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1、PureViewimagingtechnology.PureViewimagingtechnologyWrittenbyJuhaAlakarhu,DamianDinning,andEeroSalmelinonbehalfofmanydedicatedNokiaimagingexperts©2012Nokia©2012Nokia1PureViewimagingtechnology.ThispaperdescribesNokia’snewPureViewProimagingtechnologyaswellastheproduct
2、,Nokia808PureView,featuringit.TheNokiaPureViewProimagingtechnologyisthecombinationofalarge,superhighresolution41MpixwithhighperformanceCarlZeissoptics.Thelargesensorenablespixeloversampling,whichwillbeexplainedindetailinthispaperbutinanutshellitmeansthecombinationo
3、fmanypixelsintooneperfectpixel.PureViewimagingtechnologyistheresultofmanyyearsofresearchanddevelopmentandthetangiblefruitsofthisworkareamazingimagequality,losslesszoom,andsuperiorlowlightperformance.ArevolutioninimagingPureViewProimagingtechnologydoesn’trepresentas
4、tepchangeforcamerasmartphonesperformance,somuchasaquantumleapforward.ThefirstdevicetofeatureNokiaPureViewProcameratechnologyistheNokia808PureView,whichgivespeoplethemeanstotakebetterimagesandvideofootagethaneverbefore.NokiaPureViewProturnsconventionalthinkingonitsh
5、ead.Itdispenseswiththeusualscaling/interpolationmodelofdigitalzoomusedinvirtuallyallsmartphones,aswellasopticalzoomusedinmostdigitalcameras,whereaseriesoflenselementsmovesbackandforthtovarythemagnificationandfieldofview.Instead,we’vetakenacompletelynewroad.Theresul
6、t?Unprecedentedcameracontrolandversatility,combinedwithtrulyspectacular-qualityimagesandvideo.Nokia808PureViewsetsnewindustrystandards—itwillgiveyouaround3xlosslesszoomforstills,and4xzoominfullHD1080p.For720pHDvideo,you’relookingat6xlosslesszoom.AndfornHD(640x360)v
7、ideo,anamazing12xzoom!©2012Nokia2PureViewimagingtechnology.Sohowisthispossible?Thestartingpointisasuper-high-resolutionsensor.Thishasanactiveareaof7728x5368pixels,totallingover41Mpix.Dependingontheaspectratioyouchoose,itwilluse7728x4354pixelsfor16:9images/videos,or
8、7152x5368pixelsfor4:3images/videosasisshowninFigure1.Figure1.Theimagecircleandthe16:9and4:3imageareasWhathappensnextdependsonthesettingsandwhethe
