Publications by Eleni Kroupi | EPFL Graph Search

Modeling Immersive Media Experiences by Sensing Impact on Subjects

Touradj Ebrahimi, Philippe Hanhart, Jong Seok Lee, Eleni Kroupi, Martin Rerabek

As immersive technologies target to provide higher quality of multimedia experiences, it is important to understand the quality of experience (QoE) perceived by users from various multimedia rendering schemes, in order to design and optimize human-centric ...

Springer Verlag2016

Subject-Independent Odor Pleasantness Classification Using Brain and Peripheral Signals

Touradj Ebrahimi, Jean-Marc Vesin, Eleni Kroupi

Enhanced sensation of reality from multimedia contents can be achieved by creating realistic multimedia environments, using visual, auditory, and olfactory information. Although the affective information from video and audio has been extensively studied, t ...

Ieee-Inst Electrical Electronics Engineers Inc2016

Multimodal Dataset for Assessment of Quality of Experience in Immersive Multimedia

Touradj Ebrahimi, Eleni Kroupi, Martin Rerabek, He Xu, Anne-Flore Nicole Marie Perrin

This paper presents a novel multimodal dataset for the analysis of Quality of Experience (QoE) in emerging immersive multimedia technologies. In particular, the perceived Sense of Presence (SoP) induced by one-minute long video stimuli is explored with res ...

2015

Non-Linear EEG Features for Odor Pleasantness Recognition

Touradj Ebrahimi, Eleni Kroupi, Dionisije Sopic

Since olfactory sense is gaining ground in multimedia applications, it is important to understand the way odor pleasantness is perceived. Although several studies have explored the way odor pleasantness perception influences the power spectral density of t ...

2014

User-independent classification of 2D versus 3D multimedia experiences through EEG and physiological signals

Touradj Ebrahimi, Philippe Hanhart, Jong Seok Lee, Eleni Kroupi, Martin Rerabek

3D image and video have become popular since they can enhance the Quality of Experience (QoE) by adding the depth dimension to the traditional 2D media. In order to design and optimize the human-centric 3D multimedia processing techniques, it is important ...

2014

Predicting Subjective Sensation of Reality During Multimedia Consumption Based on EEG and Peripheral Physiological Signals

Touradj Ebrahimi, Philippe Hanhart, Jong Seok Lee, Eleni Kroupi, Martin Rerabek

Sensation of reality refers to the ability of users to feel present in a multimedia experience. As 3D technologies target to provide more immersive and higher quality multimedia experiences, it is important to understand Quality of Experience (QoE) and sen ...

2014

EEG correlates during video quality perception

Touradj Ebrahimi, Philippe Hanhart, Jong Seok Lee, Eleni Kroupi, Martin Rerabek

Understanding Quality of Experience (QoE) in various multimedia contents is still challenging. In this paper, we investigate the way QoE affects brain oscillations captured by electroencephalography (EEG). In particular, sixteen subjects watched 2D and 3D ...

2014

Implicit Affective Profiling of Subjects based on Physiological Data Coupling

Touradj Ebrahimi, Jean-Marc Vesin, Eleni Kroupi

Evidence from neuroscience and psychology supports the idea that synchronization among various sub-components of the organism is the key-point to emotional processes. This study investigates the way signals from the central nervous system interact with sig ...

2014

Emotion Detection and Recognition based on Brain and Peripheral Physiological Signals

Eleni Kroupi

Emotions affect and determine social relationships and interactions, memory and creativity, and influence the mechanisms of rational thinking and decision making. The influence of emotion on decision making has gained attention in computer science. By d ...

EPFL2014

Driver-response relationships between frontal EEG and Respiration during affective audiovisual stimuli

Touradj Ebrahimi, Jean-Marc Vesin, Eleni Kroupi

2013

Phase-Amplitude Coupling between EEG and EDA while experiencing multimedia content

Touradj Ebrahimi, Jean-Marc Vesin, Eleni Kroupi

2013

Electroencephalogram Alterations During Perception of Pleasant and Unpleasant Odors

Touradj Ebrahimi, Jean-Marc Vesin, Ashkan Yazdani, Eleni Kroupi

2012

Multivariate Spectral Analysis for Identifying the Brain Activations During Olfactory Perception

Touradj Ebrahimi, Jean-Marc Vesin, Ashkan Yazdani, Eleni Kroupi

Olfactory perception is a complex phenomenon associated with other processes such as cognition and emotion. Due to this complexity, there are still open issues and challenges regarding olfactory psychophysiology. One challenge concerns the investigation of ...

Ieee2012

EEG correlates of different emotional states elicited during watching music videos

Touradj Ebrahimi, Ashkan Yazdani, Eleni Kroupi

Studying emotions has become increasingly popular in various research fields. Researchers across the globe have studied various tools to implicitly assess emotions and affective states of people. Human computer interface systems specifically can benefit fr ...

Lecture Notes in Computer Science, Springer2011

OCULAR ARTIFACT REMOVAL FROM EEG: A COMPARISON OF SUBSPACE PROJECTION AND ADAPTIVE FILTERING METHODS

Touradj Ebrahimi, Jean-Marc Vesin, Ashkan Yazdani, Eleni Kroupi

One of the fundamental challenges in EEG signal processing is the selection of a proper method to correct ocular artifacts in the recorded electroencephalogram (EEG). Several methods have been proposed for this task. Among these methods, two main categorie ...

2011