Impact of encoding configurations on the perceived quality of high definition videoconference sequences

In this paper we evaluate the impact of different encoding configurations such as compression ratios, frame rates and resolution on the perceived quality of high definition video-conference applications. After generating a high quality video database, degraded sequences had their quality assessed by state-of-the-art automatic metrics. Results have shown that, for low rates, it is preferable to decrease the frame rate and resolution than to increase the compression ratio. Also, a higher frame rate tends to be more important than spatial resolution in terms of perceived quality.