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Ensuring the safety and well-being of elderly and vulnerable populations in assisted living environments is a critical concern. Computer vision presents an innovative and powerful approach to predicting health risks through video…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Yixuan Wang , Paul Stynes , Pramod Pathak , Cristina Muntean

This paper presents a novel yet intuitive approach to unsupervised feature learning. Inspired by the human visual system, we explore whether low-level motion-based grouping cues can be used to learn an effective visual representation.…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Deepak Pathak , Ross Girshick , Piotr Dollár , Trevor Darrell , Bharath Hariharan

This paper addresses the critical need for online action representation, which is essential for various applications like rehabilitation, surveillance, etc. The task can be defined as representation of actions as soon as they happen in a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Vishnu S Nair , Sneha Sree , Jayaraj Joseph , Mohanasankar Sivaprakasam

Action segmentation of behavioral videos is the process of labeling each frame as belonging to one or more discrete classes, and is a crucial component of many studies that investigate animal behavior. A wide range of algorithms exist to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Ari Blau , Evan S Schaffer , Neeli Mishra , Nathaniel J Miska , The International Brain Laboratory , Liam Paninski , Matthew R Whiteway

We present MetaUVFS as the first Unsupervised Meta-learning algorithm for Video Few-Shot action recognition. MetaUVFS leverages over 550K unlabeled videos to train a two-stream 2D and 3D CNN architecture via contrastive learning to capture…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Jay Patravali , Gaurav Mittal , Ye Yu , Fuxin Li , Mei Chen

Robots in shared workspaces must interpret human actions from partial, ambiguous observations, where overconfident early predictions can lead to unsafe or disruptive interaction. This challenge is amplified in egocentric views, where…

Robotics · Computer Science 2026-03-13 Zhaoda Du , Michael Bowman , Qiaojie Zheng , Xiaoli Zhang

Predicting and forecasting human dynamics is a very interesting but challenging task with several prospective applications in robotics, health-care, etc. Recently, several methods have been developed for human pose forecasting; however,…

Computer Vision and Pattern Recognition · Computer Science 2018-10-24 Hsu-kuang Chiu , Ehsan Adeli , Borui Wang , De-An Huang , Juan Carlos Niebles

We consider a sequence of related multivariate time series learning tasks, such as predicting failures for different instances of a machine from time series of multi-sensor data, or activity recognition tasks over different individuals from…

Machine Learning · Computer Science 2022-03-15 Vibhor Gupta , Jyoti Narwariya , Pankaj Malhotra , Lovekesh Vig , Gautam Shroff

We present a meta-learning framework for weakly supervised anomaly detection in videos, where the detector learns to adapt to unseen types of abnormal activities effectively when only video-level annotations of binary labels are available.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Jaeyoo Park , Junha Kim , Bohyung Han

This paper presents a novel approach to solve simultaneously the problems of human activity recognition and whole-body motion and dynamics prediction for real-time applications. Starting from the dynamics of human motion and motor system…

Robotics · Computer Science 2023-03-15 Kourosh Darvish , Serena Ivaldi , Daniele Pucci

Numerous powerful point process models have been developed to understand temporal patterns in sequential data from fields such as health-care, electronic commerce, social networks, and natural disaster forecasting. In this paper, we develop…

Computer Vision and Pattern Recognition · Computer Science 2018-08-15 Yatao Zhong , Bicheng Xu , Guang-Tong Zhou , Luke Bornn , Greg Mori

With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams. Recognising actions and detecting action transitions…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Harshala Gammulle , David Ahmedt-Aristizabal , Simon Denman , Lachlan Tychsen-Smith , Lars Petersson , Clinton Fookes

Human motion prediction is an important component to facilitate human robot interaction. Robots need to accurately predict human's future movement in order to safely plan its own motion trajectories and efficiently collaborate with humans.…

Robotics · Computer Science 2019-09-19 Yujiao Cheng , Weiye Zhao , Changliu Liu , Masayoshi Tomizuka

Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

Action localization in untrimmed videos is an important topic in the field of video understanding. However, existing action localization methods are restricted to a pre-defined set of actions and cannot localize unseen activities. Thus, we…

Computer Vision and Pattern Recognition · Computer Science 2019-07-01 Zhu Zhang , Zhou Zhao , Zhijie Lin , Jingkuan Song , Deng Cai

Collaborative robotic systems will be a key enabling technology for current and future industrial applications. The main aspect of such applications is to guarantee safety for humans. To detect hazardous situations, current commercially…

Robotics · Computer Science 2022-02-08 Lorena Gril , Philipp Wedenig , Chris Torkar , Ulrike Kleb

Despite many advances in deep-learning based semantic segmentation, performance drop due to distribution mismatch is often encountered in the real world. Recently, a few domain adaptation and active learning approaches have been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Yu-Ting Chen , Wen-Yen Chang , Hai-Lun Lu , Tingfan Wu , Min Sun

Human motion prediction and understanding is a challenging problem. Due to the complex dynamic of human motion and the non-deterministic aspect of future prediction. We propose a novel sequence-to-sequence model for human motion prediction…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Emad Barsoum , John Kender , Zicheng Liu

Visual-Language-Action models (VLAs) have advanced generalist robot control by mapping multimodal observations and language instructions directly to actions, but sparse action supervision often encourages shortcut mappings rather than…

Robotics · Computer Science 2026-05-04 Hao Luo , Wanpeng Zhang , Yicheng Feng , Sipeng Zheng , Haiweng Xu , Chaoyi Xu , Ziheng Xi , Yuhui Fu , Zongqing Lu

We propose the use of self-supervised learning for human activity recognition with smartphone accelerometer data. Our proposed solution consists of two steps. First, the representations of unlabeled input signals are learned by training a…

Signal Processing · Electrical Eng. & Systems 2021-09-03 Setareh Rahimi Taghanaki , Michael Rainbow , Ali Etemad