Experienced audiovisual quality for mobile 3D television

For mobile 3D television, substantial optimization of system resources is needed to provide adequate quality to the viewers while sparing valuable and limited system resources. In the end, the experienced quality of 3D needs to outperform the quality of existing services. The goal of this paper is to explore the influence of audiovisual encoding parameters on viewers´ experienced quality on mobile 3D television. We conducted two extensive subjective quality evaluation experiments where presentation modes (2D/3D), framerates, and video and audio bitrates with several content types were varied. The experiments were carried out on a portable autostereoscopic device using parallax barrier display technology utilizing simulcast stereo video encoding with relatively low total bitrates relevant for broadcasting onto mobile devices. The results showed the superiority of 2D presentation mode, importance of visual over audio quality and that a significant increase in bitrate-framerate resources did not improve the visual quality of 3D. Further work needs to address several display techniques as a part of quality evaluation studies to provide reliable comparisons of critical system factors.