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Recently, action proposal methods have played an important role in action recognition tasks, as they reduce the search space dramatically. Most unsupervised action proposal methods tend to generate hundreds of action proposals which include…

Computer Vision and Pattern Recognition · Computer Science 2017-04-05 Waqas Sultani , Dong Zhang , Mubarak Shah

In this paper we propose a novel approach to multi-action recognition that performs joint segmentation and classification. This approach models each action using a Gaussian mixture using robust low-dimensional action features. Segmentation…

Computer Vision and Pattern Recognition · Computer Science 2015-02-09 Johanna Carvajal , Conrad Sanderson , Chris McCool , Brian C. Lovell

Action recognition is a critical task for social robots to meaningfully engage with their environment. 3D human skeleton-based action recognition is an attractive research area in recent years. Although, the existing approaches are good at…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Hui Feng , Shanshan Wang , Shuzhi Sam Ge

State-of-the-art temporal action detectors inefficiently search the entire video for specific actions. Despite the encouraging progress these methods achieve, it is crucial to design automated approaches that only explore parts of the video…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Humam Alwassel , Fabian Caba Heilbron , Bernard Ghanem

Fine-grained and contact-rich manipulation remain challenging for robots, largely due to the underutilization of tactile feedback. To address this, we introduce TouchGuide, a novel cross-policy visuo-tactile fusion paradigm that fuses…

Human action recognition from well-segmented 3D skeleton data has been intensively studied and has been attracting an increasing attention. Online action detection goes one step further and is more challenging, which identifies the action…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Yanghao Li , Cuiling Lan , Junliang Xing , Wenjun Zeng , Chunfeng Yuan , Jiaying Liu

This work aims to tackle the intent recognition problem in Human-Robot Collaborative assembly scenarios. Precisely, we consider an interactive assembly of a wooden stool where the robot fetches the pieces in the correct order and the human…

We consider human activity recognition (HAR) from wearable sensor data in manual-work processes, like warehouse order-picking. Such structured domains can often be partitioned into distinct process steps, e.g., packaging or transporting.…

Signal Processing · Electrical Eng. & Systems 2021-11-09 Stefan Lüdtke , Fernando Moya Rueda , Waqas Ahmed , Gernot A. Fink , Thomas Kirste

Existing person re-identification benchmarks and methods mainly focus on matching cropped pedestrian images between queries and candidates. However, it is different from real-world scenarios where the annotations of pedestrian bounding…

Computer Vision and Pattern Recognition · Computer Science 2017-04-07 Tong Xiao , Shuang Li , Bochao Wang , Liang Lin , Xiaogang Wang

In this study, importance of user inputs is studied in the context of personalizing human activity recognition models using incremental learning. Inertial sensor data from three body positions are used, and the classification is based on…

Machine Learning · Computer Science 2019-05-30 Pekka Siirtola , Heli Koskimäki , Juha Röning

Body actions and head gestures are natural interfaces for interaction in virtual environments. Existing methods for in-place body action recognition often require hardware more than a head-mounted display (HMD), making body action…

Human-Computer Interaction · Computer Science 2023-02-28 Jingbo Zhao , Mingjun Shao , Yaojun Wang , Ruolin Xu

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

Existing action recognition methods mainly focus on joint and bone information in human body skeleton data due to its robustness to complex backgrounds and dynamic characteristics of the environments. In this paper, we combine body skeleton…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Umar Asif , Deval Mehta , Stefan von Cavallar , Jianbin Tang , Stefan Harrer

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

In this paper, we address the problem of searching action proposals in unconstrained video clips. Our approach starts from actionness estimation on frame-level bounding boxes, and then aggregates the bounding boxes belonging to the same…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Nannan Li , Dan Xu , Zhenqiang Ying , Zhihao Li , Ge Li

In this thesis we address two related aspects of visual object recognition: the use of motion information, and the use of internal supervision, to help unsupervised learning. These two aspects are inter-related in the current study, since…

Computer Vision and Pattern Recognition · Computer Science 2018-12-14 Daniel Harari

This study investigates the issue of task allocation in Human-Machine Collaboration (HMC) within the context of Industry 4.0. By integrating philosophical insights and cognitive science, it clearly defines two typical modes of human…

Human-Computer Interaction · Computer Science 2024-10-18 Jiang Xu , Qiyang Miao , Ziyuan Huang , Yilin Lu , Lingyun Sun , Tianyang Yu , Jingru Pei , Qichao Zhao

LLM-powered search agents are increasingly being used for multi-step information seeking tasks, yet the IR community lacks empirical understanding of how agentic search sessions unfold and how retrieved evidence is reflected in later…

Information Retrieval · Computer Science 2026-04-30 Jingjie Ning , João Coelho , Yibo Kong , Yunfan Long , Bruno Martins , João Magalhães , Jamie Callan , Chenyan Xiong

Humans make daily routine decisions based on their internal states in intricate interaction scenarios. This paper presents a probabilistically reconstructive learning approach to identify the internal states of multi-vehicle sequential…

Robotics · Computer Science 2021-08-17 Huanjie Wang , Wenshuo Wang , Shihua Yuan , Xueyuan Li

Deploying service robots in our daily life, whether in restaurants, warehouses or hospitals, calls for the need to reason on the interactions happening in dense and dynamic scenes. In this paper, we present and benchmark three new…

Artificial Intelligence · Computer Science 2023-07-04 Sariah Mghames , Luca Castri , Marc Hanheide , Nicola Bellotto
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