Balancing attended and global stimuli in perceived video quality assessment

Junyong You*, Jari Korhonen, Andrew Perkis, Touradj Ebrahimi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The visual attention mechanism plays a key role in the human perception system and it has a significant impact on our assessment of perceived video quality. In spite of receiving less attention from the viewers, unattended stimuli can still contribute to the understanding of the visual content. This paper proposes a quality model based on the late attention selection theory, assuming that the video quality is perceived via two mechanisms: global and local quality assessment. First we model several visual features influencing the visual attention in quality assessment scenarios to derive an attention map using appropriate fusion techniques. The global quality assessment as based on the assumption that viewers allocate their attention equally to the entire visual scene, is modeled by four carefully designed quality features. By employing these same quality features, the local quality model tuned by the attention map considers the degradations on the significantly attended stimuli. To generate the overall video quality score, global and local quality features are combined by a content adaptive linear fusion method and pooled over time, taking the temporal quality variation into consideration. The experimental results have been compared to results from appropriate eye tracking and video quality assessment experiments, demonstrating promising performance.

Original languageEnglish
Article number6051516
Pages (from-to)1269-1285
Number of pages17
JournalIEEE Transactions on Multimedia
Issue number6
Publication statusPublished - Dec 2011


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