[show abstract][hide abstract] ABSTRACT: In order to ensure adequate quality towards the end users at all time, video service providers are getting more interested in monitoring their video streams. Objective video quality metrics provide a means of measuring (audio)visual quality in an automated manner. Unfortunately, most of the current existing metrics cannot be used for real-time monitoring due to their dependencies on the original video sequence. In this paper we present a new objective video quality metric which classifies packet loss as visible or invisible based on information extracted solely from the captured encoded H.264/AVC video bit stream. Our results show that the visibility of packet loss can be predicted with a high accuracy, without the need for deep packet inspection. This enables service providers to monitor quality in real-time.
Quality of Multimedia Experience (QoMEX), 2010 Second International Workshop on; 07/2010
[show abstract][hide abstract] ABSTRACT: With the advent of new upcoming online video services such as IPTV, video on demand (VoD) and peer-to-peer (P2P) video streaming, content providers are gaining more and more interest in measuring and monitoring video quality as perceived by end-users; also known as quality of experience (QoE). Objective video quality metrics provide a means of measuring visual quality degradations but in order to be able to measure QoE, these objective metrics should incorporate all quality affecting parameters such as encoding bitrate, network impairments and error concealment techniques. As a consequence, in order to construct or validate a proper objective video quality metric, extensive video evaluation tests must be performed. In this paper we present a scalable video testing platform that simplifies the management and execution of such video quality evaluation tests. Results indicate that the use of our testing platform drastically reduces overall experiment duration.
Computer and Information Technology, 2008. ICCIT 2008. 11th International Conference on; 01/2009