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引用次数: 6
摘要
人们对多媒体内容的兴趣正在迅速增加。近年来，在提高多媒体系统的体验质量(QoE)方面取得了巨大进展。超高清电视(Ultra High Definition Television，简称Ultra HDTV)作为下一代电视，正受到越来越多人们的关注。超高清电视可以提供一种新的观看体验。在高清电视中，观测距离起着重要的作用。如果观察者坐得离电视更远，那是最佳的观看距离，他可能会失去高清电视的好处。结果表明，在非最佳观看距离的情况下，观看者对超高清分辨率的偏好并没有显著提高。最佳观看距离的结果很大程度上取决于视频内容和比特率。在我们的案例中，基于一份调查问卷，发现82%拥有超高清电视的受访者没有坐在最佳距离。
Visual Quality Assessment Considering Ultra HD, Full HD Resolution and Viewing Distance
Interest in multimedia content is rapidly increasing. In recent years there was extremely progress in improving Quality of Experience (QoE) in multimedia systems. As the next generation of TV, Ultra High Definition Television (Ultra HDTV) is attracting more and more people’s attention. Ultra HDTV can provide a new viewer experience. In the case of HDTV, the observation distance plays an important role. If the observer sits further away from the television, that is the optimal viewing distance, and he may lose the benefit of HDTV. The results showed that for the case of non-optimal viewing distance, viewer’s preference of Ultra HD resolution is not significantly higher. The result for the optimal viewing distance is very dependent on the video content and the bitrate. In our case, base on a questionnaire, it was found that 82 % of respondents owning Ultra HDTV do not sit at optimal distance.
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