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Many video understanding tasks work in the offline setting by assuming that the input video is given from the start to the end. However, many real-world problems require the online setting, making a decision immediately using only the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Young Hwi Kim , Seonghyeon Nam , Seon Joo Kim

This paper performs the first investigation into depth for large-scale human action recognition in video where the depth cues are estimated from the videos themselves. We develop a new framework called depth2action and experiment thoroughly…

Computer Vision and Pattern Recognition · Computer Science 2016-08-16 Yi Zhu , Shawn Newsam

Early action prediction (EAP) aims to recognize human actions from a part of action execution in ongoing videos, which is an important task for many practical applications. Most prior works treat partial or full videos as a whole, ignoring…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Xiaoli Liu , Jianqin Yin , Di Guo , Huaping Liu

Anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. We propose a deep convolutional neural network (CNN) that addresses this problem by learning a correspondence between common…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

In this paper, a novel video classification method is presented that aims to recognize different categories of third-person videos efficiently. Our motivation is to achieve a light model that could be trained with insufficient training…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Ali Javidani , Ahmad Mahmoudi-Aznaveh

In this work, we introduce our solution to the EPIC-KITCHENS-100 2022 Action Detection challenge. One-stage Action Detection Transformer (OADT) is proposed to model the temporal connection of video segments. With the help of OADT, both the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Lijun Li , Li'an Zhuo , Bang Zhang

This paper presents a novel learning analytics method: Transition Network Analysis (TNA), a method that integrates Stochastic Process Mining and probabilistic graph representation to model, visualize, and identify transition patterns in the…

Social and Information Networks · Computer Science 2025-02-06 Mohammed Saqr , Sonsoles López-Pernas , Tiina Törmänen , Rogers Kaliisa , Kamila Misiejuk , Santtu Tikka

Detecting actions in videos is an important yet challenging task. Previous works usually utilize (a) sliding window paradigms, or (b) per-frame action scoring and grouping to enumerate the possible temporal locations. Their performances are…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Luxuan Li , Tao Kong , Fuchun Sun , Huaping Liu

Moments capture a huge part of our lives. Accurate recognition of these moments is challenging due to the diverse and complex interpretation of the moments. Action recognition refers to the act of classifying the desired action/activity…

Computer Vision and Pattern Recognition · Computer Science 2018-09-14 Ankit Shah , Harini Kesavamoorthy , Poorva Rane , Pramati Kalwad , Alexander Hauptmann , Florian Metze

Generic motion understanding from video involves not only tracking objects, but also perceiving how their surfaces deform and move. This information is useful to make inferences about 3D shape, physical properties and object interactions.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Carl Doersch , Ankush Gupta , Larisa Markeeva , Adrià Recasens , Lucas Smaira , Yusuf Aytar , João Carreira , Andrew Zisserman , Yi Yang

Beyond the existing single-person and multiple-person human parsing tasks in static images, this paper makes the first attempt to investigate a more realistic video instance-level human parsing that simultaneously segments out each person…

Computer Vision and Pattern Recognition · Computer Science 2018-08-13 Qixian Zhou , Xiaodan Liang , Ke Gong , Liang Lin

Recognizing human actions based on videos has became one of the most popular areas of research in computer vision in recent years. This area has many applications such as surveillance, robotics, health care, video search and human-computer…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Aytekin Nebisoy , Saber Malekzadeh

We present a novel model for Tracking Any Point (TAP) that effectively tracks any queried point on any physical surface throughout a video sequence. Our approach employs two stages: (1) a matching stage, which independently locates a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Carl Doersch , Yi Yang , Mel Vecerik , Dilara Gokay , Ankush Gupta , Yusuf Aytar , Joao Carreira , Andrew Zisserman

We propose an action parsing algorithm to parse a video sequence containing an unknown number of actions into its action segments. We argue that context information, particularly the temporal information about other actions in the video…

Computer Vision and Pattern Recognition · Computer Science 2022-05-23 Nagita Mehrseresht

Association football is a complex and dynamic sport, with numerous actions occurring simultaneously in each game. Analyzing football videos is challenging and requires identifying subtle and diverse spatio-temporal patterns. Despite recent…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Silvio Giancola , Anthony Cioppa , Julia Georgieva , Johsan Billingham , Andreas Serner , Kerry Peek , Bernard Ghanem , Marc Van Droogenbroeck

The growing ageing population and their preference to maintain independence by living in their own homes require proactive strategies to ensure safety and support. Ambient Assisted Living (AAL) technologies have emerged to facilitate ageing…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Vincent Gbouna Zakka , Zhuangzhuang Dai , Luis J. Manso

Although various image-based domain adaptation (DA) techniques have been proposed in recent years, domain shift in videos is still not well-explored. Most previous works only evaluate performance on small-scale datasets which are saturated.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Min-Hung Chen , Zsolt Kira , Ghassan AlRegib , Jaekwon Yoo , Ruxin Chen , Jian Zheng

Human actions recognition is a fundamental task in artificial vision, that has earned a great importance in recent years due to its multiple applications in different areas. %, such as the study of human behavior, security or video…

In this paper, we focus on the spatio-temporal aspect of recognizing Activities of Daily Living (ADL). ADL have two specific properties (i) subtle spatio-temporal patterns and (ii) similar visual patterns varying with time. Therefore, ADL…

Computer Vision and Pattern Recognition · Computer Science 2020-07-08 Srijan Das , Saurav Sharma , Rui Dai , Francois Bremond , Monique Thonnat

Domain adaptation (DA) approaches address domain shift and enable networks to be applied to different scenarios. Although various image DA approaches have been proposed in recent years, there is limited research towards video DA. This is…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Yuecong Xu , Jianfei Yang , Haozhi Cao , Kezhi Mao , Jianxiong Yin , Simon See