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Captcha are widely used to secure systems from automatic responses by distinguishing computer responses from human responses. Text, audio, video, picture picture-based Optical Character Recognition (OCR) are used for creating captcha.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Vaibhav Khatavkar , Makarand Velankar , Sneha Petkar

We develop a Deep-Text Recurrent Network (DTRN) that regards scene text reading as a sequence labelling problem. We leverage recent advances of deep convolutional neural networks to generate an ordered high-level sequence from a whole word…

Computer Vision and Pattern Recognition · Computer Science 2015-12-22 Pan He , Weilin Huang , Yu Qiao , Chen Change Loy , Xiaoou Tang

We propose a fully convolutional sequence-to-sequence encoder architecture with a simple and efficient decoder. Our model improves WER on LibriSpeech while being an order of magnitude more efficient than a strong RNN baseline. Key to our…

Computation and Language · Computer Science 2019-04-05 Awni Hannun , Ann Lee , Qiantong Xu , Ronan Collobert

The advent of recurrent neural networks for handwriting recognition marked an important milestone reaching impressive recognition accuracies despite the great variability that we observe across different writing styles. Sequential…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Lei Kang , Pau Riba , Marçal Rusiñol , Alicia Fornés , Mauricio Villegas

Typical text recognition methods rely on an encoder-decoder structure, in which the encoder extracts features from an image, and the decoder produces recognized text from these features. In this study, we propose a simpler and more…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Masato Fujitake

Acoustic Event Classification (AEC) has become a significant task for machines to perceive the surrounding auditory scene. However, extracting effective representations that capture the underlying characteristics of the acoustic events is…

Sound · Computer Science 2021-06-22 Zixing Zhang , Ding Liu , Jing Han , Kun Qian , Björn Schuller

Learning to solve sequential tasks with recurrent models requires the ability to memorize long sequences and to extract task-relevant features from them. In this paper, we study the memorization subtask from the point of view of the design…

Machine Learning · Computer Science 2020-02-03 Antonio Carta , Alessandro Sperduti , Davide Bacciu

Encoder-decoder recurrent neural network models (RNN Seq2Seq) have achieved great success in ubiquitous areas of computation and applications. It was shown to be successful in modeling data with both temporal and spatial dependencies for…

Machine Learning · Computer Science 2020-02-03 Kun Su , Eli Shlizerman

We frame the task of predicting a semantic labeling as a sparse reconstruction procedure that applies a target-specific learned transfer function to a generic deep sparse code representation of an image. This strategy partitions training…

Computer Vision and Pattern Recognition · Computer Science 2014-10-17 Michael Maire , Stella X. Yu , Pietro Perona

In this work, we learn a shared encoding representation for a multi-task neural network model optimized with connectionist temporal classification (CTC) and conventional framewise cross-entropy training criteria. Our experiments show that…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-04 Thai-Son Nguyen , Sebastian Stueker , Alex Waibel

Generating longer textual sequences when conditioned on the visual information is an interesting problem to explore. The challenge here proliferate over the standard vision conditioned sentence-level generation (e.g., image or video…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Aditya Mogadala , Marius Mosbach , Dietrich Klakow

This work proposes an attention-based sequence-to-sequence model for handwritten word recognition and explores transfer learning for data-efficient training of HTR systems. To overcome training data scarcity, this work leverages models…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Dmitrijs Kass , Ekta Vats

Recently, end-to-end speech recognition with a hybrid model consisting of the connectionist temporal classification(CTC) and the attention encoder-decoder achieved state-of-the-art results. In this paper, we propose a novel CTC decoder…

Sound · Computer Science 2018-11-02 Zhe Yuan , Zhuoran Lyu , Jiwei Li , Xi Zhou

Convolutional Neural Networks (CNNs) are effective models for reducing spectral variations and modeling spectral correlations in acoustic features for automatic speech recognition (ASR). Hybrid speech recognition systems incorporating CNNs…

Computation and Language · Computer Science 2017-01-11 Ying Zhang , Mohammad Pezeshki , Philemon Brakel , Saizheng Zhang , Cesar Laurent Yoshua Bengio , Aaron Courville

Inspired by the recent successes of deep learning on Computer Vision and Natural Language Processing, we present a deep learning approach for recognizing scanned receipts. The recognition system has two main modules: text detection based on…

Computer Vision and Pattern Recognition · Computer Science 2019-05-31 Anh Duc Le , Dung Van Pham , Tuan Anh Nguyen

Unconstrained text recognition is an important computer vision task, featuring a wide variety of different sub-tasks, each with its own set of challenges. One of the biggest promises of deep neural networks has been the convergence and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Mohamed Yousef , Khaled F. Hussain , Usama S. Mohammed

In recent years, notable advancements have been made in the domain of visual document understanding, with the prevailing architecture comprising a cascade of vision and language models. The text component can either be extracted explicitly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Ofir Abramovich , Niv Nayman , Sharon Fogel , Inbal Lavi , Ron Litman , Shahar Tsiper , Royee Tichauer , Srikar Appalaraju , Shai Mazor , R. Manmatha

In this paper we explore the task of modeling semi-structured object sequences; in particular, we focus our attention on the problem of developing a structure-aware input representation for such sequences. Examples of such data include user…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Rudra Murthy , Riyaz Bhat , Chulaka Gunasekara , Siva Sankalp Patel , Hui Wan , Tejas Indulal Dhamecha , Danish Contractor , Marina Danilevsky

Recent advancements in diffusion models have introduced fast sampling methods that can effectively produce high-quality images in just one or a few denoising steps. Interestingly, when these are distilled from existing diffusion models,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Rinon Gal , Or Lichter , Elad Richardson , Or Patashnik , Amit H. Bermano , Gal Chechik , Daniel Cohen-Or

Recent genomic foundation models largely adopt large language model architectures that treat DNA as a one-dimensional token sequence. However, exhaustive sequential reading is structurally misaligned with sparse and discontinuous genomic…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Hongxin Xiang , Pengsen Ma , Yunkang Cao , Di Yu , Haowen Chen , Xinyu Yang , Xiangxiang Zeng