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Subjective assessment and instrumental prediction of mobile online gaming on the basis of perceptual dimensions

Motivation

The assessment of the perceived quality of the user (Quality of Experience) of pure audio and video material differs in many ways from the quality of computer games. The later possess a variety of factors due to their interactive nature. Not only factors of complex and innovative game systems have an impact on the QoE, but also the players themselves. A quality judgment, that results by comparing the expected and perceived composition of an entity, depends highly on the preferences, expectations and abilities of the player.

In this still young area of research standard methods for determining the QoE are not directly applicable. This is apparent since in a task oriented human-computer interaction the goal should be achieved with minimal effort. However in a game  the player exerts an effort in order to influence the outcome and thereby feels emotionally attached. Thus new concepts such as immersion and flow, a state of happiness while being in an equilibrium between competence and challenge, appear.

An analysis of the gaming market shows, that the proportion of mobile games has risen sharply in recent years. Mobile games are special in a sense that mobile devices such as smartphones or tablets were originally not designed for games and are therefore not optimally adapted to them. This also applies to the new concept of cloud gaming, where the entire game is executed on a server and only the video and audio material is transferred to the end user.

 

Aim of the project

The aim of this research project is to develop methods to assess the QoE of mobile games. In addition, based on a database containing subjective quality judgments, a model similar to the well known E-model should be constructed to predict the QoE. The following concrete steps are planned for this purpose:

  • Set up and modification of a testbed for conducting experiments including a cloud gaming system for mobile games
  • Development of a classification of games to choose representative games and identify system and user factors
  • Building a questionnaire covering a large space of relevant quality dimensions
  • Identification of quality-relevant perceptual dimensions and analysis of their impact on the overall quality
  • Analyzing the performance of current objective metrics which were proposed for different contents and services in mobile gaming
  • Building a QoE model based on game, system and network characteristics as well as user and context factors
Time Frame: 
01/2016 - 06/2019
T-labs Team Members:
Steven Schmidt
Funding by:
Deutsche Forschungsgemeinschaft (DFG)
Project Number:
MO 1038/21-1

List of Publications

Möller, Sebastian and Schmidt, Steven and Beyer, Justus (2013). An Overview of Concepts and Evaluation Methods for Computer Gaming QoE. Fifth Int. Workshop on Quality of Multimedia Experience 2013 (QoMEX 2013). IEEE, 236–241.


Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian (2017). Update on the Proposal for a Draft New Recommendation on Subjective Evaluation Methods for Gaming Quality (P.GAME). , 1–29.


Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian and Metzger, Florian and Hirth, Matthias and Sužnjević, Mirko (2017). 2nd Update on the Proposal for a Draft New Recommendation on Subjective Evaluation Methods for Gaming Quality (P.GAME). , 1–33.


Zadtootaghaj, Saman and Schmidt, Steven and Anne-Flore, Perin and Ebrahimi, Touradj and Möller, Sebastian (2017). Towards subjective evaluation methods for virtual reality gaming quality assessment. , 1–5.


Zadtootaghaj, Saman and Schmidt, Steven and Möller, Sebastian (2017). Updates on the first draft of "Influence Factors in Gaming Quality of Experience (QoE)". , 1–12.


Zadtootaghaj, Saman and Schmidt, Steven and Möller, Sebastian (2017). Influence Factors on Gaming Quality of Experience (QoE). , 1–13.


Perrin, Anne-Flore and Zadtootaghaj, Saman and Schmidt, Steven and Ebrahimi, Touradj and Möller, Sebastian (2017). Towards the need satisfaction in gaming: A comparison of different gaming platforms. 2017 Ninth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–3.


Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian (2017). Towards the delay sensitivity of games: There is more than genres. 2017 Ninth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–6.


Zadtootaghaj, Saman and Schmidt, Steven and Hamed, Ahmadi and Möller, Sebastian (2017). Towards improving visual attention models using influencing factors in a video gaming context. 2017 15th Annual Workshop on Network and Systems Support for Games (NetGames). IEEE, 1–3.


Zadtootaghaj, Saman and Schmidt, Steven and Barman, Nabajeet and Möller, Sebastian and Martini, Maria G. (2018). A Classification of Video Games based on Game Characteristics linked to Video Coding Complexity. 16th Annual Workshop on Network and Systems Support for Games (NetGames). IEEE, 1–6.


Möller, Sebastian and Schmidt, Steven and Zadtootaghaj, Saman (2018). New ITU-T Standards for Gaming QoE Evaluation and Management. 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–6.


Mowlaei, Sajad and Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian (2018). Know your Game: A bottom-up Approach for Gaming Research. 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–3.


Schmidt, Steven and Ehrenbrink, Patrick and Weiss, Benjamin and Voigt-Antons, Jan-Niklas and Kojic, Tanja and Johnston, Andrew and Möller, Sebastian (2018). Impact of Virtual Environments on Motivation and Engagement During Exergames. 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–6.


Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian (2018). A Comparison of Interactive and Passive Quality Assessment for Gaming Research. 2018 Tenth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–6.


Schmidt, Steven and Zadtootaghaj, Saman and Möller, Sebastian and Metzger, Florian and Hirth, Matthias and Suznjevic, Mirko (2018). Subjective Evaluation Methods for Gaming Quality (P.GAME). , 1–24.


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