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We present a novel method for few-shot video classification, which performs appearance and temporal alignments. In particular, given a pair of query and support videos, we conduct appearance alignment via frame-level feature matching to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Khoi D. Nguyen , Quoc-Huy Tran , Khoi Nguyen , Binh-Son Hua , Rang Nguyen

Deep learning has achieved great success in video recognition, yet still struggles to recognize novel actions when faced with only a few examples. To tackle this challenge, few-shot action recognition methods have been proposed to transfer…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Yilun Zhang , Yuqian Fu , Xingjun Ma , Lizhe Qi , Jingjing Chen , Zuxuan Wu , Yu-Gang Jiang

Few-shot video classification aims to learn new video categories with only a few labeled examples, alleviating the burden of costly annotation in real-world applications. However, it is particularly challenging to learn a class-invariant…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Songyang Zhang , Jiale Zhou , Xuming He

Existing temporal action localization (TAL) works rely on a large number of training videos with exhaustive segment-level annotation, preventing them from scaling to new classes. As a solution to this problem, few-shot TAL (FS-TAL) aims to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Sauradip Nag , Xiatian Zhu , Tao Xiang

Few-shot learning aims to recognize instances from novel classes with few labeled samples, which has great value in research and application. Although there has been a lot of work in this area recently, most of the existing work is based on…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Congqi Cao , Yajuan Li , Qinyi Lv , Peng Wang , Yanning Zhang

Few-shot action recognition aims to recognize novel action classes using only a small number of labeled training samples. In this work, we propose a novel approach that first summarizes each video into compound prototypes consisting of a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Yifei Huang , Lijin Yang , Yoichi Sato

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

Few-shot action recognition (FSAR) aims to recognize novel action categories with few exemplars. Existing methods typically learn frame-level representations for each video by designing inter-frame temporal modeling strategies or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Hongyu Qu , Ling Xing , Jiachao Zhang , Rui Yan , Yazhou Yao , Xiangbo Shu

Recently, few-shot video classification has received an increasing interest. Current approaches mostly focus on effectively exploiting the temporal dimension in videos to improve learning under low data regimes. However, most works have…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Andrés Villa , Juan-Manuel Perez-Rua , Victor Escorcia , Vladimir Araujo , Juan Carlos Niebles , Alvaro Soto

We propose a simple yet effective approach for few-shot action recognition, emphasizing the disentanglement of motion and appearance representations. By harnessing recent progress in tracking, specifically point trajectories and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Pulkit Kumar , Namitha Padmanabhan , Luke Luo , Sai Saketh Rambhatla , Abhinav Shrivastava

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

In this paper we propose a novel Temporal Attentive Relation Network (TARN) for the problems of few-shot and zero-shot action recognition. At the heart of our network is a meta-learning approach that learns to compare representations of…

Computer Vision and Pattern Recognition · Computer Science 2019-07-23 Mina Bishay , Georgios Zoumpourlis , Ioannis Patras

In the research field of few-shot learning, the main difference between image-based and video-based is the additional temporal dimension. In recent years, some works have used the Transformer to deal with frames, then get the attention…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Fei Guo , Li Zhu , YiWang Wang , Jing Sun

The goal of few-shot video classification is to learn a classification model with good generalization ability when trained with only a few labeled videos. However, it is difficult to learn discriminative feature representations for videos…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Fei Pan , Chunlei Xu , Jie Guo , Yanwen Guo

Action detection is an essential and challenging task, especially for densely labelled datasets of untrimmed videos. The temporal relation is complex in those datasets, including challenges like composite action, and co-occurring action.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Rui Dai , Srijan Das , Kumara Kahatapitiya , Michael S. Ryoo , Francois Bremond

Efficient video action recognition remains a challenging problem. One large model after another takes the place of the state-of-the-art on the Kinetics dataset, but real-world efficiency evaluations are often lacking. In this work, we fill…

Computer Vision and Pattern Recognition · Computer Science 2021-11-19 Raivo Koot , Haiping Lu

In this paper, we consider the problem of temporal action localization under low-shot (zero-shot & few-shot) scenario, with the goal of detecting and classifying the action instances from arbitrary categories within some untrimmed videos,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Chen Ju , Zeqian Li , Peisen Zhao , Ya Zhang , Xiaopeng Zhang , Qi Tian , Yanfeng Wang , Weidi Xie

Recently action recognition has received more and more attention for its comprehensive and practical applications in intelligent surveillance and human-computer interaction. However, few-shot action recognition has not been well explored…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Changzhen Li , Jie Zhang , Shuzhe Wu , Xin Jin , Shiguang Shan

Many few-shot learning models focus on recognising images. In contrast, we tackle a challenging task of few-shot action recognition from videos. We build on a C3D encoder for spatio-temporal video blocks to capture short-range action…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Hongguang Zhang , Li Zhang , Xiaojuan Qi , Hongdong Li , Philip H. S. Torr , Piotr Koniusz

Classification of new class entities requires collecting and annotating hundreds or thousands of samples that is often prohibitively costly. Few-shot learning suggests learning to classify new classes using just a few examples. Only a small…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Rami Ben-Ari , Mor Shpigel , Ophir Azulai , Udi Barzelay , Daniel Rotman
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