Calculation of average coding efficiency based on subjective quality scores

摘要: The Bjontegaard model is widely used to calculate the coding efficiency between different codecs. However, this might not be an accurate predictor of true as it relies on PSNR measurements. Therefore, in paper, we propose a average based subjective quality scores, i.e., mean opinion scores (MOS). We call approach Subjective Comparison ENcoders fItted Curves (SCENIC). To consider intrinsic nature bounded rating scales, logistic function fit rate-distortion (R-D) values. MOS and bit rate differences are computed fitted R-D curves. statistical property considered estimate corresponding confidence intervals calculated differences. proposed expected report more realistic always correlated with perceived visual quality.