Improving video service quality using network testing solutions

By Tsahi Levent-Levi

Categories: Technology

August 7th, 2008

Video based services are becoming a standard means of communication for both enterprises and service providers; however, video conferencing, surveillance and other video-based services are bandwidth hogs, making video quality a real issue when deploying them over live networks.

Video quality is affected by a wide range of network parameters: bit rate, frame rate, packet losses, jitter, etc. Each can contribute to the reduction of the user’s quality of experience. As enterprises and service providers struggle to deploy video communication services, they are in need of objective and subjective measurements that are designed as automated tools to assist them in analyzing and finding the reasons for their low video quality.

• Objective - measurements based directly on network conditions and codec parameters. These can be quantified without the need for human interference.
• Subjective - measurements based on the human vision models. These simulate the way video is perceived by viewers.

To this end, we have introduced a unique VQ-MOS program that combines the objective and subjective measurements. It links standardized techniques with our Human Vision video quality survey.

Further to this, we just launched a new video and voice network evaluation solution. It’s called eVident. You can learn more about it by watching this short clip:

There’s also a new whitepaper that outlines ways in which you can improve the quality of your video service using specialized network testing software tools. You are welcome to read it. It requires a simple online registration.

For more information, check out Sagee’s post and his take on this product.