Huawei U-vMOS: analysis of the video experience on different screens and networks

Video quality, the interactive experience and the user experience have been the three key factors that the company has identified for the development of this system, recently presented at the second edition of the Ultra-Broadband Foum event (UBBF).

The global president of marketing and sales of Huawei, Ken Wang (in the image), has been in charge of presenting the system to evaluate the U-vMOS video experience, that takes into account users' video experiences and combines them with the analysis of associated technologies, in order to provide an objective assessment of the entire video experience.

The goal is to provide a unified standard for evaluating the user experience, agreed with the guidance of operators and other members of the video industry, to improve customer satisfaction.

The standardization sector of the International Telecommunication Union (ITU-T) started in the year 2009 researching the Mean Opinion Score standard for video (VMOS) to provide a reference to operation and maintenance systems (Or&M) to monitor video service indicators.

While and given that the user uses numerous devices to connect, Huawei officials believe a more comprehensive rating system is needed, able to evaluate the quality of the video experience on different networks, Screens, and even in different scenarios, with a unified, user-oriented standard.

The company's video research teams have conducted in-depth technical studies to identify the three most important factors affecting the video experience: quality, interactive experience and user experience. The company has defined as key in U-vMOS three parameters to measure these factors.

In this sense, the company has conducted research according to the characteristics of the human eye and the resolution it can perceive, as well as viewer reactions to different screens with different resolutions. The algorithm has taken into account the experience of several users when watching videos from a specific distance.

U-vMOS supports a resolution ranging from 360P to 8K and video playback on screens, since 4,5 to 100 Inch, breaking the boundaries of the original definition of VMOS, in which the differences could only be compared through screens with the same resolution.

Through different tests and verifications, Huawei has defined objective indicators that evaluate user interoperability in different usage scenarios and viewing experience, including initial load time, zapping and search response, allowing U-vMOS to measure user experience indicators through the visualization process.

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