Abstract
We analyzed the influence of bitrate of video and audio on realistic sensation, and try to estimate the realistic sensation from bitrate. Firstly, we conducted the subjective assessment by the SD method, and factor analized in order to compress the evaluation space. As a result, three kinds of factors were obtained. Secondly, we conduced similary the subjective realistic sensation score. Moreover, the multiple linear regression analysis was conducted with the realistic sensation and the three scores. Therfore, the realistic sensation was able to estimate with sufficient accuracy by the three scores. Thirdly, we conduced multiple linear regression analysis by the two scores and bitrate, since out of all three factors' scores, two scores correlated with bitrate of video and audio. Consequently, the two scores were able to estimate by bitrate with good accuracy. Therefore, it turned out that bitrate of video and audio influences the realistic sensations, and was confirmed that realistic sensation could be estimated from bitrate of video and audio.
