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.