A no-reference audio-visual video quality metric

Three psychophysical experiments were carried out to understand both audio and video components interact and affect the overall audio-visual quality. In the experiments, subjects independently evaluated the perceived quality of (1) video (without audio), (2) audio (without video ), and (3) video with audio. With the help of the perceptual models obtained using subjective data, we propose 3 no-reference audio-visual quality metrics composed of combination functions of a video and an audio quality metrics. The no-reference video quality metric consists of a blockiness and a blurriness metrics, while the NR audio metric is modification of the SESQA metric. When tested on our database and on a public database, the metrics performed better than single video NR and RF metrics available in the literature.