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Historical documents present many challenges for offline handwriting recognition systems, among them, the segmentation and labeling steps.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…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Edgard Chammas , Chafic Mokbel , Laurence Likforman-Sulem

Unconstrained handwritten text recognition remains challenging for computer vision systems. Paragraph text recognition is traditionally achieved by two models: the first one for line segmentation and the second one for text line…

Computer Vision and Pattern Recognition · Computer Science 2022-01-28 Denis Coquenet , Clément Chatelain , Thierry Paquet

Offline Handwritten Text Recognition (HTR) systems play a crucial role in applications such as historical document digitization, automatic form processing, and biometric authentication. However, their performance is often hindered by the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Yassin Hussein Rassul , Aram M. Ahmed , Polla Fattah , Bryar A. Hassan , Arwaa W. Abdulkareem , Tarik A. Rashid , Joan Lu

In this work, we tackle the problem of car license plate detection and recognition in natural scene images. Inspired by the success of deep neural networks (DNNs) in various vision applications, here we leverage DNNs to learn high-level…

Computer Vision and Pattern Recognition · Computer Science 2016-01-22 Hui Li , Chunhua Shen

Offline reinforcement learning (RL) can be used to improve future performance by leveraging historical data. There exist many different algorithms for offline RL, and it is well recognized that these algorithms, and their hyperparameter…

Machine Learning · Computer Science 2023-01-18 Allen Nie , Yannis Flet-Berliac , Deon R. Jordan , William Steenbergen , Emma Brunskill

In this paper, we introduce a novel technique to recover the pen trajectory of offline characters which is a crucial step for handwritten character recognition. Generally, online acquisition approach has more advantage than its offline…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Ayan Kumar Bhunia , Abir Bhowmick , Ankan Kumar Bhunia , Aishik Konwer , Prithaj Banerjee , Partha Pratim Roy , Umapada Pal

In this work we propose a hybrid NN/HMM model for online Arabic handwriting recognition. The proposed system is based on Hidden Markov Models (HMMs) and Multi Layer Perceptron Neural Networks (MLPNNs). The input signal is segmented to…

Computer Vision and Pattern Recognition · Computer Science 2014-01-03 Najiba Tagougui , Houcine Boubaker , Monji Kherallah , Adel M. ALIMI

Like other problems in computer vision, offline handwritten Chinese character recognition (HCCR) has achieved impressive results using convolutional neural network (CNN)-based methods. However, larger and deeper networks are needed to…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Xuefeng Xiao , Lianwen Jin , Yafeng Yang , Weixin Yang , Jun Sun , Tianhai Chang

Named entity recognition is a challenging task that has traditionally required large amounts of knowledge in the form of feature engineering and lexicons to achieve high performance. In this paper, we present a novel neural network…

Computation and Language · Computer Science 2016-07-20 Jason P. C. Chiu , Eric Nichols

Deep LSTM is an ideal candidate for text recognition. However text recognition involves some initial image processing steps like segmentation of lines and words which can induce error to the recognition system. Without segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2015-02-27 Anupama Ray , Sai Rajeswar , Santanu Chaudhury

Understanding the meaning of text in images of natural scenes like highway signs or store front emblems is particularly challenging if the text is foreshortened in the image or the letters are artistically distorted. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Qitong Wang , Yi Zheng , Margrit Betke

Research on Offline Handwritten Signature Verification explored a large variety of handcrafted feature extractors, ranging from graphology, texture descriptors to interest points. In spite of advancements in the last decades, performance of…

Computer Vision and Pattern Recognition · Computer Science 2017-05-17 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Just like its remarkable achievements in many computer vision tasks, the convolutional neural networks (CNN) provide an end-to-end solution in handwritten Chinese character recognition (HCCR) with great success. However, the process of…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Zhiyuan Li , Min Jin , Qi Wu , Huaxiang Lu

Automatic identification of script is an essential component of a multilingual OCR engine. In this paper, we present an efficient, lightweight, real-time and on-device spatial attention based CNN-LSTM network for scene text script…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Rutika Moharir , Arun D Prabhu , Sukumar Moharana , Gopi Ramena , Rachit S Munjal

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. In offline (static) signature verification, the dynamic information of the signature writing process is…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Sourya Dipta Das , Himanshu Ladia , Vaibhav Kumar , Shivansh Mishra

A novel, generic scheme for off-line handwritten English alphabets character images is proposed. The advantage of the technique is that it can be applied in a generic manner to different applications and is expected to perform better in…

Computer Vision and Pattern Recognition · Computer Science 2010-07-01 Sandhya Arora , Latesh Malik , Debotosh Bhattacharjee , Mita Nasipuri

In this paper, we propose an RNN-Transducer model for recognizing Japanese and Chinese offline handwritten text line images. As far as we know, it is the first approach that adopts the RNN-Transducer model for offline handwritten text…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Trung Tan Ngo , Hung Tuan Nguyen , Nam Tuan Ly , Masaki Nakagawa

Handwritten Word Recognition and Spotting is a challenging field dealing with handwritten text possessing irregular and complex shapes. The design of deep neural network models makes it necessary to extend training datasets in order to…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Ayan Kumar Bhunia , Abhirup Das , Ankan Kumar Bhunia , Perla Sai Raj Kishore , Partha Pratim Roy

In this paper, the concept of representation learning based on deep neural networks is applied as an alternative to the use of handcrafted features in a method for automatic visual inspection of corroded thermoelectric metallic pipes. A…

Computer Vision and Pattern Recognition · Computer Science 2019-05-30 Daniel Vriesman , Alessandro Zimmer , Alceu S. Britto , Alessandro L. Koerich

Unconstrained handwritten text recognition is a challenging computer vision task. It is traditionally handled by a two-step approach, combining line segmentation followed by text line recognition. For the first time, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2023-01-12 Denis Coquenet , Clément Chatelain , Thierry Paquet