Coding efficiency of VP8 and VP9 compression standards for high resolutions

Abstract

Last few years the interest of multimedia services has rapidly increased. This leads to requirements of quality assessment, especially in video domain. Compression together with transmission link imperfection are two main factors that influence the quality. This paper deals with assessment of impact of VP8 and VP9 compression standards on the video quality using objective metrics and defining theirs efficiency. The evaluation is done for four types of sequences with Full HD and Ultra HD resolutions depending on content. The results showed that VP9 codec yields better compression efficiency than VP8. Based on BjØntegaard model VP9 achieves average bitrate saving 12,77% for FHD and 14,44% for UHD resolution ranging from 5% to 21% depending on content and resolution. For more static sequences the improvement is lower and with greater motion the enhancement rises too.