Mobile video quality assessment: A current challenge for combined metrics

Abstract

Rapid development of mobile devices such as smartphones and tablets causes the growing interest in video transmission and display dedicated for mobile devices. Considering the typical distortions introduced mainly by video com-pression and transmission errors, their influence on the perceived video quality is not necessarily very similar to subjective evaluation of still images or videos presented using typical computers equipped with monitors. Therefore, there is a need of verification of usefulness of known image and video quality metrics for this purpose together with recently proposed combined metrics leading to highly linear correlation with subjective quality evaluations. In this paper some results of such verifications conducted using LIVE Mobile Video Quality Database as well as results of optimisation of proposed combined metric are presented. Obtained results are superior in comparison to other known metrics applied using frame-by-frame approach.