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Stars in their eyes: what eye-tracking reveal about multimedia perceptual quality

机译:他们眼中的明星:关于多媒体感知质量的眼动揭示了什么

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摘要

Perceptual multimedia quality is of paramount importance to the continued take-up and proliferation of multimedia applications: users will not use and pay for applications if they are perceived to be of low quality. Whilst traditionally distributed multimedia quality has been characterised by Quality of Service (QoS) parameters, these neglect the user perspective of the issue of quality. In order to redress this shortcoming, we characterise the user multimedia perspective using the Quality of Perception (QoP) metric, which encompasses not only a user’s satisfaction with the quality of a multimedia presentation, but also his/her ability to analyse, synthesise and assimilate informational content of multimedia. In recognition of the fact that monitoring eye movements offers insights into visual perception, as well as the associated attention mechanisms and cognitive processes, this paper reports on the results of a study investigating the impact of differing multimedia presentation frame rates on user QoP and eye path data. Our results show that provision of higher frame rates, usually assumed to provide better multimedia presentation quality, do not significantly impact upon the median coordinate value of eye path data. Moreover, higher frame rates do not significantly increase level of participant information assimilation, although they do significantly improve overall user enjoyment and quality perception of the multimedia content being shown.
机译:感知多媒体质量对于多媒体应用程序的持续使用和普及至关重要:如果用户认为应用程序质量低下,他们将不会使用并付费。传统上,分布式多媒体质量的特征在于服务质量(QoS)参数,但这些参数忽略了用户对质量问题的看法。为了解决此缺点,我们使用感知质量(QoP)指标来表征用户的多媒体角度,该指标不仅包含用户对多媒体演示质量的满意度,还包括他/她分析,合成和同化的能力多媒体的信息内容。考虑到监视眼球运动可洞察视觉感知以及相关的注意力机制和认知过程这一事实,本文报道了一项调查结果,该调查研究了不同的多媒体演示帧速率对用户QoP和眼球路径的影响数据。我们的结果表明,通常被认为可以提供更好的多媒体呈现质量的更高帧速率的提供,不会显着影响眼径数据的中值坐标值。而且,较高的帧速率并没有显着提高参与者信息同化的水平,尽管它们确实显着提高了整体用户的欣赏度和所显示的多媒体内容的质量感知。

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