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We present a novel hierarchical model for human activity recognition. In contrast to approaches that successively recognize actions and activities, our approach jointly models actions and activities in a unified framework, and their labels…

Robotics · Computer Science 2015-03-09 Ninghang Hu , Gwenn Englebienne , Zhongyu Lou , Ben Kröse

This work presents a feasibility study of remote attention level estimation based on eye blink frequency. We first propose an eye blink detection system based on Convolutional Neural Networks (CNNs), very competitive with respect to related…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Roberto Daza , Daniel DeAlcala , Aythami Morales , Ruben Tolosana , Ruth Cobos , Julian Fierrez

Estimating 3D human poses from a monocular video is still a challenging task. Many existing methods' performance drops when the target person is occluded by other objects, or the motion is too fast/slow relative to the scale and speed of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Cheng Yu , Bo Wang , Bo Yang , Robby T. Tan

Computer-based assistants have recently attracted much interest due to its applicability to ambient assisted living. Such assistants have to detect and recognize the high-level activities and goals performed by the assisted human beings. In…

Artificial Intelligence · Computer Science 2020-04-29 Roger Granada , Ramon Fraga Pereira , Juarez Monteiro , Leonardo Amado , Rodrigo C. Barros , Duncan Ruiz , Felipe Meneguzzi

An increasing number of systems use indoor positioning for many scenarios such as asset tracking, health care, games, manufacturing, logistics, shopping, and security. Many technologies are available and the use of depth cameras is becoming…

Computers and Society · Computer Science 2016-02-10 Loïc Sevrin , Norbert Noury , Nacer Abouchi , Fabrice Jumel , Bertrand Massot , Jacques Saraydaryan

A user's eyes provide means for Human Computer Interaction (HCI) research as an important modal. The time to time scientific explorations of the eye has already seen an upsurge of the benefits in HCI applications from gaze estimation to the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Atul Sahay , Imon Mukherjee , Kavi Arya

Ensuring human safety is of paramount importance in warehouse environments that feature mixed traffic of human workers and autonomous mobile robots (AMRs). Current approaches often treat humans as generic dynamic obstacles, leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Maximilian Haug , Christian Stippel , Lukas Pscherer , Benjamin Schwendinger , Ralph Hoch , Angel Gaydarov , Sebastian Schlund , Thilo Sauter

COVID-19 presence classification and severity prediction via (3D) thorax computed tomography scans have become important tasks in recent times. Especially for capacity planning of intensive care units, predicting the future severity of a…

Image and Video Processing · Electrical Eng. & Systems 2023-05-16 Dominik Müller , Niklas Schröter , Silvan Mertes , Fabio Hellmann , Miriam Elia , Wolfgang Reif , Bernhard Bauer , Elisabeth André , Frank Kramer

Human activity detection has seen a tremendous growth in the last decade playing a major role in the field of pervasive computing. This emerging popularity can be attributed to its myriad of real-life applications primarily dealing with…

Machine Learning · Computer Science 2015-10-20 Jitenkumar Babubhai Rana , Rashmi Shetty , Tanya Jha

In this work, we present an appearance based human activity recognition system. It uses background modeling to segment the foreground object and extracts useful discriminative features for representing activities performed by humans and…

Robotics · Computer Science 2016-02-11 Bappaditya Mandal

Driver drowsiness problem is considered as one of the most important reasons that increases road accidents number. We propose in this paper a new approach for realtime driver drowsiness in order to prevent road accidents. The system uses a…

Computer Vision and Pattern Recognition · Computer Science 2018-06-04 M. Ben Dkhil , A. Wali , Adel M. Alimi

We propose an end-to-end architecture for joint 2D and 3D human pose estimation in natural images. Key to our approach is the generation and scoring of a number of pose proposals per image, which allows us to predict 2D and 3D poses of…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Gregory Rogez , Philippe Weinzaepfel , Cordelia Schmid

Interpreting human actions requires understanding the spatial and temporal context of the scenes. State-of-the-art action detectors based on Convolutional Neural Network (CNN) have demonstrated remarkable results by adopting two-stream or…

Computer Vision and Pattern Recognition · Computer Science 2021-03-01 Yu Liu , Fan Yang , Dominique Ginhac

Creating mobile robots which are able to find and manipulate objects in large environments is an active topic of research. These robots not only need to be capable of searching for specific objects but also to estimate their poses often…

Robotics · Computer Science 2022-03-09 Jascha Hellwig , Mark Baierl , Joao Carvalho , Julen Urain , Jan Peters

Early dementia diagnosis requires biomarkers sensitive to both structural and functional brain changes. While structural neuroimaging biomarkers have progressed significantly, objective functional biomarkers of early cognitive decline…

Neurons and Cognition · Quantitative Biology 2025-04-16 Tomasz M. Rutkowski , Stanisław Narębski , Mihoko Otake-Matsuura , Tomasz Komendziński

This paper focuses on the challenge of driver safety on the road and presents a novel system for driver drowsiness detection. In this system, to detect the falling sleep state of the driver as the sign of drowsiness, Convolutional Neural…

Image and Video Processing · Electrical Eng. & Systems 2021-05-31 Maryam Hashemi , Alireza Mirrashid , Aliasghar Beheshti Shirazi

The advent of industrial robotics and autonomous systems endow human-robot collaboration in a massive scale. However, current industrial robots are restrained in co-working with human in close proximity due to inability of interpreting…

Robotics · Computer Science 2023-04-24 Zhuangzhuang Dai , Jinha Park , Aleksandra Kaszowska , Chen Li

In this paper, we present a passive method to detect face presentation attack a.k.a face liveness detection using an ensemble deep learning technique. Face liveness detection is one of the key steps involved in user identity verification of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Shashank Shekhar , Avinash Patel , Mrinal Haloi , Asif Salim

Visual recognition systems mounted on autonomous moving agents face the challenge of unconstrained data, but simultaneously have the opportunity to improve their performance by moving to acquire new views of test data. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Dinesh Jayaraman , Kristen Grauman

We propose a novel activity learning framework based on Edge Cloud architecture for the purpose of recognizing and predicting human activities. Although activity recognition has been vastly studied by many researchers, the temporal features…

Artificial Intelligence · Computer Science 2020-05-15 Bing Huang , Athman Bouguettaya , Hai Dong