1. Can 4G video quality be trusted?
Joe Mele
VP, Dialogic® Media Labs
September, 2009
I will share my opinions and I’m interested in hearing your’s

2. Dialogic® Media Labs Video “center of excellence” inside Dialogic
World-class team of video technologists
Advanced video capabilities for Dialogic products
Research in video analytics
First some background on my team

3. Takeaways from Miami 4G will unleash advanced video applications
Video becomes the new voice
Content must be trusted
I spoke at the 4GWE conference in Miami back in February
Key points..
Enabled by higher bandwidths and all IP
Everything that’s video enabled will become voice enabled; video becomes the defacto means for IP communicatons
Video content needs to be trusted (quality, authentic, not objectionable…)
Focus today on trusted quality….assurance that quality will consistently meet expectations

4. Can 4G video quality be trusted?
Bigger pipes help, but problems remain:
Bandwidth fluctuations
Compression errors
The higher the compression rate, the higher the impact of each lost bit
Transcoding only makes things worse
Big pipes alone won’t solve the quality issue…
Managing video quality is complicated…
There are many other factors that need to be considered…

5. What’s needed?
Today’s network monitoring approaches are also inadequate…
Packet loss, Jitter, Delay...
Carriers measure network parameters (Service Assurance)
Quality of Service (QoS)
Not as simple as lost bits…but it’s where the bits reside in a frame
Visual effect of packet loss can range from zero to disastrous
More advanced parameters are required
Need to analyze the video content
What the viewer perceives…not the network
Quality of Experience (QoE)
Today’s method’s are inadequate….
Different from voice…1% packet loss for voice is tolerable…the loss of a single video packet can cause severe degradation
Need to analyze the content….what the user sees

6. What’s being measured? Quality of Service Delay Jitter Packet loss
Quality of Experience
Blackout
Blurring
Freeze
Macro-blocking
Noise
Sync
Examples of the types of things being measured….
Different from the traditional parameters that are measured for voice or data…where analyzing the network performance is sufficient

7. Monitoring Video QoE: Demonstration
Note: Score represents average of the past 30 frames
Simple demo of analyzing the content
Real time analysis of the perceptual video content
Not measuring all of the types of parameters shown on earlier slide

8. Use Case Example
Example of how video QoE can be monitored in a network environment
And can be adjusted in real time *
QoE monitoring point

9. Takeaways Video quality will still be an issue in the 4G world
Today’s approaches for measuring video quality are insufficient
A different model is required… video quality of experience

10. Joe Mele VP, Dialogic® Media Labs joe.mele@dialogic.com
Thank You!
Joe Mele
VP, Dialogic® Media Labs