Temporal perceptual coding using a visual acuity model
Velibor Adzic, Robert Alan Cohen, Anthony Vetro · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014
This paper describes research and results in which a visual acuity (VA) model of the human visual system (HVS) is used to reduce the bitrate of coded video sequences, by eliminating the need to signal transform coefficients when their corresponding frequencies will not be detected by the HVS. The VA model is integrated into the state of the art HEVC HM codec. Compared to the unmodified codec, up to 45% bitrate savings are achieved while maintaining the same subjective quality of the video sequences. Encoding times are reduced as well.