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The open set recognition (OSR) problem aims to identify test samples from novel semantic classes that are not part of the training classes, a task that is crucial in many practical scenarios. However, the existing OSR methods use a constant…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Amit Kumar Kundu , Vaishnavi S Patil , Joseph Jaja

Real world data often have a long-tailed and open-ended distribution. A practical recognition system must classify among majority and minority classes, generalize from a few known instances, and acknowledge novelty upon a never seen…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Ziwei Liu , Zhongqi Miao , Xiaohang Zhan , Jiayun Wang , Boqing Gong , Stella X. Yu

In this paper, we proposed to investigate unsupervised anomaly detection in Synthetic Aperture Radar (SAR) images. Our approach considers anomalies as abnormal patterns that deviate from their surroundings but without any prior knowledge of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Max Muzeau , Chengfang Ren , Sébastien Angelliaume , Mihai Datcu , Jean-Philippe Ovarlez

Open-set recognition (OSR), the identification of novel categories, can be a critical component when deploying classification models in real-world applications. Recent work has shown that familiarity-based scoring rules such as the Maximum…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Philip Enevoldsen , Christian Gundersen , Nico Lang , Serge Belongie , Christian Igel

This paper presents a brief examination of Automatic Target Recognition (ATR) technology within ground-based radar systems. It offers a lucid comprehension of the ATR concept, delves into its historical milestones, and categorizes ATR…

Signal Processing · Electrical Eng. & Systems 2023-10-24 Jiangkun Gong , Jun Yan , Deyong Kong , Deren Li

The problem of detecting a novel class at run time is known as Open Set Detection & is important for various real-world applications like medical application, autonomous driving, etc. Open Set Detection within context of deep learning…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Risheek Garrepalli

Current mainstream SAR image object detection methods still lack robustness when dealing with unknown objects in open environments. Open-set detection aims to enable detectors trained on a closed set to detect all known objects and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Xiayang Xiao , Zhuoxuan Li , Haipeng Wang

In this paper, we address the problem of class-generalizable anomaly detection, where the objective is to develop a unified model by focusing our learning on the available normal data and a small amount of anomaly data in order to detect…

Machine Learning · Computer Science 2026-01-28 Padmaksha Roy , Lamine Mili , Almuatazbellah Boker

One of the ultimate goals of representation learning is to achieve compactness within a class and well-separability between classes. Many outstanding metric-based and prototype-based methods following the Expectation-Maximization paradigm,…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Yanqi Ge , Qiang Nie , Ye Huang , Yong Liu , Chengjie Wang , Feng Zheng , Wen Li , Lixin Duan

Deep metric learning aims to learn a deep embedding that can capture the semantic similarity of data points. Given the availability of massive training samples, deep metric learning is known to suffer from slow convergence due to a large…

Machine Learning · Computer Science 2019-12-05 Xinshao Wang , Yang Hua , Elyor Kodirov , Guosheng Hu , Neil M. Robertson

Few-shot classification aims to recognize unseen classes when presented with only a small number of samples. We consider the problem of multi-domain few-shot image classification, where unseen classes and examples come from diverse data…

Machine Learning · Computer Science 2020-09-04 Lu Liu , William Hamilton , Guodong Long , Jing Jiang , Hugo Larochelle

Solving real-world manipulation tasks requires robots to have a repertoire of skills applicable to a wide range of circumstances. When using learning-based methods to acquire such skills, the key challenge is to obtain training data that…

Robotics · Computer Science 2023-04-19 Kuan Fang , Toki Migimatsu , Ajay Mandlekar , Li Fei-Fei , Jeannette Bohg

Deep learning methods based synthetic aperture radar (SAR) image target recognition tasks have been widely studied currently. The existing deep methods are insufficient to perceive and mine the scattering information of SAR images,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Chenxi Zhao , Daochang Wang , Siqian Zhang , Gangyao Kuang

Object detection is an important computer vision task with plenty of real-world applications; therefore, how to enhance its robustness against adversarial attacks has emerged as a crucial issue. However, most of the previous defense methods…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Pin-Chun Chen , Bo-Han Kung , Jun-Cheng Chen

Current Zero-Shot Learning (ZSL) approaches are restricted to recognition of a single dominant unseen object category in a test image. We hypothesize that this setting is ill-suited for real-world applications where unseen objects appear…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Shafin Rahman , Salman Khan , Fatih Porikli

High-resolution imagery plays a critical role in improving the performance of visual recognition tasks such as classification, detection, and segmentation. In many domains, including remote sensing and surveillance, low-resolution images…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Ch Muhammad Awais , Marco Reggiannini , Davide Moroni , Oktay Karakus

This paper proposes rollable latent space (RLS) for an azimuth invariant synthetic aperture radar (SAR) target recognition. Scarce labeled data and limited viewing direction are critical issues in SAR target recognition.The RLS is a…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Kazutoshi Sagi , Takahiro Toizumi , Yuzo Senda

Automatic Modulation Recognition (AMR) is a crucial technology in the domains of radar and communications. Traditional AMR approaches assume a closed-set scenario, where unknown samples are forcibly misclassified into known classes, leading…

Signal Processing · Electrical Eng. & Systems 2024-04-16 Ziwei Zhang , Mengtao Zhu , Jiabin Liu , Yunjie Li , Shafei Wang

In most recent years, zero-shot recognition (ZSR) has gained increasing attention in machine learning and image processing fields. It aims at recognizing unseen class instances with knowledge transferred from seen classes. This is typically…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Jingcai Guo , Song Guo

Zero-shot learning (ZSL) which aims to recognize unseen object classes by only training on seen object classes, has increasingly been of great interest in Machine Learning, and has registered with some successes. Most existing ZSL methods…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Wen Tang , Ashkan Panahi , Hamid Krim
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