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Connectionist temporal classification (CTC)-based scene text recognition (STR) methods, e.g., SVTR, are widely employed in OCR applications, mainly due to their simple architecture, which only contains a visual model and a CTC-aligned…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Yongkun Du , Zhineng Chen , Hongtao Xie , Caiyan Jia , Yu-Gang Jiang

Phonetic speech transcription is crucial for fine-grained linguistic analysis and downstream speech applications. While Connectionist Temporal Classification (CTC) is a widely used approach for such tasks due to its efficiency, it often…

Current continuous sign language recognition (CSLR) methods struggle with handling diverse samples. Although dynamic convolutions are ideal for this task, they mainly focus on spatial modeling and fail to capture the temporal dynamics and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Sheng Liu , Yiheng Yu , Yuan Feng , Min Xu , Zhelun Jin , Yining Jiang , Tiantian Yuan

The connectionist temporal classification (CTC) enables end-to-end sequence learning by maximizing the probability of correctly recognizing sequences during training. The outputs of a CTC-trained model tend to form a series of spikes…

Computer Vision and Pattern Recognition · Computer Science 2020-07-08 Hongzhu Li , Weiqiang Wang

Recent deep learning models have demonstrated strong capabilities for classifying text and non-text components in natural images. They extract a high-level feature computed globally from a whole image component (patch), where the cluttered…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Tong He , Weilin Huang , Yu Qiao , Jian Yao

Scene text recognition with arbitrary shape is very challenging due to large variations in text shapes, fonts, colors, backgrounds, etc. Most state-of-the-art algorithms rectify the input image into the normalized image, then treat the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Xinjie Feng , Hongxun Yao , Yuankai Qi , Jun Zhang , Shengping Zhang

In this work we present a state-of-the-art approach for unconstrained natural scene text recognition. We propose a cascade approach that incorporates a convolutional neural network (CNN) architecture followed by a long short term memory…

Computer Vision and Pattern Recognition · Computer Science 2016-07-22 Ahmed Mamdouh A. Hassanien

Contextually Guided Convolutional Neural Networks (CG-CNNs) employ self-supervision and contextual information to develop transferable features across diverse domains, including visual, tactile, temporal, and textual data. This work…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Olcay Kursun , Ahmad Patooghy , Peyman Poursani , Oleg V. Favorov

Encoder-decoder models have become an effective approach for sequence learning tasks like machine translation, image captioning and speech recognition, but have yet to show competitive results for handwritten text recognition. To this end,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Johannes Michael , Roger Labahn , Tobias Grüning , Jochen Zöllner

Models for streaming speech translation (ST) can achieve high accuracy and low latency if they're developed with vast amounts of paired audio in the source language and written text in the target language. Yet, these text labels for the…

Computation and Language · Computer Science 2024-10-08 Rui Zhao , Jinyu Li , Ruchao Fan , Matt Post

Most existing sequence labelling models rely on a fixed decomposition of a target sequence into a sequence of basic units. These methods suffer from two major drawbacks: 1) the set of basic units is fixed, such as the set of words,…

Computation and Language · Computer Science 2017-08-15 Hairong Liu , Zhenyao Zhu , Xiangang Li , Sanjeev Satheesh

The success of self-attention in NLP has led to recent applications in end-to-end encoder-decoder architectures for speech recognition. Separately, connectionist temporal classification (CTC) has matured as an alignment-free,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-02 Julian Salazar , Katrin Kirchhoff , Zhiheng Huang

Scene text recognition has recently been widely treated as a sequence-to-sequence prediction problem, where traditional fully-connected-LSTM (FC-LSTM) has played a critical role. Due to the limitation of FC-LSTM, existing methods have to…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Qingqing Wang , Wenjing Jia , Xiangjian He , Yue Lu , Michael Blumenstein , Ye Huang

Text classification aims to assign labels to textual units by making use of global information. Recent studies have applied graph neural network (GNN) to capture the global word co-occurrence in a corpus. Existing approaches require that…

Computation and Language · Computer Science 2022-06-02 Kunze Wang , Soyeon Caren Han , Josiah Poon

End-to-end speech recognition models trained using joint Connectionist Temporal Classification (CTC)-Attention loss have gained popularity recently. In these models, a non-autoregressive CTC decoder is often used at inference time due to…

Computation and Language · Computer Science 2022-11-15 Saket Dingliwal , Monica Sunkara , Sravan Bodapati , Srikanth Ronanki , Jeff Farris , Katrin Kirchhoff

The Connectionist Temporal Classification (CTC) has achieved great success in sequence to sequence analysis tasks such as automatic speech recognition (ASR) and scene text recognition (STR). These applications can use the CTC objective…

Signal Processing · Electrical Eng. & Systems 2019-09-09 Siyuan Lu , Jinming Lu , Jun Lin , Zhongfeng Wang

Punctuated text prediction is crucial for automatic speech recognition as it enhances readability and impacts downstream natural language processing tasks. In streaming scenarios, the ability to predict punctuation in real-time is…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-31 Hanbyul Kim , Seunghyun Seo , Lukas Lee , Seolki Baek

Skeleton-based action recognition has become popular in recent years due to its efficiency and robustness. Most current methods adopt graph convolutional network (GCN) for topology modeling, but GCN-based methods are limited in…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Jinzhao Luo , Lu Zhou , Guibo Zhu , Guojing Ge , Beiying Yang , Jinqiao Wang

Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. We think the key to skeleton-based action recognition is a skeleton hanging in frames, so we focus on how the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Nguyen Huu Bao Long

Multi-modal models have shown appealing performance in visual recognition tasks, as free-form text-guided training evokes the ability to understand fine-grained visual content. However, current models cannot be trivially applied to scene…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Yongkun Du , Zhineng Chen , Yuchen Su , Caiyan Jia , Yu-Gang Jiang