Video Quality Assessment on Mobile Devices

This paper deals with objective and subjective video assessment methods and evaluation of modern video codecs. The paper begins with a short introduction to video quality evaluation methods. Mainly, it focuses on common objective measurement methods such as Peak-to-Signal Noise Ratio, Structural Similarity, M-Singular Value Decomposition and subjective measurement methods described in ITU-T P.910 standard such as Absolute Category Rating, Degradation Category Rating and Pair Comparison Method. These methods are described in detail in the second and the third chapter of this paper. Finally, the Absolute Category Rating method was used to evaluate H.264 AVC (Advanced Video Coding), H.265 HEVC (High Efficiency Video Coding), VP8 and VP9 codecs for different video sequences with different resolutions. Evaluation process was done on Nexus 9 tablet with Android operating system. All results obtained from evaluation of subjects (6 - 71 years old) are shown in graphs in the last chapter.