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Deep metric learning algorithms have been utilized to learn discriminative and generalizable models which are effective for classifying unseen classes. In this paper, a novel noise tolerant deep metric learning algorithm is proposed. The…

Machine Learning · Computer Science 2019-04-09 Soumyadeep Ghosh , Richa Singh , Mayank Vatsa

In open set recognition (OSR), almost all existing methods are designed specially for recognizing individual instances, even these instances are collectively coming in batch. Recognizers in decision either reject or categorize them to some…

Machine Learning · Computer Science 2020-03-24 Chuanxing Geng , Songcan Chen

Deep learning in remote sensing has become an international hype, but it is mostly limited to the evaluation of optical data. Although deep learning has been introduced in Synthetic Aperture Radar (SAR) data processing, despite successful…

Image and Video Processing · Electrical Eng. & Systems 2024-10-30 Xiao Xiang Zhu , Sina Montazeri , Mohsin Ali , Yuansheng Hua , Yuanyuan Wang , Lichao Mou , Yilei Shi , Feng Xu , Richard Bamler

Open-Set Domain Adaptation (OSDA) assumes that a target domain contains unknown classes, which are not discovered in a source domain. Existing domain adversarial learning methods are not suitable for OSDA because distribution matching with…

Machine Learning · Computer Science 2022-10-25 JoonHo Jang , Byeonghu Na , DongHyeok Shin , Mingi Ji , Kyungwoo Song , Il-Chul Moon

Classifying patterns of known classes and rejecting ambiguous and novel (also called as out-of-distribution (OOD)) inputs are involved in open world pattern recognition. Deep neural network models usually excel in closed-set classification…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Zhen Cheng , Xu-Yao Zhang , Cheng-Lin Liu

Object detection has recently seen an interesting trend in terms of the most innovative research work, this task being of particular importance in the field of remote sensing, given the consistency of these images in terms of geographical…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Anasse Boutayeb , Iyad Lahsen-cherif , Ahmed El Khadimi

We present a novel counterfactual framework for both Zero-Shot Learning (ZSL) and Open-Set Recognition (OSR), whose common challenge is generalizing to the unseen-classes by only training on the seen-classes. Our idea stems from the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Zhongqi Yue , Tan Wang , Hanwang Zhang , Qianru Sun , Xian-Sheng Hua

Unknown Object Detection (UOD) aims to identify objects of unseen categories, differing from the traditional detection paradigm limited by the closed-world assumption. A key component of UOD is learning a generalized representation, i.e.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Haomiao Liu , Hao Xu , Chuhuai Yue , Bo Ma

Generalized Zero-Shot Learning (GZSL) and Open-Set Recognition (OSR) are two mainstream settings that greatly extend conventional visual object recognition. However, the limitations of their problem settings are not negligible. The novel…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Zhaonan Li , Hongfu Liu

Multi-class semantic segmentation remains a cornerstone challenge in computer vision. Yet, dataset creation remains excessively demanding in time and effort, especially for specialized domains. Active Learning (AL) mitigates this challenge…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Fei Wu , Pablo Marquez-Neila , Hedyeh Rafi-Tarii , Raphael Sznitman

Zero-shot recognition (ZSR) deals with the problem of predicting class labels for target domain instances based on source domain side information (e.g. attributes) of unseen classes. We formulate ZSR as a binary prediction problem. Our…

Computer Vision and Pattern Recognition · Computer Science 2016-08-22 Ziming Zhang , Venkatesh Saligrama

The absence of publicly available, large-scale, high-quality datasets for Synthetic Aperture Radar Automatic Target Recognition (SAR ATR) has significantly hindered the application of rapidly advancing deep learning techniques, which hold…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Yongxiang Liu , Weijie Li , Li Liu , Jie Zhou , Bowen Peng , Yafei Song , Xuying Xiong , Wei Yang , Tianpeng Liu , Zhen Liu , Xiang Li

Automatic target recognition (ATR) plays a critical role in tasks such as navigation and surveillance, where safety and accuracy are paramount. In extreme use cases, such as military applications, these factors are often challenged due to…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Yasiru Ranasinghe , Vibashan VS , James Uplinger , Celso De Melo , Vishal M. Patel

Synthetic aperture radar (SAR) imagery exhibits intrinsic information sparsity due to its unique electromagnetic scattering mechanism. Despite the widespread adoption of deep neural network (DNN)-based SAR automatic target recognition…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Yiming Zhang , Weibo Qin , Yuntian Liu , Feng Wang

This paper discusses the challenges of detecting and categorizing small drones with radar automatic target recognition (ATR) technology. The authors suggest integrating ATR capabilities into drone detection radar systems to improve…

Signal Processing · Electrical Eng. & Systems 2023-07-21 Jiangkun Gong , Jun Yan , Deyong Kong , Deren Li

Deep learning technologies have significantly improved performance in the field of synthetic aperture radar (SAR) image target recognition compared to traditional methods. However, the inherent ``black box" property of deep learning models…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Zhuoxuan Li , Xu Zhang , Shumeng Yu , Haipeng Wang

In robot sensing scenarios, instead of passively utilizing human captured views, an agent should be able to actively choose informative viewpoints of a 3D object as discriminative evidence to boost the recognition accuracy. This task is…

Robotics · Computer Science 2021-03-09 Wei Wei , Haonan Yu , Haichao Zhang , Wei Xu , Ying Wu

We address the problem of scene classification from optical remote sensing (RS) images based on the paradigm of hierarchical metric learning. Ideally, supervised metric learning strategies learn a projection from a set of training data…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Akashdeep Goel , Biplab Banerjee , Aleksandra Pizurica

Real world data often exhibits a long-tailed and open-ended (with unseen classes) distribution. A practical recognition system must balance between majority (head) and minority (tail) classes, generalize across the distribution, and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Ziwei Liu , Zhongqi Miao , Xiaohang Zhan , Jiayun Wang , Boqing Gong , Stella X. Yu

Set-valued classification, a new classification paradigm that aims to identify all the plausible classes that an observation belongs to, can be obtained by learning the acceptance regions for all classes. Many existing set-valued…

Machine Learning · Statistics 2022-09-22 Zhou Wang , Xingye Qiao