On Quality of Experience in Remote Visualization on Mobile Devices

Gianluca Paravati, Andrea Sanna, Fabrizio Lamberti and Luigi Ciminiera
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Gianluca Paravati: Politecnico di Torino, Italy
Andrea Sanna: Politecnico di Torino, Italy
Fabrizio Lamberti: Politecnico di Torino, Italy
Luigi Ciminiera: Politecnico di Torino, Italy

International Journal of Mobile Human Computer Interaction (IJMHCI), 2010, vol. 2, issue 1, 1-20

Abstract: Quality of Experience (QoE) is a relatively new concept which represents a way of measuring user satisfaction in the use of a certain kind of service. This work investigates issues related to the QoE in manipulating 3D scenes on mobile devices, by focusing on scenarios based on the remote visualization paradigm where a remote server is in charge of computing a flow of compressed images to be delivered to client devices. A novel approach able to dynamically set the encoding parameters at the server side is presented; the considered parameters are frame resolution, frame rate and image quality. The proposed solution is able to tune the above parameters according to both user preferences and network performance. Experimental tests are exploited to assess the relationship between the involved parameters and the QoE. Results obtained by considering low resource hardware (e.g. mobile devices) and unreliable connections (e.g. wireless networks) are presented. User feedback proves the effectiveness of the proposed approach.

Date: 2010
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