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In this report, we describe the technical details of our submission to the EPIC-Kitchens Action Anticipation Challenge 2022. In this competition, we develop the following two approaches. 1) Anticipation Time Knowledge Distillation using the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Zeyu Jiang , Changxing Ding

Weakly-supervised action localization aims to recognize and localize action instancese in untrimmed videos with only video-level labels. Most existing models rely on multiple instance learning(MIL), where the predictions of unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Guiqin Wang , Peng Zhao , Cong Zhao , Shusen Yang , Jie Cheng , Luziwei Leng , Jianxing Liao , Qinghai Guo

Anticipating actions before they are executed is crucial for a wide range of practical applications, including autonomous driving and robotics. In this paper, we study the egocentric action anticipation task, which predicts future action…

Computer Vision and Pattern Recognition · Computer Science 2021-01-20 Yu Wu , Linchao Zhu , Xiaohan Wang , Yi Yang , Fei Wu

Self-supervised methods have shown remarkable progress in learning high-level semantics and low-level temporal correspondence. Building on these results, we take one step further and explore the possibility of integrating these two features…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Rui Qian , Shuangrui Ding , Xian Liu , Dahua Lin

The problem of action recognition involves locating the action in the video, both over time and spatially in the image. The dominant current approaches use supervised learning to solve this problem, and require large amounts of annotated…

Computer Vision and Pattern Recognition · Computer Science 2020-03-30 Sathyanarayanan N. Aakur , Sudeep Sarkar

In a noisy conversation environment such as a dinner party, people often exhibit selective auditory attention, or the ability to focus on a particular speaker while tuning out others. Recognizing who somebody is listening to in a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Fiona Ryan , Hao Jiang , Abhinav Shukla , James M. Rehg , Vamsi Krishna Ithapu

In this report, we describe our approach to egocentric video object segmentation. Our method combines large-scale visual pretraining from SAM2 with depth-based geometric cues to handle complex scenes and long-term tracking. By integrating…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Mingqi Gao , Haoran Duan , Tianlu Zhang , Jungong Han

We propose a soft attention based model for the task of action recognition in videos. We use multi-layered Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units which are deep both spatially and temporally. Our model…

Machine Learning · Computer Science 2016-02-16 Shikhar Sharma , Ryan Kiros , Ruslan Salakhutdinov

In this paper, we propose a new approach to under-stand actions in egocentric videos that exploits the semantics of object interactions at both frame and temporal levels. At the frame level, we use a region-based approach that takes as…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Alejandro Cartas , Petia Radeva , Mariella Dimiccoli

The temporal segmentation of events is an essential task and a precursor for the automatic recognition of human actions in the video. Several attempts have been made to capture frame-level salient aspects through attention but they lack the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Action recognition has become a rapidly developing research field within the last decade. But with the increasing demand for large scale data, the need of hand annotated data for the training becomes more and more impractical. One way to…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Hilde Kuehne , Alexander Richard , Juergen Gall

The demand for accurate food quantification has increased in the recent years, driven by the needs of applications in dietary monitoring. At the same time, computer vision approaches have exhibited great potential in automating tasks within…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Valasia Vlachopoulou , Ioannis Sarafis , Alexandros Papadopoulos

In this paper, we present a framework that jointly retrieves and spatiotemporally highlights actions in videos by enhancing current deep cross-modal retrieval methods. Our work takes on the novel task of action highlighting, which…

Computer Vision and Pattern Recognition · Computer Science 2020-05-20 Seito Kasai , Yuchi Ishikawa , Masaki Hayashi , Yoshimitsu Aoki , Kensho Hara , Hirokatsu Kataoka

We propose a self-supervised algorithm to learn representations from egocentric video data. Recently, significant efforts have been made to capture humans interacting with their own environments as they go about their daily activities. In…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Himangi Mittal , Pedro Morgado , Unnat Jain , Abhinav Gupta

Real-time video analysis remains a challenging problem in computer vision, requiring efficient processing of both spatial and temporal information while maintaining computational efficiency. Existing approaches often struggle to balance…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Shahla John

We present an approach to labeling short video clips with English verbs as event descriptions. A key distinguishing aspect of this work is that it labels videos with verbs that describe the spatiotemporal interaction between event…

Spatio-temporal feature learning is of central importance for action recognition in videos. Existing deep neural network models either learn spatial and temporal features independently (C2D) or jointly with unconstrained parameters (C3D).…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu

Video activity localisation has recently attained increasing attention due to its practical values in automatically localising the most salient visual segments corresponding to their language descriptions (sentences) from untrimmed and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Jiabo Huang , Yang Liu , Shaogang Gong , Hailin Jin

Spatiotemporal action recognition is the task of locating and classifying actions in videos. Our project applies this task to analyzing video footage of restaurant workers preparing food, for which potential applications include automated…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Akshat Gupta , Milan Desai , Wusheng Liang , Magesh Kannan

Detecting and recognizing human action in videos with crowded scenes is a challenging problem due to the complex environment and diversity events. Prior works always fail to deal with this problem in two aspects: (1) lacking utilizing…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Li Yuan , Yichen Zhou , Shuning Chang , Ziyuan Huang , Yunpeng Chen , Xuecheng Nie , Tao Wang , Jiashi Feng , Shuicheng Yan