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Unsupervised approaches to learning in neural networks are of substantial interest for furthering artificial intelligence, both because they would enable the training of networks without the need for large numbers of expensive annotations,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Chengxu Zhuang , Alex Lin Zhai , Daniel Yamins

Traditional visual place recognition (VPR), usually using standard cameras, is easy to fail due to glare or high-speed motion. By contrast, event cameras have the advantages of low latency, high temporal resolution, and high dynamic range,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Kuanxu Hou , Delei Kong , Junjie Jiang , Hao Zhuang , Xinjie Huang , Zheng Fang

Visual anomaly detection in real-world industrial settings faces two major limitations. First, most existing methods are trained on purely normal data or on unlabeled datasets assumed to be predominantly normal, presuming the absence of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Anindya Sundar Das , Monowar Bhuyan

Uniform and variable environments still remain a challenge for stable visual localization and mapping in mobile robot navigation. One of the possible approaches suitable for such environments is appearance-based teach-and-repeat navigation,…

Robotics · Computer Science 2025-03-18 Václav Truhlařík , Tomáš Pivoňka , Michal Kasarda , Libor Přeučil

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

Multi-view clustering has shown to be an effective method for analyzing underlying patterns in multi-view data. The performance of clustering can be improved by learning the consistency and complementarity between multi-view features,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-20 Shihao Dong , Yuhui Zheng , Huiying Xu , Xinzhong Zhu

Subspace clustering is to find underlying low-dimensional subspaces and cluster the data points correctly. In this paper, we propose a novel multi-view subspace clustering method. Most existing methods suffer from two critical issues.…

Artificial Intelligence · Computer Science 2022-05-24 Mengyuan Zhang , Kai Liu

In Visual Place Recognition (VPR) the pose of a query image is estimated by comparing the image to a map of reference images with known reference poses. As is typical for image retrieval problems, a feature extractor maps the query and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Mubariz Zaffar , Liangliang Nan , Julian F. P. Kooij

Robust geo-localization in changing environmental conditions is critical for long-term aerial autonomy. While visual place recognition (VPR) models perform well when airborne views match the training domain, adapting them to shifting…

Robotics · Computer Science 2026-04-13 Xingyu Shao , Zhiqiang Yan , Liangzheng Sun , Mengfan He , Chao Chen , Jinhui Zhang , Chunyu Li , Ziyang Meng

This paper addresses the problem of discovering the objects present in a collection of images without any supervision. We build on the optimization approach of Vo et al. (CVPR'19) with several key novelties: (1) We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Huy V. Vo , Patrick Pérez , Jean Ponce

Self-supervised cross-modal super-resolution (SR) can overcome the difficulty of acquiring paired training data, but is challenging because only low-resolution (LR) source and high-resolution (HR) guide images from different modalities are…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Xiaoyu Dong , Naoto Yokoya , Longguang Wang , Tatsumi Uezato

In this study, we address the problem of supervised change detection for robotic map learning applications, in which the aim is to train a place-specific change classifier (e.g., support vector machine (SVM)) to predict changes from a…

Computer Vision and Pattern Recognition · Computer Science 2017-06-08 Fei Xiaoxiao , Tanaka Kanji

Graph clustering plays a crucial role in graph representation learning but often faces challenges in achieving feature-space diversity. While Deep Modularity Networks (DMoN) leverage modularity maximization and collapse regularization to…

Machine Learning · Computer Science 2025-11-04 Yasmin Salehi , Dennis Giannacopoulos

Visual place recognition (VPR) enables autonomous systems to localize themselves within an environment using image information. While Convolution Neural Networks (CNNs) currently dominate state-of-the-art VPR performance, their high…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Bruno Arcanjo , Bruno Ferrarini , Michael Milford , Klaus D. McDonald-Maier , Shoaib Ehsan

Multi-view clustering can explore common semantics from multiple views and has received increasing attention in recent years. However, current methods focus on learning consistency in representation, neglecting the contribution of each…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Bo Li , Jing Yun

Visual localization and mapping is the key technology underlying the majority of mixed reality and robotics systems. Most state-of-the-art approaches rely on local features to establish correspondences between images. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Mihai Dusmanu , Ondrej Miksik , Johannes L. Schönberger , Marc Pollefeys

Subspace clustering methods based on data self-expression have become very popular for learning from data that lie in a union of low-dimensional linear subspaces. However, the applicability of subspace clustering has been limited because…

Computer Vision and Pattern Recognition · Computer Science 2019-05-02 Junjian Zhang , Chun-Guang Li , Chong You , Xianbiao Qi , Honggang Zhang , Jun Guo , Zhouchen Lin

Fine-grained image classification remains challenging due to the large intra-class variance and small inter-class variance. Since the subtle visual differences are only in local regions of discriminative parts among subcategories, part…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Runsheng Zhang , jian zhang , Yaping Huang , Qi Zou

Visual Place Recognition has been the subject of many endeavours utilizing different ensemble approaches to improve VPR performance. Ideas like multi-process fusion, Fly-Inspired Voting Units, SwitchHit or Switch-Fuse involve combining…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Maria Waheed , Michael Milford , Xiaojun Zhai , Maria Fasli , Klaus McDonald-Maier , Shoaib Ehsan

Self-supervised representation learning approaches have recently surpassed their supervised learning counterparts on downstream tasks like object detection and image classification. Somewhat mysteriously the recent gains in performance come…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Senthil Purushwalkam , Abhinav Gupta