TU Berlin

Quality and Usability LabTanja Kojic

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Tanja Kojić



Tanja Kojić received her M.Sc. degree in Information and Communication Technology at the Faculty of Electrical Engineering and Computing, University of Zagreb. Additionally, she has done supplement studies for Graphic Product Design at the Faculty of Graphic Arts, University of Zagreb and focused on topic of User Experience design. Since November 2017 she is employed as a research assistant at the Quality and Usability Lab where she is working towards a PhD in the field of Virtual Reality. 



Quality and Usability Lab

Technische Universität Berlin 

Ernst-Reuter-Platz 7

D-10587 Berlin, Germany


Comparing emotional states induced by 360 videos via head-mounted display and computer screen
Citation key voigt-antons2020a
Author Voigt-Antons, Jan-Niklas and Lehtonen, Eero and Pinilla Palacios, Andres and Ali, Danish and Kojic, Tanja and Möller, Sebastian
Title of Book 2020 Twelfth International Conference on Quality of Multimedia Experience (QoMEX)
Pages 1–6
Year 2020
Location Athlone, Ireland
Address Piscataway, NJ, USA
Month may
Note Online
Publisher IEEE
Series QoMEX
How Published Fullpaper
Abstract In recent years 360 videos have been becoming more popular. For traditional media presentation e.g. on a computer screen a wide range of assessment methods are available. Different constructs such as perceived quality or the induced emotional state of viewers can be reliably assessed by subjective scales. Many on the subjective methods have only been validated using stimuli presented on a computer screen. This paper is using 360 videos to induce varying emotional states. Videos were presented 1) via head-mounted display and 2) via traditional computer screen. Furthermore, participants were asked to rate their emotional state 1) in retrospect on the self-assessment manikin scale and 2) continuously on a 2-dimensional arousal-valence plane. In a repeated measure design all 18 participants used both presentation systems and both rating systems. Results indicate that there is a statistically significant difference in induced presence due to the presentation system. Furthermore, there was no statistically significant difference in ratings gathered with the two presentation systems. Finally, it was found that for measured arousal a statistically significant difference could be found for the different rating methods, potentially indicating a underestimation of arousal ratings gathered in retrospect. In future, rating methods such as a 2-dimensional arousal-valence plane could offer the advantage of enabling a reliable measurement of emotional states while being more embedded in the experience itself; enabling a more precise capturing of the emotional states.
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