Attention driven visual QoE: Mechanism and methodologies

Abstract

User experience plays a crucial role in emerging multimedia services. Traditional Quality of Service (QoS) criteria have been demonstrated to be not adequately accurate to measure and manage the user viewing experience when consuming multimedia content. Recently Quality of Experience (QoE), a quality criterion purely driven by subjective cognition, has been defined to evaluate the overall acceptability of a service. As a perceptual concept, QoE is influenced by internal and external factors. In order to effectively manage visual QoE for multimedia services, visual attention, an integral mechanism of the human perceptual system, should be integrated into QoE definition, assessment, and improvement. This paper systematically presents visual QoE management methodologies driven by attention mechanism.

How Do We Experience Crossmodal Correspondent Mulsemedia Content?

“…In a practical scenario that involves mulsemedia services (e.g., watching a movie while experiencing a certain scent), QoE can also be formulated as the acceptable combination of different sensory inputs. As such, in [56], the authors proposed the integration of visual attention models in QoE assessment. In [11], QoE was evaluated through a combination of subjective (questionnaire) and objective methods (heart rate and electrodermal activity) as an indicator of the physiological arousal.…”

“…User QoE is traditionally assessed either through subjective methods such as questionnaires [34], [52], [58] or via objective metrics like electrodermal activity or heart rate [11]. QoE can be affected by different types of internal and external factors that should be handled from a holistic and perceptual point of view [56]. In [56], the author emphasizes the importance of visual attention when users are watching a video presentation, proposing to consider this attention mechanism in defining and assessing QoE.…”

“…QoE can be affected by different types of internal and external factors that should be handled from a holistic and perceptual point of view [56]. In [56], the author emphasizes the importance of visual attention when users are watching a video presentation, proposing to consider this attention mechanism in defining and assessing QoE.…”