液晶电视画质判定方法.ppt

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1、PictureQualityAssessment紀華錐(JackChi)Testing/TVSoftwareDSBUFeb.27,2004AgendaIntroductionof16:00-16:45PictureQualityAssessmentTestequipmentAssessmentitemsGeometryandDistortionContrastandBrightnessSharpnessandResolutionColorandGrayscaleOthersDemoandpractice16:45-17:302Testequipme

2、ntTVvideogeneratorProgrammablevideogeneratorDVDplayerandtesteddisksColorAnalyzer3AssessmentItemsofPictureQuality(VideoPerformance)GeometryandDistortionContrastandBrightnessSharpnessandResolutionColorandGrayscaleOthersA.GeometryandDistortionA1.VideoH-SizeA2.VideoV-SizeA3.VideoH

3、-PositionA4.VideoV-PositionA5.AspectRatioV-Size(1.85:1&1.66:1)A6.VideoLinearityA7.VideoScaleLinearity5TestItem:H-size(A1),V-size(A2),H-pos(A3),V-pos(A4)Testsignal:MonoscopepatternSource:TVpatterngeneratorCriteria:Width:AandBset5~7Height:CandDset3~5Position:A-B<=2mmandC-D<=2mm6T

4、estItem:AspectRatioV-Size(1.85:1&1.66:1)(A5)Testsignal:CrossHatchpatternSource:AviaDVDCriteria:CanbeadjustedtoFullScreen7TestItem:VideoLinearity(A6)Testsignal:CrossHatchpatternSource:TVpatterngeneratorCriteria:(Max–Min)/Maxscale<5%8TestItem:VerticalScaleLinearity(A7)Testsignal:

5、V-linepatternSource:TVpatterngeneratorCriteria:Smoothchangeofverticallines9TestItem:HorizontalScaleLinearity(A7)Testsignal:H-linepatternSource:TVpatterngeneratorCriteria:Smoothchangeofhorizontallines10AssessmentItemsofPictureQuality(VideoPerformance)GeometryandDistortionContra

6、standBrightnessSharpnessandResolutionColorandGrayscaleOthersB.ContrastandBrightnessB1.FullWhiteBrightnessB2.BackgroundBrightnessB3.Saturation(highBrightness)B4.LowlevelBrightness12TestItem:FullWhiteBrightness(B1)Testsignal:FullWhitepatternSource:TVpatterngeneratorCriteria:Measu

7、redlightoutputwithinpanelBrightness(cd/m2)spec13TestItem:BackgroundBrightness(B2)Testsignal:BackgroundpatternSource:TVpatterngeneratorCriteria:Measuredlightoutputsof(itemB1/B2)withinpanelContrastratiospec14TestItem:Saturation(B3)andLowlevelBrightness(B4)Testsignal:NeedlePulsepa

8、tternSource:AviaDVDCriteria:Excessivelyhighwhitelevelc