Multi-user activity recognition: Challenges and opportunities

Q Li, R Gravina, Y Li, SH Alsamhi, F Sun, G Fortino - Information Fusion, 2020 - Elsevier
Human activity recognition has attracted enormous research interest thanks to its
fundamental importance in several domains spanning from health-care to security, safety …

A comprehensive review of group activity recognition in videos

LF Wu, Q Wang, M Jian, Y Qiao, BX Zhao - International Journal of …, 2021 - Springer
Human group activity recognition (GAR) has attracted significant attention from computer
vision researchers due to its wide practical applications in security surveillance, social role …

[PDF][PDF] Social interaction discovery by statistical analysis of f-formations.

M Cristani, L Bazzani, G Paggetti, A Fossati, D Tosato… - BMVC, 2011 - academia.edu
We present a novel approach for detecting social interactions in a crowded scene by
employing solely visual cues. The detection of social interactions in unconstrained scenarios …

Human behavior analysis in video surveillance: A social signal processing perspective

M Cristani, R Raghavendra, A Del Bue, V Murino - Neurocomputing, 2013 - Elsevier
The analysis of human activities is one of the most intriguing and important open issues for
the automated video surveillance community. Since few years ago, it has been handled …

COMPOSER: Compositional Reasoning of Group Activity in Videos with Keypoint-Only Modality

H Zhou, A Kadav, A Shamsian, S Geng, F Lai… - … on Computer Vision, 2022 - Springer
Abstract Group Activity Recognition detects the activity collectively performed by a group of
actors, which requires compositional reasoning of actors and objects. We approach the task …

[PDF][PDF] 基于视觉的人体动作识别综述

胡琼, 秦磊, 黄庆明 - 计算机学报, 2013 - academia.edu
摘要基于视觉的人体动作识别是图像处理, 计算机视觉, 模式识别, 机器学习,
人工智能等多个学科的交叉研究课题, 在视频监控, 视频检索, 人机交互, 虚拟现实 …

A Comprehensive Review on Group Re-identification in Surveillance Videos

K NAYAK, DP Dogra - ACM Computing Surveys, 2025 - dl.acm.org
Computer vision plays an important role in the automated analysis of human groups. The
appearance of human groups has been studied for various reasons, including detection …

A heat-map-based algorithm for recognizing group activities in videos

W Lin, H Chu, J Wu, B Sheng… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
In this paper, a new heat-map-based algorithm is proposed for group activity recognition.
The proposed algorithm first models human trajectories as series of heat sources and then …

Socially aware interactive playgrounds

A Moreno, R van Delden, R Poppe… - IEEE pervasive …, 2013 - ieeexplore.ieee.org
Interactive playgrounds are technology-enhanced installations that aim to provide rich game
experiences for children by combining the benefits of traditional playgrounds with those of …

Multi-scale motion-based relational reasoning for group activity recognition

Y Zheng, Z Wang, K Gu, L Wu, Z Li, Y Xiang - Engineering Applications of …, 2025 - Elsevier
Existing group activity recognition methods generally use optical flow image to represent
motion within videos, which often struggle to capture the movements of individuals …