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27 January 2010 User-centered quality of experience of mobile 3DTV: how to evaluate quality in the context of use?
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Subjective quality evaluation experiments are conducted for optimizing critical system components during the process of system development. Conventionally, the experiments take place in the controlled viewing conditions even though the target application is meant to be used in the heterogeneous mobile settings. The goal of the paper is a two-fold. Firstly, we present a hybrid User-Centered Quality of Experience (UC-QoE) evaluation method for measuring quality in the context of use. The method combines quantitative preference ratings, qualitative descriptions of quality and context, characterization of context in the macro and micro levels, and the measures of effort. Secondly, we present results of two experiments using this method in different field settings and compared to the laboratory settings. We conducted the experiments with a relatively low quality range for current and future data rates for mobile (3D) television by varying encoding parameters for simulcast stereo video. The study was conducted on a portable device with parallax barrier display technology. The results show significant differences between the different field conditions and between field and laboratory measures.
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Satu Jumisko-Pyykkö and Timo Utriainen "User-centered quality of experience of mobile 3DTV: how to evaluate quality in the context of use?", Proc. SPIE 7542, Multimedia on Mobile Devices 2010, 75420W (27 January 2010);


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