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By | February 2, 2017 | 1,721 views
 

What different models for predicting visual quality exist? What models are applicable for which test cases?

In a previous blog entry about the challenges of mobile video services, we discussed video quality as a perceived metric and how it can be measured subjectively in viewing sessions. In this post, we will take a closer look at automated video quality measurement methods, often called objective measurements, which are applied in real field video quality measurements. An objective…

 
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By | December 21, 2016 | 2,472 views
 

Evaluating visual quality and video MOS based on subjective perception

Video services are very popular and so is their use today in various services and media. YouTube and Netflix are merely the pioneers in video streaming; many other services have followed. Broadcasting stations move more and more content online, videos are shared via social media, and peer-to-peer applications are on the rise; for example, video chat services (e.g. Skype), or…

 
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By | November 24, 2016 | 990 views
 

Challenges of mobile video services for network operators

Mobile video services by far demand the biggest chunk of data in today’s mobile networks. According to the Cisco Visual Networking Index (VNI) Forecast 2016, by 2020, video services will account for 75% of all data consumption. The performance of video services has a large influence on customer satisfaction. For the mobile network operator, the decision to deliver higher or…

 
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By | November 17, 2016 | 874 views
 

Webinar report: mobile video quality testing

Video is ubiquitous. The performance of video services in mobile networks is fundamental to customer satisfaction and quality of experience. Video quality testing in mobile networks is challenging; but with the right tools and measurement approaches, it proves highly successful.  Today, there is a general tendency towards higher resolutions. This is in line with increasing transport capacities of networks, high-resolution…

 
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