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Transformers have excelled in natural language processing and computer vision, paving their way to sensor-based Human Activity Recognition (HAR). Previous studies show that transformers outperform their counterparts exclusively when they…

Machine Learning · Computer Science 2024-10-18 Clayton Souza Leite , Henry Mauranen , Aziza Zhanabatyrova , Yu Xiao

Human Activity Recognition (HAR) has recently witnessed advancements with Transformer-based models. Especially, ActionFormer shows us a new perspectives for HAR in the sense that this approach gives us additional outputs which detect the…

Machine Learning · Computer Science 2025-05-28 Kunpeng Zhao , Asahi Miyazaki , Tsuyoshi Okita

We introduce a multi-stage framework that uses mean curvature on a hand surface and focuses on learning interaction between hand and object by analyzing hand grasp type for hand action recognition in egocentric videos. The proposed method…

Computer Vision and Pattern Recognition · Computer Science 2021-09-09 Sangpil Kim , Jihyun Bae , Hyunggun Chi , Sunghee Hong , Byoung Soo Koh , Karthik Ramani

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

Despite the notable progress made in action recognition tasks, not much work has been done in action recognition specifically for human-robot interaction. In this paper, we deeply explore the characteristics of the action recognition task…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ziyang Song , Ziyi Yin , Zejian Yuan , Chong Zhang , Wanchao Chi , Yonggen Ling , Shenghao Zhang

Human-object interaction (HOI) detection as a downstream of object detection tasks requires localizing pairs of humans and objects and extracting the semantic relationships between humans and objects from an image. Recently, one-stage…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Junwen Chen , Keiji Yanai

We investigate a new problem of detecting hands and recognizing their physical contact state in unconstrained conditions. This is a challenging inference task given the need to reason beyond the local appearance of hands. The lack of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Supreeth Narasimhaswamy , Trung Nguyen , Minh Hoai

Learning action models from real-world human-centric interaction datasets is important towards building general-purpose intelligent assistants with efficiency. However, most existing datasets only offer specialist interaction category and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Liang Xu , Chengqun Yang , Zili Lin , Fei Xu , Yifan Liu , Congsheng Xu , Yiyi Zhang , Jie Qin , Xingdong Sheng , Yunhui Liu , Xin Jin , Yichao Yan , Wenjun Zeng , Xiaokang Yang

Predicting the behaviors of other agents on the road is critical for autonomous driving to ensure safety and efficiency. However, the challenging part is how to represent the social interactions between agents and output different possible…

Robotics · Computer Science 2021-09-15 Zhiyu Huang , Xiaoyu Mo , Chen Lv

Action quality assessment (AQA) is an active research problem in video-based applications that is a challenging task due to the score variance per frame. Existing methods address this problem via convolutional-based approaches but suffer…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Abhay Iyer , Mohammad Alali , Hemanth Bodala , Sunit Vaidya

Video action detection (spatio-temporal action localization) is usually the starting point for human-centric intelligent analysis of videos nowadays. It has high practical impacts for many applications across robotics, security, healthcare,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Xin Hu , Zhenyu Wu , Hao-Yu Miao , Siqi Fan , Taiyu Long , Zhenyu Hu , Pengcheng Pi , Yi Wu , Zhou Ren , Zhangyang Wang , Gang Hua

Action recognition is an important problem that requires identifying actions in video by learning complex interactions across scene actors and objects. However, modern deep-learning based networks often require significant computation, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Yi Huang , Asim Kadav , Farley Lai , Deep Patel , Hans Peter Graf

This paper presents a novel framework for real-time human action recognition in industrial contexts, using standard 2D cameras. We introduce a complete pipeline for robust and real-time estimation of human joint kinematics, input to a…

Egocentric vision holds great promises for increasing access to visual information and improving the quality of life for people with visual impairments, with object recognition being one of the daily challenges for this population. While we…

Computer Vision and Pattern Recognition · Computer Science 2020-03-02 Kyungjun Lee , Abhinav Shrivastava , Hernisa Kacorri

We revisit the study of a wrist-mounted camera system (referred to as HandCam) for recognizing activities of hands. HandCam has two unique properties as compared to egocentric systems (referred to as HeadCam): (1) it avoids the need to…

Computer Vision and Pattern Recognition · Computer Science 2016-03-23 Cheng-Sheng Chan , Shou-Zhong Chen , Pei-Xuan Xie , Chiung-Chih Chang , Min Sun

Unlike traditional third-person cameras mounted on robots, a first-person camera, captures a person's visual sensorimotor object interactions from up close. In this paper, we study the tight interplay between our momentary visual attention…

Computer Vision and Pattern Recognition · Computer Science 2017-06-13 Gedas Bertasius , Hyun Soo Park , Stella X. Yu , Jianbo Shi

We address the challenging task of anticipating human-object interaction in first person videos. Most existing methods ignore how the camera wearer interacts with the objects, or simply consider body motion as a separate modality. In…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Miao Liu , Siyu Tang , Yin Li , James Rehg

This paper focuses on building object-centric representations for long-term action anticipation in videos. Our key motivation is that objects provide important cues to recognize and predict human-object interactions, especially when the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Ce Zhang , Changcheng Fu , Shijie Wang , Nakul Agarwal , Kwonjoon Lee , Chiho Choi , Chen Sun

Human activity recognition in videos has been widely studied and has recently gained significant advances with deep learning approaches; however, it remains a challenging task. In this paper, we propose a novel framework that simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Dong-Gyu Lee , Seong-Whan Lee

Human emotion recognition plays an important role in human-computer interaction. In this paper, we present our approach to the Valence-Arousal (VA) Estimation Challenge, Expression (Expr) Classification Challenge, and Action Unit (AU)…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Weiwei Zhou , Jiada Lu , Zhaolong Xiong , Weifeng Wang