infoTECH Feature

April 19, 2012

QoE Systems, Inc. Launches New Instrument for Testing Video Quality Easily, Accurately

Advancing technologies have been enhancing our lives in all arenas, and entertainment is no exception. Quality of video and audio content available to us has improved considerably, and it is now imperative that the content and service provided to users is of the best quality in every way.

QoE Systems, a provider of voice, audio and video QoE monitoring and quality assessment solutions, has developed a new toolset that will help accurately and reliably measure the degradation of video quality during the process of video streaming. As more and more connected devices are being launched in the market to offer streaming video content, all the video content is compressed for convenient data storage and bandwidth conservation. But through video compression and various other signal processes, video quality gets degraded.

The company offers a Q-Master range of test instruments for voice, audio and video quality assessment, and develops test and measurement suites for telecom equipment manufacturers and service providers. It incorporates ITU perceptual algorithms such as PESQ within its solutions to test and measure multimedia quality from the end-users perspective.

ITU-T had recommended a new algorithm known as J.341 in the year 2011, and the Q-Master2 toolset leverages it to bank upon a single metric named Mean Opinion Score or ‘MOS’ to measure the video quality. The MOS is helpful in assessing the video quality as perceived by an actual viewer. J.341 is an advanced video quality test recommendation that consists of various psycho-visual metrics so that the MOS can be monitored. It was related to a proprietary algorithm named VQuad, found to be the most enhanced one among overall 14 algorithms. During the tests, the J.341 recommendation had been found to display around 92 percent correlation with subjective scores.

The J.341 recommendation also deploys a “full reference” methodology to integrate a number of metrics within the MOS. Leveraging preset video clips for testing purposes, the Q-Master2 allows the algorithm to be deployed for live streams using a ‘Real Time Reference’ function as well, so that broadcast signals can be tested and analyzed in a precise manner.

In April 2011, QoE Systems, Inc. announced it would launch its Q-Master2 Video quality analyzer system, designed for telecommunications and new-media development engineers within System OEMs, Service Providers and Military that need a flexible and cost-effective solution to test, measure and analyze the video quality generated and received by their new-media products, services or signals.




Edited by Braden Becker
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