Real-time video quality monitoring

• Published in: EURASIP journal on advances in signal processing Vol. 2011; no. 1; pp. 1 - 18
• Main Authors: Liu, Tao, Narvekar, Niranjan, Wang, Beibei, Ding, Ran, Zou, Dekun, Cash, Glenn, Bhagavathy, Sitaram, Bloom, Jeffrey
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 06.12.2011; Springer Nature B.V; BioMed Central Ltd
• Subjects: Algorithms; Decoders; Engineering; Image and Video Quality Improvement Techniques for Emerging Applications; Mathematical models; Mobile communication systems; Monitoring; Quantum Information Technology; Real time; Signal,Image and Speech Processing; Spintronics; Telephony; G.1070; packet-loss rate estimation; bitrate estimation; video quality monitoring; frame rate estimation
• ISSN: 1687-6180; 1687-6172; 1687-6180
• DOI: 10.1186/1687-6180-2011-122

The ITU-T Recommendation G.1070 is a standardized opinion model for video telephony applications that uses video bitrate, frame rate, and packet-loss rate to measure the video quality. However, this model was original designed as an offline quality planning tool. It cannot be directly used for quality monitoring since the above three input parameters are not readily available within a network or at the decoder. And there is a great room for the performance improvement of this quality metric. In this article, we present a real-time video quality monitoring solution based on this Recommendation. We first propose a scheme to efficiently estimate the three parameters from video bitstreams, so that it can be used as a real-time video quality monitoring tool. Furthermore, an enhanced algorithm based on the G.1070 model that provides more accurate quality prediction is proposed. Finally, to use this metric in real-world applications, we present an example emerging application of real-time quality measurement to the management of transmitted videos, especially those delivered to mobile devices.