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Recent studies have shown that the environment where people eat can affect their nutritional behaviour. In this work, we provide automatic tools for a personalised analysis of a person's health habits by the examination of daily recorded…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Estefania Talavera , Maria Leyva-Vallina , Md. Mostafa Kamal Sarker , Domenec Puig , Nicolai Petkov , Petia Radeva

Wearable cameras capture a first-person view of the daily activities of the camera wearer, offering a visual diary of the user behaviour. Detection of the appearance of people the camera user interacts with for social interactions analysis…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Estefania Talavera , Alexandre Cola , Nicolai Petkov , Petia Radeva

Egocentric vision consists in acquiring images along the day from a first person point-of-view using wearable cameras. The automatic analysis of this information allows to discover daily patterns for improving the quality of life of the…

Computer Vision and Pattern Recognition · Computer Science 2017-11-10 Marc Bolaños , Álvaro Peris , Francisco Casacuberta , Sergi Soler , Petia Radeva

The automatic discovery of behaviour is of high importance when aiming to assess and improve the quality of life of people. Egocentric images offer a rich and objective description of the daily life of the camera wearer. This work proposes…

Computer Vision and Pattern Recognition · Computer Science 2021-01-06 Martin Menchon , Estefania Talavera , Jose M Massa , Petia Radeva

We present a method to analyze images taken from a passive egocentric wearable camera along with the contextual information, such as time and day of week, to learn and predict everyday activities of an individual. We collected a dataset of…

Computer Vision and Pattern Recognition · Computer Science 2015-10-07 Daniel Castro , Steven Hickson , Vinay Bettadapura , Edison Thomaz , Gregory Abowd , Henrik Christensen , Irfan Essa

This paper proposes a system for automatic social pattern characterization using a wearable photo-camera. The proposed pipeline consists of three major steps. First, detection of people with whom the camera wearer interacts and, second,…

Computer Vision and Pattern Recognition · Computer Science 2017-09-19 Maedeh Aghaei , Mariella Dimiccoli , Cristian Canton Ferrer , Petia Radeva

The increasing popularity of egocentric cameras has generated growing interest in studying multi-camera interactions in shared environments. Although large-scale datasets such as Ego4D and Ego-Exo4D have propelled egocentric vision…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Ziwei Zhao , Xizi Wang , Yuchen Wang , Feng Cheng , David Crandall

Lifelogging is a process of collecting rich source of information about daily life of people. In this paper, we introduce the problem of sentiment analysis in egocentric events focusing on the moments that compose the images recalling…

Computer Vision and Pattern Recognition · Computer Science 2017-03-30 Estefania Talavera , Nicola Strisciuglio , Nicolai Petkov , Petia Radeva

Eating habits are learned throughout the early stages of our lives. However, it is not easy to be aware of how our food-related routine affects our healthy living. In this work, we address the unsupervised discovery of nutritional habits…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Estefania Talavera , Andreea Glavan , Alina Matei , Petia Radeva

Given a user wearing a low frame rate wearable camera during a day, this work aims to automatically detect the moments when the user gets engaged into a social interaction solely by reviewing the automatically captured photos by the worn…

Computer Vision and Pattern Recognition · Computer Science 2017-05-15 Maedeh Aghaei , Mariella Dimiccoli , Petia Radeva

Following the increasingly popular trend of social interaction analysis in egocentric vision, this manuscript presents a comprehensive study for automatic social pattern characterization of a wearable photo-camera user, by relying on the…

Computer Vision and Pattern Recognition · Computer Science 2018-01-10 Maedeh Aghaei , Mariella Dimiccoli , Cristian Canton Ferrer , Petia Radeva

We consider the problem of localizing visitors in a cultural site from egocentric (first person) images. Localization information can be useful both to assist the user during his visit (e.g., by suggesting where to go and what to see next)…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Francesco Ragusa , Antonino Furnari , Sebastiano Battiato , Giovanni Signorello , Giovanni Maria Farinella

Wearable cameras can gather large a\-mounts of image data that provide rich visual information about the daily activities of the wearer. Motivated by the large number of health applications that could be enabled by the automatic recognition…

Computer Vision and Pattern Recognition · Computer Science 2018-05-11 Alejandro Cartas , Juan Marin , Petia Radeva , Mariella Dimiccoli

We focus on first-person action recognition from egocentric videos. Unlike third person domain, researchers have divided first-person actions into two categories: involving hand-object interactions and the ones without, and developed…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Sagar Verma , Pravin Nagar , Divam Gupta , Chetan Arora

Egocentric videos offer fine-grained information for high-fidelity modeling of human behaviors. Hands and interacting objects are one crucial aspect of understanding a viewer's behaviors and intentions. We provide a labeled dataset…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Lingzhi Zhang , Shenghao Zhou , Simon Stent , Jianbo Shi

While the rapid proliferation of wearable cameras has raised significant concerns about egocentric video privacy, prior work has largely overlooked the unique privacy threats posed to the camera wearer. This work investigates the core…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yijiang Li , Genpei Zhang , Jiacheng Cheng , Yi Li , Xiaojun Shan , Dashan Gao , Jiancheng Lyu , Yuan Li , Ning Bi , Nuno Vasconcelos

Lifelogging devices are spreading faster everyday. This growth can represent great benefits to develop methods for extraction of meaningful information about the user wearing the device and his/her environment. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Marc Bolaños , Petia Radeva

In our recent dietary assessment field studies on passive dietary monitoring in Ghana, we have collected over 250k in-the-wild images. The dataset is an ongoing effort to facilitate accurate measurement of individual food and nutrient…

This paper proposes an approach to automatically categorize the social interactions of a user wearing a photo-camera 2fpm, by relying solely on what the camera is seeing. The problem is challenging due to the overwhelming complexity of…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Emanuel Sanchez Aimar , Petia Radeva , Mariella Dimiccoli

We envision a future time when wearable cameras are worn by the masses and recording first-person point-of-view videos of everyday life. While these cameras can enable new assistive technologies and novel research challenges, they also…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Ryo Yonetani , Kris M. Kitani , Yoichi Sato
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