During the period from 15th of March 2019 to 15th of June 2019 a PhD student from the University of West Bohemia, Department of Industrial Engineering and Management, Pilsen, Czech Republic, came to us on ERASMUS+ Student Mobility for Traineeships programme. His name is Sergo Martirosov and he specializes in developing VR environments, namely for educational and training purposes.
Sergo and the project team worked on preparing and executing the experiment on user QoE for omnidirectional video if the video is watched in a VR environment. The goal was to collect the data about the impacts of different objective parameters that may affect user perception of the quality of video streaming service. These parameters are frame rate and bitrate drops as well as changes in the video resolution. Together we invested a lot of time selecting the appropriate omnidirectional video content that can be used in the experiments. After selecting the videos, we continued with altering the video parameters (manipulating with frame rate, bitrate and resolution) in order to emulate real-life video streaming conditions which may appear in the telecommunication network. After this phase the created video test sequences were used for experimenting in virtual reality environment with 20 test subjects; a questionnaire was prepared in advance for data collection. Finally, the experiment was conducted among the student population of the Faculty and currently, the data analysis is in action.