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We present a novel method for classification of Synthetic Aperture Radar (SAR) data by combining ideas from graph-based learning and neural network methods within an active learning framework. Graph-based methods in machine learning are…

机器学习 · 计算机科学 2022-04-04 Kevin Miller , John Mauro , Jason Setiadi , Xoaquin Baca , Zhan Shi , Jeff Calder , Andrea L. Bertozzi

Neural network-based anomaly detection methods have shown to achieve high performance. However, they require a large amount of training data for each task. We propose a neural network-based meta-learning method for supervised anomaly…

机器学习 · 统计学 2021-03-02 Tomoharu Iwata , Atsutoshi Kumagai

It is a challenging problem to detect and recognize targets on complex large-scene Synthetic Aperture Radar (SAR) images. Recently developed deep learning algorithms can automatically learn the intrinsic features of SAR images, but still…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Siyan Li , Yue Xiao , Yuhang Zhang , Lei Chu , Robert C. Qiu

In open-set recognition, existing methods generally learn statically fixed decision boundaries using known classes to reject unknown classes. Though they have achieved promising results, such decision boundaries are evidently insufficient…

机器学习 · 计算机科学 2024-05-06 Haifeng Yang , Chuanxing Geng , Pong C. Yuen , Songcan Chen

Active learning is a promising alternative to alleviate the issue of high annotation cost in the computer vision tasks by consciously selecting more informative samples to label. Active learning for object detection is more challenging and…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Jiaxi Wu , Jiaxin Chen , Di Huang

Synthetic aperture radar automatic target recognition (SAR ATR) is of considerable importance in marine navigation and disaster monitoring. However, the coherent speckle noise inherent in SAR imagery often obscures salient target features,…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Yansong Lin , Zihan Cheng , Jielei Wang , Guoming Lua , Zongyong Cui

We learn, in an unsupervised way, an embedding from sequences of radar images that is suitable for solving the place recognition problem with complex radar data. Our method is based on invariant instance feature learning but is tailored for…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Matthew Gadd , Daniele De Martini , Paul Newman

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…

计算机视觉与模式识别 · 计算机科学 2025-01-23 Weijie Li , Wei Yang , Yuenan Hou , Li Liu , Yongxiang Liu , Xiang Li

Current state-of-the-art Wildlife classification models are trained under the closed world setting. When exposed to unknown classes, they remain overconfident in their predictions. Open-set Recognition (OSR) aims to classify known classes…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Jiahao Huo , Mufhumudzi Muthivhi , Terence L. van Zyl , Fredrik Gustafsson

Land cover classification of satellite imagery is an important step toward analyzing the Earth's surface. Existing models assume a closed-set setting where both the training and testing classes belong to the same label set. However, due to…

计算机视觉与模式识别 · 计算机科学 2020-07-22 Razieh Kaviani Baghbaderani , Ying Qu , Hairong Qi , Craig Stutts

This paper proposes inverse feature learning as a novel supervised feature learning technique that learns a set of high-level features for classification based on an error representation approach. The key contribution of this method is to…

机器学习 · 计算机科学 2020-03-10 Behzad Ghazanfari , Fatemeh Afghah , MohammadTaghi Hajiaghayi

Open-set recognition and adversarial defense study two key aspects of deep learning that are vital for real-world deployment. The objective of open-set recognition is to identify samples from open-set classes during testing, while…

计算机视觉与模式识别 · 计算机科学 2020-09-03 Rui Shao , Pramuditha Perera , Pong C. Yuen , Vishal M. Patel

Few-Shot Open-Set Recognition (FSOSR) targets a critical real-world challenge, aiming to categorize inputs into known categories, termed closed-set classes, while identifying open-set inputs that fall outside these classes. Although…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Byeonggeun Kim , Juntae Lee , Kyuhong Shim , Simyung Chang

In the realm of automated robotic surgery and computer-assisted interventions, understanding robotic surgical activities stands paramount. Existing algorithms dedicated to surgical activity recognition predominantly cater to pre-defined…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Long Bai , Guankun Wang , Jie Wang , Xiaoxiao Yang , Huxin Gao , Xin Liang , An Wang , Mobarakol Islam , Hongliang Ren

3D recognition is the foundation of 3D deep learning in many emerging fields, such as autonomous driving and robotics.Existing 3D methods mainly focus on the recognition of a fixed set of known classes and neglect possible unknown classes…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Weng Tingyu , Xiao Jun , Jiang Haiyong

Synthetic Aperture Radar (SAR) imagery has diverse applications in land and marine surveillance. Unlike electro-optical (EO) systems, these systems are not affected by weather conditions and can be used in the day and night times. With the…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Abu Md Niamul Taufique , Navya Nagananda , Andreas Savakis

In this paper, we study the problem of training large-scale face identification model with imbalanced training data. This problem naturally exists in many real scenarios including large-scale celebrity recognition, movie actor annotation,…

计算机视觉与模式识别 · 计算机科学 2018-03-19 Yandong Guo , Lei Zhang

Gesture recognition is a foundational task in human-machine interaction (HMI). While there has been significant progress in gesture recognition based on surface electromyography (sEMG), accurate recognition of predefined gestures only…

计算机视觉与模式识别 · 计算机科学 2023-12-06 Chen Liu , Can Han , Chengfeng Zhou , Crystal Cai , Suncheng Xiang , Hualiang Ni , Dahong Qian

Recently, computer-aided design models and electromagnetic simulations have been used to augment synthetic aperture radar (SAR) data for deep learning. However, an automatic target recognition (ATR) model struggles with domain shift when…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Oh-Tae Jang , Min-Jun Kim , Sung-Ho Kim , Hee-Sub Shin , Kyung-Tae Kim

This thesis makes considerable contributions to the realm of machine learning, specifically in the context of open-world scenarios where systems face previously unseen data and contexts. Traditional machine learning models are usually…

机器学习 · 计算机科学 2023-10-11 Yiyou Sun