  In this paper, the perceptual quality difference between scalable and
single-layer videos coded at the same spatial, temporal and amplitude
resolution (STAR) is investigated through a subjective test using a mobile
platform. Three source videos are considered and for each source video
single-layer and scalable video are compared at 9 different STARs. We utilize
paired comparison methods with and without tie option. Results collected from
10 subjects in the without "tie" option and 6 subjects in the with "tie" option
show that there is no significant quality difference between scalable and
singlelayer video when coded at the same STAR. An analysis of variance (ANOVA)
test is also performed to further confirm the finding.
