CONTENT QUALITY MONITORING IN DIGITAL TV NETWORKS

Keywords: MPEG-2 - QOS Monitoring - digital broadcasting network - Video Quality - quality assessment method

General Description
This patented technology constitute a generic framework relating to an end-user perceived quality assessment method, and more particularly on audio-video signal quality.
It consists in measuring the degradations generated by MPEG-2 digital signal storage or transmission chains due to the errors introduced by the data rate reduction algorithms or by a defective transmission link.
It allows to assess in real time the audio video signals quality while broadcasting.

An important part of the assessment focuses also on what the end-user perceives. Thus the invention allows to attribute a note to the signals, close to the subjective note that would have been given by a human observer.


The main innovative aspects are

- In contrast to existing solutions for the same application, the proposed system evaluates quality on the basis of a comparison between measurements made at the entrance of the network and at the monitoring point.
- The choice of a reduced reference approach is the most efficient one for network supervision, as a good trade-off between complexity and measurement performance is reached.
- The proposed system enables perceived QoS monitoring by integrating audio and video signal quality measurement into a global information.

Many kinds of applications can be considered

- Digital Video Broadcasting,
- Implementation on MPEG-2 Signals,
- Video streaming,
- Audio / radio on the Internet,
- Digital TV.

This technology has been awarded by the General Ferrié Electronics Grand Prix 2001 by SEE (French scientific society for electronics, telecommunications and data processing).

Type of collaboration sought:
Licence agreement
Intellectual Property Rights:
Patent granted
Type of partner:
Test and measurement manufacturer

Download pdf Datasheet :