EXPERIMEDIA Supports Evaluation of Large-Scale UHD Video Trial at Commonwealth Games 2014

 

The Dutch institute for applied research TNO is developing a novel mobile application that lets viewers interactively explore an ultra-high-definition panoramic video of a live event, allowing them to zoom into areas of interest, with audio being automatically re-mixed to … Continued

The Dutch institute for applied research TNO is developing a novel mobile application that lets viewers interactively explore an ultra-high-definition panoramic video of a live event, allowing them to zoom into areas of interest, with audio being automatically re-mixed to match the view. Initially developed in the FascinatE project and further enhanced within the EXPERIMEDIA experiment iCaCoT the TNO iXperience iPad application is now being tested in large-scale trials at the Commonwealth Games 2014 with the BBC.

iXperience allows users to interact with and navigate within a live video using pan-tilt-zoom commands. The live video feed from the athletics tournament of the Commonwealth Games is captured by BBC R&D in ultra-high resolution, also known as 4K. With iXperience app, users can zoom into the video and see the scene with an amazing level of detail. The application ensures that the current internet connection is used efficiently, and that users only download the area they are watching right now, at the highest resolution possible given the internet bandwidth.

The trial, see Facebook page for more info, is being conducted with citizens in the UK. Each participant installs iXperience from the Apple App Store and uses it according to a predefined schedule. The trial includes two formal usage periods of approx. 15-20 min each, followed by a free use period later on in which the participant can use the app as they wish. The trial will end when the Commonwealth Games end, on the 3rd of August. Each usage is accompanied by a brief questionnaire of about 5-10 questions.

A key aspect of the trial for TNO is to automatically collect Quality of Experience and Quality of Service data to give insights into the performance of the overall system and how performance factors influence user experience. Using EXPERIMonitor, developed by IT Innovation Centre as part of EXPERIMEDIA, TNO can easily adopt a user centric view of experiment design by defining a robust metric model in terms of user observations/benefits (QoE) and system performance (QoS). EXPERIMonitor provides real-time observation and historical data exploration of all aspects of the system under test, from user experience questionnaires and application interaction to service and network behaviours. Taking a holistic view of system evaluation including users, TNO are able to find out what aspects are critically important to enhance user experience and deliver long term sustainable benefits. And with EXPERIMonitor deployed on Amazon Web Services, trials can be scaled up to very large participant populations.

Omar Niamut, Senior Research Scientist at TNO Media and Network Services, says

“TNO is convinced that the EXPERIMEDIA approach to combined QoS/QoE measurement is essential to large-scale Future Media Internet experiments. Having worked with and tested EXPERIMonitor in the iCaCoT experiment, TNO see great benefit is using the EXPERIMonitor for detailed measurements in our Commonwealth Games 2014 trial”.