In asymmetric stereoscopic video compression,\nthe views are coded with different qualities. According to the\nbinocular suppression theory, the perceived quality is closer\nto that of the higher-fidelity view. Hence, a higher compression\nratio is potentially achieved through asymmetric coding.\nFurthermore, when mixed-resolution coding is applied,\nthe complexity of the coding and decoding is reduced. In\nthis paper, we study whether asymmetric stereoscopic video\ncoding achieves the mentioned claimed benefits. Two sets\nof systematic subjective quality evaluation experiments are\npresented in the paper. In the first set of the experiments, we\nanalyze the extent of downsampling for the lower-resolution\nview in mixed-resolution stereoscopic videos. We show that\nthe lower-resolution view becomes dominant in the subjective\nquality rating at a certain downsampling ratio, and this\nis dependent on the sequence, the angular resolution, and\nthe angular width. In the second set of the experiments,\nwe compare symmetric stereoscopic video coding, qualityasymmetric\nstereoscopic video coding, and mixed-resolution\ncoding subjectively. We show that in many cases, mixedresolution\ncoding achieves a similar subjective quality to that of symmetric stereoscopic video coding, while the computational\ncomplexity is significantly reduced.
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