An Approach for Modeling the Effects of Video Resolution and Size on the Perceived Visual Quality

Video-telephony and mobile TV are typical multimedia services which are becoming a part of the everyday life due to the increase in bandwidth availability and also viewing devices with larger screen sizes (smart phone, PDA, etc). To ensure high quality, packet layer parametric quality prediction models for audio-visual services like video-telephony and IPTV video streaming have emerged and are still under development. Those parametric models depend on a set of parameters which have to be tuned for every specific application. In this work, we carry out an experiment to analyze the impact of video resolution and up scaling operation on perceived quality. We could show that the current parametric models can be modified to explicitly integrate the joined effect of resolution and display video size.