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With the recent advances of deep learning, automatic target recognition (ATR) of synthetic aperture radar (SAR) has achieved superior performance. By not being limited to the target category, the SAR ATR system could benefit from the…

Image and Video Processing · Electrical Eng. & Systems 2023-08-15 Chenwei Wang , Jifang Pei , Zhiyong Wang , Yulin Huang , Junjie Wu , Haiguang Yang , Jianyu Yang

Synthetic aperture radar automatic target recognition (SAR-ATR) systems have rapidly evolved to tackle incremental recognition challenges in operational settings. Data scarcity remains a major hurdle that conventional SAR-ATR techniques…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 George Karantaidis , Athanasios Pantsios , Ioannis Kompatsiaris , Symeon Papadopoulos

Labeled data used for training activity recognition classifiers are usually limited in terms of size and diversity. Thus, the learned model may not generalize well when used in real-world use cases. Semi-supervised learning augments labeled…

Machine Learning · Computer Science 2018-01-25 Ming Zeng , Tong Yu , Xiao Wang , Le T. Nguyen , Ole J. Mengshoel , Ian Lane

Automatic Target Recognition (ATR) in Synthetic aperture radar (SAR) images becomes a very challenging problem owing to containing high level noise. In this study, a machine learning-based method is proposed to detect different moving and…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Umut Özkaya

This paper considers the impact of automatic segmentation on the fully-automatic, semi-supervised training of automatic speech recognition (ASR) systems for five-lingual code-switched (CS) speech. Four automatic segmentation techniques were…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-15 N. Wilkinson , A. Biswas , E. Yılmaz , F. de Wet , E. van der Westhuizen , T. R. Niesler

In real-world scenarios, it may not always be possible to collect hundreds of labeled samples per class for training deep learning-based SAR Automatic Target Recognition (ATR) models. This work specifically tackles the few-shot SAR ATR…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Nathan Inkawhich

Current state-of-the-art methods for skeleton-based action recognition are supervised and rely on labels. The reliance is limiting the performance due to the challenges involved in annotation and mislabeled data. Unsupervised methods have…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Jingyuan Li , Eli Shlizerman

Synthetic Aperture Radar SAR Automatic Target Recognition ATR is a key technique of remote-sensing image recognition which can be supported by deep neural networks The existing works of SAR ATR mostly focus on improving the accuracy of the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Jacob Fein-Ashley , Tian Ye , Rajgopal Kannan , Viktor Prasanna , Carl Busart

Without sufficient data, the quantity of information available for supervised training is constrained, as obtaining sufficient synthetic aperture radar (SAR) training data in practice is frequently challenging. Therefore, current SAR…

Image and Video Processing · Electrical Eng. & Systems 2023-09-04 Chenwei Wang , Siyi Luo , Yulin Huang , Jifang Pei , Yin Zhang , Jianyu Yang

State-of-the-art approaches for semantic segmentation rely on deep convolutional neural networks trained on fully annotated datasets, that have been shown to be notoriously expensive to collect, both in terms of time and money. To remedy…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Anton Obukhov , Stamatios Georgoulis , Dengxin Dai , Luc Van Gool

Sequence-to-sequence automatic speech recognition (ASR) models require large quantities of data to attain high performance. For this reason, there has been a recent surge in interest for unsupervised and semi-supervised training in such…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-21 Murali Karthick Baskar , Shinji Watanabe , Ramon Astudillo , Takaaki Hori , Lukáš Burget , Jan Černocký

Semi-supervised semantic segmentation aims to learn from a small amount of labeled data and plenty of unlabeled ones for the segmentation task. The most common approach is to generate pseudo-labels for unlabeled images to augment the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Rui Chen , Tao Chen , Qiong Wang , Yazhou Yao

This paper studies semi-supervised learning of semantic segmentation, which assumes that only a small portion of training images are labeled and the others remain unlabeled. The unlabeled images are usually assigned pseudo labels to be used…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Donghyeon Kwon , Suha Kwak

Despite the remarkable progress in synthetic aperture radar automatic target recognition (SAR ATR), recent efforts have concentrated on detecting and classifying a specific category, e.g., vehicles, ships, airplanes, or buildings. One of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Weijie Li , Wei Yang , Yuenan Hou , Li Liu , Yongxiang Liu , Xiang Li

While deep learning based end-to-end automatic speech recognition (ASR) systems have greatly simplified modeling pipelines, they suffer from the data sparsity issue. In this work, we propose a self-training method with an end-to-end system…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-31 Yang Chen , Weiran Wang , Chao Wang

Synthetic Aperture Radar (SAR) images are prone to be contaminated by noise, which makes it very difficult to perform target recognition in SAR images. Inspired by great success of very deep convolutional neural networks (CNNs), this paper…

Computer Vision and Pattern Recognition · Computer Science 2021-11-01 Moussa Amrani , Abdelatif Bey , Abdenour Amamra

Automated brain lesion segmentation provides valuable information for the analysis and intervention of patients. In particular, methods based on convolutional neural networks (CNNs) have achieved state-of-the-art segmentation performance.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Wenhui Cui , Yanlin Liu , Yuxing Li , Menghao Guo , Yiming Li , Xiuli Li , Tianle Wang , Xiangzhu Zeng , Chuyang Ye

Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR) is the key technique for remote sensing image recognition. The state-of-the-art works exploit the deep convolutional neural networks (CNNs) for SAR ATR, leading to high…

Computer Vision and Pattern Recognition · Computer Science 2023-05-15 Bingyi Zhang , Sasindu Wijeratne , Rajgopal Kannan , Viktor Prasanna , Carl Busart

Synthetic Aperture Radar has been extensively used in numerous fields and can gather a wealth of information about the area of interest. This large scene data intensive technology puts a high value on automatic target recognition which can…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Guibin Zhao , Pengfei Li , Zhibo Zhang , Fusen Guo , Xueting Huang , Wei Xu , Jinyin Wang , Jianlong Chen

In the domain of air traffic control (ATC) systems, efforts to train a practical automatic speech recognition (ASR) model always faces the problem of small training samples since the collection and annotation of speech samples are expert-…

Sound · Computer Science 2021-02-17 Yi Lin , Qin Li , Bo Yang , Zhen Yan , Huachun Tan , Zhengmao Chen