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Egocentric action recognition is gaining significant attention in the field of human action recognition. In this paper, we address data scarcity issue in egocentric action recognition from a compositional generalization perspective. To…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Haoran Wang , Qinghua Cheng , Baosheng Yu , Yibing Zhan , Dapeng Tao , Liang Ding , Haibin Ling

In this paper, we propose an approach to improve few-shot classification performance using a composite rotation based auxiliary task. Few-shot classification methods aim to produce neural networks that perform well for classes with a large…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Pratik Mazumder , Pravendra Singh , Vinay P. Namboodiri

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

We propose a method for human action recognition, one that can localize the spatiotemporal regions that `define' the actions. This is a challenging task due to the subtlety of human actions in video and the co-occurrence of contextual…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Yang Wang , Vinh Tran , Gedas Bertasius , Lorenzo Torresani , Minh Hoai

Most of the current action recognition algorithms are based on deep networks which stack multiple convolutional, pooling and fully connected layers. While convolutional and fully connected operations have been widely studied in the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Ahmed Mazari , Hichem Sahbi

Fine-grained human action recognition is a core research topic in computer vision. Inspired by the recently proposed hierarchy representation of fine-grained actions in FineGym and SlowFast network for action recognition, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Mei Chee Leong , Hui Li Tan , Haosong Zhang , Liyuan Li , Feng Lin , Joo Hwee Lim

Few-shot learning (FSL) aims at recognizing novel classes given only few training samples, which still remains a great challenge for deep learning. However, humans can easily recognize novel classes with only few samples. A key component of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-23 Yixiong Zou , Shanghang Zhang , Ke Chen , Yonghong Tian , Yaowei Wang , José M. F. Moura

With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams. Recognising actions and detecting action transitions…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Harshala Gammulle , David Ahmedt-Aristizabal , Simon Denman , Lachlan Tychsen-Smith , Lars Petersson , Clinton Fookes

The application of activity recognition in the "AI + Education" field is gaining increasing attention. However, current work mainly focuses on the recognition of activities in manually captured videos and a limited number of activity types,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Yilei Qian , Kanglei Geng , Kailong Chen , Shaoxu Cheng , Linfeng Xu , Hongliang Li , Fanman Meng , Qingbo Wu

Training a neural network model that can quickly adapt to a new task is highly desirable yet challenging for few-shot learning problems. Recent few-shot learning methods mostly concentrate on developing various meta-learning strategies from…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Zihang Jiang , Bingyi Kang , Kuangqi Zhou , Jiashi Feng

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

The current paper proposes a novel neural network model for recognizing visually perceived human actions. The proposed multiple spatio-temporal scales recurrent neural network (MSTRNN) model is derived by introducing multiple timescale…

Computer Vision and Pattern Recognition · Computer Science 2017-02-23 Haanvid Lee , Minju Jung , Jun Tani

In this paper, we report a hierarchical deep learning model for classification of complex human activities using motion sensors. In contrast to traditional Human Activity Recognition (HAR) models used for event-based activity recognition,…

Machine Learning · Computer Science 2022-07-19 Eric Rosen , Doruk Senkal

Hierarchies allow feature sharing between objects at multiple levels of representation, can code exponential variability in a very compact way and enable fast inference. This makes them potentially suitable for learning and recognizing a…

Computer Vision and Pattern Recognition · Computer Science 2014-08-26 Sanja Fidler , Marko Boben , Ales Leonardis

Event perception tasks such as recognizing and localizing actions in streaming videos are essential for scaling to real-world application contexts. We tackle the problem of learning actor-centered representations through the notion of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Sathyanarayanan N. Aakur , Sudeep Sarkar

This paper introduces the task of few-shot common action localization in time and space. Given a few trimmed support videos containing the same but unknown action, we strive for spatio-temporal localization of that action in a long…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Pengwan Yang , Pascal Mettes , Cees G. M. Snoek

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

Few-shot learning (FSL) aims to learn novel visual categories from very few samples, which is a challenging problem in real-world applications. Many methods of few-shot classification work well on general images to learn global…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Xiaojian He , Jinfu Lin , Junming Shen

Few-shot classification is a challenging problem that aims to learn a model that can adapt to unseen classes given a few labeled samples. Recent approaches pre-train a feature extractor, and then fine-tune for episodic meta-learning. Other…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Philip Chikontwe , Soopil Kim , Sang Hyun Park

Few-shot learning is a fundamental and challenging problem since it requires recognizing novel categories from only a few examples. The objects for recognition have multiple variants and can locate anywhere in images. Directly comparing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Congqi Cao , Yanning Zhang