to investigate the performance of current OCR systems on low resource languages and low resource scripts. We introduce and make publicly available a novel benchmark, OCR4MT, consisting of real and synthetic data, enriched with noise,…

计算与语言 · 计算机科学 2022-03-15 Oana Ignat , Jean Maillard , Vishrav Chaudhary , Francisco Guzmán