An objective approach to assessing relative perceptual quality of MPEG-encoded video sequences

Lee Wang, R.S. Ramanujan, J.A. Newhouse, M. Kaddoura, A. Ahamad, K.J. Thurber, H.J. Siegel
Proceedings of IEEE International Conference on Multimedia Computing and Systems  
A novel objective approach to assessing the relative perceptual quality of MPEG-encoded video sequences is presented in this paper. Quality comparison of two MPEG-encoded video sequences is performed directly in the frequency domain rather than in the pixel domain. This approach consists of masking and pooling phases. Unique characteristics of human perception on motion videos are observed and the masking phase is adapted to these characteristics accordingly. In the pooling phase, novel steps
more » ... e developed to pool the perceptual frame error variations together with the frame errors themselves to form a single-numbered objective perceptual quality. Experimental results show a very good correlation between this objective quality measurement and the human subjective perception. This objective approach provides a sensible and meaningful automated quality measure for MPEG compression. It should become a viable tool to aid the MPEG encoding optimization, which should result in maximizing the visual perceptual quality for a given bitrate and/or minimizing the bitrate for a given perceptual quality.
doi:10.1109/mmcs.1997.609786 dblp:conf/icmcs/WangRNKATS97 fatcat:4gu2t7rgubb53ietfnfn3nnewe