Video quality assessment

Details Video quality assessment Video quality assessment

2008-05-23

2010-11-30

Yao, Kwang B (Department: 2473)

Multiplex communications

Diagnostic testing

Determination of communication parameters

Reexamination Certificate

active

07843850

ABSTRACT:
The present invention relates to the problem of estimating the effect of packet transmission impairments, including packet loss, on the subjective quality of a video transmission where frames of data relating to the same video frame or field are permitted to span more than one packet. The invention provides a method of assessing quality of a video signal comprising a sequence of video frames received via a packet switched network using a parameter which is a weighted sum of two counters where the first counter is incremented in dependence of the total number of packets in frames determined to have been received with one or more lost packets and the second counter is incremented in dependence of the number of packets following the first lost packet in each frame and the lost packet itself.

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Broom, VoIP Quality Assessment: Taking Account of the Edge-Device, IEEE Transaction on Audio, Speech and Language Processing, vol. 14, No. 6, Nov. 2006.

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