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Deep learning based methods have been dominating the text recognition tasks in different and multilingual scenarios. The offline handwritten Chinese text recognition (HCTR) is one of the most challenging tasks because it involves thousands…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Brian Liu , Xianchao Xu , Yu Zhang

Currently, the destruction of the sequence structure in handwritten text has become one of the main bottlenecks restricting the recognition task. The typical situations include additional specific markers (the text swapping modification)…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Zi-Rui Wang

A classifier is developed that defines a joint distribution of global character features, number of sub-units and local sub-unit features to model Hindi online handwritten characters. The classifier uses latent variables to model the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Anand Sharma , A. G. Ramakrishnan

Change detection is a fundamental task in computer vision that processes a bi-temporal image pair to differentiate between semantically altered and unaltered regions. Large language models (LLMs) have been utilized in various domains for…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Zhenglin Li , Yangchen Huang , Mengran Zhu , Jingyu Zhang , JingHao Chang , Houze Liu

Convolutional neural networks (CNNs) have recently become the state-of-the-art tool for large-scale image classification. In this work we propose the use of activation features from CNNs as local descriptors for writer identification. A…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Vincent Christlein , David Bernecker , Andreas Maier , Elli Angelopoulou

Online Arabic cursive character recognition is still a big challenge due to the existing complexities including Arabic cursive script styles, writing speed, writer mood and so forth. Due to these unavoidable constraints, the accuracy of…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Amjad Rehman

This paper presents the first attempt, up to our knowledge, to classify English writing styles on this scale with the challenge of classifying day to day language written by writers with different backgrounds covering various areas of…

Computation and Language · Computer Science 2017-04-26 Yanging Chen , Rami Al-Rfou' , Yejin Choi

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

Chinese characters have a complex and hierarchical graphical structure carrying both semantic and phonetic information. We use this structure to enhance the text model and obtain better results in standard NLP operations. First of all, to…

Computation and Language · Computer Science 2014-05-22 Yannis Haralambous

Scene text recognition (STR) has been an active research topic in computer vision for years. To tackle this challenging problem, numerous innovative methods have been successively proposed and incorporating linguistic knowledge into STR…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Peng Wang , Cheng Da , Cong Yao

The text-independent approach to writer identification does not require the writer to write some predetermined text. Previous research on text-independent writer identification has been based on identifying writer-specific features designed…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Hung Tuan Nguyen , Cuong Tuan Nguyen , Takeya Ino , Bipin Indurkhya , Masaki Nakagawa

Verifying the identity of a person using handwritten signatures is challenging in the presence of skilled forgeries, where a forger has access to a person's signature and deliberately attempt to imitate it. In offline (static) signature…

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

Clinical natural language processing (NLP) is increasingly in demand in both clinical research and operational practice. However, most of the state-of-the-art solutions are transformers-based and require high computational resources,…

Computation and Language · Computer Science 2025-04-18 Jianlin Shi , Qiwei Gan , Elizabeth Hanchrow , Annie Bowles , John Stanley , Adam P. Bress , Jordana B. Cohen , Patrick R. Alba

We consider the problem of the extraction of semantic attributes, supervised only with classification labels. For example, when learning to classify images of birds into species, we would like to observe the emergence of features that…

Machine Learning · Computer Science 2021-06-14 Ameen Ali , Tomer Galanti , Evgeniy Zheltonozhskiy , Chaim Baskin , Lior Wolf

Multi-layer perceptrons (MLP) have proven to be effective scene encoders when combined with higher-dimensional projections of the input, commonly referred to as \textit{positional encoding}. However, scenes with a wide frequency spectrum…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Zoe Landgraf , Alexander Sorkine Hornung , Ricardo Silveira Cabral

Due to the sparsity of features, noise has proven to be a great inhibitor in the classification of handwritten characters. To combat this, most techniques perform denoising of the data before classification. In this paper, we consolidate…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Qun Liu , Edward Collier , Supratik Mukhopadhyay

This work is focused on improving the character recognition capability of feed-forward back-propagation neural network by using one, two and three hidden layers and the modified additional momentum term. 182 English letters were collected…

Neural and Evolutionary Computing · Computer Science 2011-03-01 Amit Choudhary , Rahul Rishi

Image denoising can be described as the problem of mapping from a noisy image to a noise-free image. The best currently available denoising methods approximate this mapping with cleverly engineered algorithms. In this work we attempt to…

Computer Vision and Pattern Recognition · Computer Science 2012-11-12 Harold Christopher Burger , Christian J. Schuler , Stefan Harmeling

Cursive handwritten text recognition is a challenging research problem in the domain of pattern recognition. The current state-of-the-art approaches include models based on convolutional recurrent neural networks and multi-dimensional long…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Lalita Kumari , Sukhdeep Singh , VVS Rathore , Anuj Sharma

Character-level patterns have been widely used as features in English Named Entity Recognition (NER) systems. However, to date there has been no direct investigation of the inherent differences between name and non-name tokens in text, nor…

Computation and Language · Computer Science 2018-09-21 Xiaodong Yu , Stephen Mayhew , Mark Sammons , Dan Roth
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