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Few-shot image classification learns to recognize new categories from limited labelled data. Metric learning based approaches have been widely investigated, where a query sample is classified by finding the nearest prototype from the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-04 Zhizheng Zhang , Cuiling Lan , Wenjun Zeng , Zhibo Chen , Shih-Fu Chang

Current few-shot action recognition involves two primary sources of information for classification:(1) intra-video information, determined by frame content within a single video clip, and (2) inter-video information, measured by…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Huabin Liu , Weiyao Lin , Tieyuan Chen , Yuxi Li , Shuyuan Li , John See

A primary challenge faced in few-shot action recognition is inadequate video data for training. To address this issue, current methods in this field mainly focus on devising algorithms at the feature level while little attention is paid to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Huabin Liu , Weixian Lv , John See , Weiyao Lin

Humans possess remarkable ability to accurately classify new, unseen images after being exposed to only a few examples. Such ability stems from their capacity to identify common features shared between new and previously seen images while…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Weihao Jiang , Chang Liu , Kun He

Few-shot learning aims to recognize new categories using very few labeled samples. Although few-shot learning has witnessed promising development in recent years, most existing methods adopt an average operation to calculate prototypes,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Minglei Yuan , Wenhai Wang , Tao Wang , Chunhao Cai , Qian Xu , Tong Lu

Effective image classification hinges on discerning relevant features from both foreground and background elements, with the foreground typically holding the critical information. While humans adeptly classify images with limited exposure,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Weihao Jiang , Haoyang Cui , Kun He

Few-shot classification aims to adapt classifiers to novel classes with a few training samples. However, the insufficiency of training data may cause a biased estimation of feature distribution in a certain class. To alleviate this problem,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Jing Xu , Xinglin Pan , Xu Luo , Wenjie Pei , Zenglin Xu

Few-Shot Action Recognition (FSAR) aims to train a model with only a few labeled video instances. A key challenge in FSAR is handling divergent narrative trajectories for precise video matching. While the frame- and tuple-level alignment…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 SuBeen Lee , WonJun Moon , Hyun Seok Seong , Jae-Pil Heo

Few-shot classification is a challenging task which aims to formulate the ability of humans to learn concepts from limited prior data and has drawn considerable attention in machine learning. Recent progress in few-shot classification has…

Machine Learning · Computer Science 2020-04-14 Meiyu Huang , Xueshuang Xiang , Yao Xu

Class prototype construction and matching are core aspects of few-shot action recognition. Previous methods mainly focus on designing spatiotemporal relation modeling modules or complex temporal alignment algorithms. Despite the promising…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Jiazheng Xing , Mengmeng Wang , Yudi Ruan , Bofan Chen , Yaowei Guo , Boyu Mu , Guang Dai , Jingdong Wang , Yong Liu

Few-Shot Video Object Segmentation (FSVOS) aims to segment objects in a query video with the same category defined by a few annotated support images. However, this task was seldom explored. In this work, based on IPMT, a state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Nian Liu , Kepan Nan , Wangbo Zhao , Yuanwei Liu , Xiwen Yao , Salman Khan , Hisham Cholakkal , Rao Muhammad Anwer , Junwei Han , Fahad Shahbaz Khan

Few-shot learning is often motivated by the ability of humans to learn new tasks from few examples. However, standard few-shot classification benchmarks assume that the representation is learned on a limited amount of base class data,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Yann Lifchitz , Yannis Avrithis , Sylvaine Picard

In this paper, we propose to learn temporal embeddings of video frames for complex video analysis. Large quantities of unlabeled video data can be easily obtained from the Internet. These videos possess the implicit weak label that they are…

Computer Vision and Pattern Recognition · Computer Science 2015-05-05 Vignesh Ramanathan , Kevin Tang , Greg Mori , Li Fei-Fei

The goal of few-shot learning is to learn a model that can recognize novel classes based on one or few training data. It is challenging mainly due to two aspects: (1) it lacks good feature representation of novel classes; (2) a few of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Canyu Le , Zhonggui Chen , Xihan Wei , Biao Wang , Lei Zhang

Few-shot action recognition, i.e. recognizing new action classes given only a few examples, benefits from incorporating temporal information. Prior work either encodes such information in the representation itself and learns classifiers at…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Juliette Bertrand , Yannis Kalantidis , Giorgos Tolias

We address the problem of anomaly detection in videos. The goal is to identify unusual behaviours automatically by learning exclusively from normal videos. Most existing approaches are usually data-hungry and have limited generalization…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Yiwei Lu , Frank Yu , Mahesh Kumar Krishna Reddy , Yang Wang

Few-shot object detection, learning to adapt to the novel classes with a few labeled data, is an imperative and long-lasting problem due to the inherent long-tail distribution of real-world data and the urgent demands to cut costs of data…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Leng Jiaxu , Chen Taiyue , Gao Xinbo , Yu Yongtao , Wang Ye , Gao Feng , Wang Yue

Learning to localize actions in long, cluttered, and untrimmed videos is a hard task, that in the literature has typically been addressed assuming the availability of large amounts of annotated training samples for each class -- either in a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Ting-Ting Xie , Christos Tzelepis , Fan Fu , Ioannis Patras

Few-shot classification aims to carry out classification given only few labeled examples for the categories of interest. Though several approaches have been proposed, most existing few-shot learning (FSL) models assume that base and novel…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Yuan-Chia Cheng , Ci-Siang Lin , Fu-En Yang , Yu-Chiang Frank Wang

This paper tackles the problem of few-shot learning, which aims to learn new visual concepts from a few examples. A common problem setting in few-shot classification assumes random sampling strategy in acquiring data labels, which is…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Shipeng Yan , Songyang Zhang , Xuming He