User guide

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8.3 AdvancedIPTVMetricsTest
8.3.1 VideoPerceptualQualityMetrics
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Asdescribedinthetechnicalreferencesection AppendixA.1,thePerceptualQuality
MetricsarecalculatedontheselectedvideostreamtoprovideMeanOpinionScore(MOS)
andrelatedparameters.
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VideoPerceptual
Qualityprovidesthe
mostessentialQoE
scoringmetricssucha
VideoMOSscoresthat
resultsfrom
computationofa
complexformula(see
TechnicalOverviewfor
details).
DegradationFactors
provideinsightintothe
natureofMOSscore
degradationbylisting
10contributingfactors
withtheirweight
score.
VideoJitter
Metricsprovide
amountof
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AverageFrame
andI‐frameInter
ArrivalJitter
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AverageandPeak
FrameArrival
Delayin
milliseconds
VideoScene
AnalysisMetrics
provide
proportionsof
thestreamwith
Detail,Panning,
MotionandStatic
Image.
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Thesefactors
weightonthe
overallVideo
MOSscore.