Impact of the Stimulus Presentation Structure on Subjective Video Quality Assessment

Abstract

A study of video quality perceived by user (Quality of Experience, QoE) was conducted with an examination of whether and how the order and structure of the video sequence presentation affects subjective assessment. For this purpose, the influence of content variability/repeatability, the quality of the preceding sequence, and the sequence order were analyzed. Observations on the correlation of QoE with the micro-structure of sequence presentation are described, which can be the basis for hypotheses of the dependence of QoE assessment on the abovementioned factors. The observed relationships regarding the influence of the number of video repetitions and the impact of the predecessor’s quality on subjective evaluation are consistent with research work on the influence of the order/arrangement and structure of research stimuli on the results of subjective evaluations. Areas for further research are indicated, including relating obtained results in the area of QoE to other cognitive sciences, such as psychological, medical, and economic sciences.