1、NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 611464 Premiredition Firstedition 199805 Camrasvido(PAL/SECAM/NTSC) Mthodesdemesure Partie4: Fonctionsautomatiquesdescamrasvido etdescamscopes Videocameras(PAL/SECAM/NTSC) Methodsofmeasurement Part4: Automaticfunctionsofvideocamerasand camerarecord
2、ers Numroderfrence Referencenumber CEI/IEC611464:1998Numrosdespublications Depuisle1erjanvier1997,lespublicationsdelaCEI sontnumrotespartirde60000. Publicationsconsolides Lesversionsconsolidesdecertainespublicationsde laCEIincorporantlesamendementssontdisponibles. Parexemple,lesnumrosddition1.0,1.1e
3、t1.2 indiquentrespectivementlapublicationdebase,la publicationdebaseincorporantlamendement1,etla publicationdebaseincorporantlesamendements1 et2. Validitdelaprsentepublication LecontenutechniquedespublicationsdelaCEIest constammentrevuparlaCEIafinquilreflteltat actueldelatechnique. Desrenseignements
4、relatifsladatede reconfirmationdelapublicationsontdisponiblesdans leCataloguedelaCEI. Lesrenseignementsrelatifsdesquestionsltudeet destravauxencoursentreprisparlecomittechnique quiatablicettepublication,ainsiquelalistedes publicationstablies,setrouventdanslesdocumentsci dessous: SitewebdelaCEI* Cata
5、loguedespublicationsdelaCEI Publiannuellementetmisjourrgulirement (Catalogueenligne)* BulletindelaCEI DisponiblelafoisausitewebdelaCEI*et commepriodiqueimprim Terminologie,symbolesgraphiques etlittraux Encequiconcernelaterminologiegnrale,lelecteur sereporteralaCEI60050: VocabulaireElectro techniqueI
6、nternational (VEI). Pourlessymbolesgraphiques,lessymboleslittraux etlessignesdusagegnralapprouvsparlaCEI,le lecteurconsulteralaCEI60027: Symboleslittraux utiliserenlectrotechnique,laCEI60417:Symboles graphiquesutilisablessurlematriel.Index,relevet compilationdesfeuillesindividuelles, etlaCEI60617: S
7、ymbolesgraphiquespourschmas. * Voiradressesitewebsurlapagedetitre. Numbering Asfrom1January1997allIECpublicationsare issuedwithadesignationinthe60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublications includingamendmentsareavailable.Forexample, editionnumbers1.0,1.1and1.2refer
8、,respectively,to thebasepublication,thebasepublicationincor poratingamendment1andthebasepublication incorporatingamendments1and2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunder constantreviewbytheIEC,thusensuringthatthe contentreflectscurrenttechnology. Informationrelating
9、tothedateofthereconfirmationof thepublicationisavailableintheIECcatalogue. Informationonthesubjectsunderconsiderationand workinprogressundertakenbythetechnical committeewhichhaspreparedthispublication,aswell asthelistofpublicationsissued,istobefoundatthe followingIECsources: IECwebsite* CatalogueofI
10、ECpublications Publishedyearlywithregularupdates (Onlinecatalogue)* IECBulletin AvailablebothattheIECwebsite*andasa printedperiodical Terminology,graphicalandletter symbols Forgeneralterminology,readersarereferredto IEC60050:InternationalElectrotechnicalVocabulary (IEV). Forgraphicalsymbols,andlette
11、rsymbolsandsigns approvedbytheIECforgeneraluse,readersare referredtopublicationsIEC60027: Lettersymbolsto beusedinelectricaltechnology ,IEC60417: Graphical symbolsforuseonequipment.Index,surveyand compilationofthesinglesheets andIEC60617: Graphicalsymbolsfordiagrams. * Seewebsiteaddressontitlepage.N
12、ORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 611464 Premiredition Firstedition 199805 Camrasvido(PAL/SECAM/NTSC) Mthodesdemesure Partie4: Fonctionsautomatiquesdescamrasvido etdescamscopes Videocameras(PAL/SECAM/NTSC) Methodsofmeasurement Part4: Automaticfunctionsofvideocamerasand camerarecorde
13、rs CommissionElectrotechniqueInternationale InternationalElectrotechnicalCommission Pourprix,voircatalogueenvigueur Forprice,seecurrentcatalogue IEC1998Droitsdereproductionrservs Copyrightallrightsreserved Aucunepartiedecettepublicationnepeuttrereproduiteni utilisesous quelqueformequecesoitetparaucu
14、n procd,lectroniqueoumcanique,ycomprislaphoto copieetlesmicrofilms,sanslaccordcritdelditeur. Nopartofthispublicationmaybereproducedorut ilizedin anyformorbyanymeans,electronicormechanical, includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. InternationalElectrotechnicalCom
15、mission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/www.iec.ch CODEPRIX PRICECODE R2 611464 CEI:1998 SOMMAIRE Pages AVANTPROPOS 6 Articles 1 Domainedapplication. 8 2 Rfrencesnormatives . 8 3 Termesetdfinitions 8 4 Conditions 10 4.1 Conditionsdenvironnement
16、 . 10 4.2 Conditionsdemesure 10 4.2.1 Eclairement 10 4.2.2 Conditionspourlesprisesdevue . 10 4.2.3 Rglagesdumatriellessai 10 4.2.4 Fiabilitdesrsultatsdemesure 12 5 Mthodedemesuredesfonctionsautomatiques . 12 5.1 Commandedexpositionautomatique . 12 5.1.1 Influenceduniveaudclairement. 12 5.1.2 Influen
17、cedelaluminositmoyenne 16 5.1.3 Rponsedynamique . 22 5.2 Miseaupointautomatique . 24 5.2.1 Estimationdutempsderponse. 24 5.2.2 Prcisiondelamiseaupoint 26 5.3 Balanceautomatiquedesblancs 28 5.3.1 Consquencesdelatempraturedecouleurdelclairement . 28 5.3.2 Caractristiquesdynamiquesdelabalanceautomatiqu
18、edesblancs . 34 AnnexeA(normative) Spcificationdelamiredesuivi 38 Figure1Circuitdemesurepourdterminerlinfluenceduniveaudclairement. 14 Figure2Circuitdemesurepourdterminerlinfluencedelaluminositmoyenne 18 Figure3Formedondedunelignepour B =27%. 20 Figure4Formedondedunelignepour B =77%. 20 Figure5Forme
19、dondedunelignepour B =9%. 20 Figure6Rponsecaractristique(1) 22 Figure7Rponsecaractristique(2) 22 Figure8Circuitdemesuredutempsdemiseaupoint 24 Figure9Circuitdemesuredelabalanceautomatiquedesblancs . 30 Figure10Blocdeconversiondetempraturedecouleuretsaspcification 32 FigureA.1Spcificationdimensionnel
20、ledelamiredesuividegrandedimension 38611464IEC:1998 3 CONTENTS Page FOREWORD 7 Clause 1Scope 9 2Normative references. 9 3 Termsanddefinitions . 9 4Conditions 11 4.1Environmental conditions. 11 4.2 Conditionsofmeasurement 11 4.2.1Illumination. 11 4.2.2Shooting conditions 11 4.2.3 Settingsoftheequipme
21、ntundertest. 11 4.2.4 Reliabilityofmeasuredresults 13 5 Methodofmeasurementofautomaticfunctions. 13 5.1 Automaticexposurecontrol 13 5.1.1 Dependencyonilluminationlevel 13 5.1.2 Dependencyonaveragebrightness 17 5.1.3Dynamic response 23 5.2 Automaticfocusing 25 5.2.1 Assessmentoffocusingresponsetime .
22、 25 5.2.2Focusing accuracy 27 5.3 Automaticwhitebalance 29 5.3.1 Dependencyoncolourtemperatureofillumination 29 5.3.2 Dynamiccharacteristicsofautomaticwhitebalance 35 AnnexA(normative) Specificationofthetrackingchart 39 Figure1Equipmentarrangementformeasurementofdependencyonilluminationlevel 15 Figu
23、re2Equipmentarrangementformeasurementofdependencyonaveragebrightness 19 Figure3Waveformofahorizontallinefor B =27% 21 Figure4Waveformofahorizontallinefor B =77%. 21 Figure5Waveformofahorizontallinefor B =9% 21 Figure6Typicalresponse(1) 23 Figure7Typicalresponse(2) 23 Figure8Equipmentarrangementforme
24、asurementoffocusingtime 25 Figure9Equipmentarrangementformeasurementofautomaticwhitebalance. 31 Figure10Colourtemperatureconversionblockanditsspecification . 33 FigureA.1Dimensionalspecificationofthelargesizedtrackingchart . 394 611464 CEI:1998 Pages Tableau1CommandedexpositionautomatiqueInfluencedu
25、niveaudclairement 16 Tableau2CommandedexpositionautomatiqueInfluencedelaluminositmoyenne 22 Tableau3MiseaupointautomatiqueEstimationdutempsderponse. 26 Tableau4BalanceautomatiquedesblancsInfluencesurlatempraturedecouleur delclairement . 34 Tableau5Filtresoptiquespourlaconversiondetempraturedecouleur
26、 36 TableauA.1Positionsdespetitscerclesquicentrsetdesmarqueurs. 38611464IEC:1998 5 Page Table1AutomaticexposurecontrolDependencyonilluminationlevel 17 Table2AutomaticexposurecontrolDependencyonaveragebrightness 23 Table3AutomaticfocusingAssessmentoffocusingresponsetime 27 Table4Automaticwhitebalance
27、Dependencyoncolourtemperatureofillumination. 35 Table5Opticalfiltersusedforconversionofcolourtemperature. 37 TableA.1Positionsofequicentredsmallcirclesandtrianglemarkers 396 611464 CEI:1998 COMMISSIONLECTROTECHNIQUEINTERNATIONALE _ CAMRASVIDO(PAL/SECAM/NTSC) MTHODESDEMESURE Partie4:Fonctionsautomati
28、quesdescamrasvido etdescamscopes AVANTPROPOS 1) LaCEI(CommissionElectrotechniqueInternationale)estuneorganisationmondialedenormalisationcompose delensembledescomitslectrotechniquesnationaux(ComitsnationauxdelaCEI).LaCEIapourobjetde favoriserlacooprationinternationalepourtouteslesquestionsdenormalisa
29、tiondanslesdomainesde llectricitetdellectronique.Aceteffet,laCEI,entreautresactivits,publiedesNormesInternationales. Leurlaborationestconfiedescomitsdtudes,auxtravauxdesquelstoutComitnationalintressparle sujettraitpeutparticiper.Lesorganisationsinternationales,gouvernementalesetnongouvernementales,e
30、n liaisonaveclaCEI,participentgalementauxtravaux.LaCEIcollaboretroitementaveclOrganisation InternationaledeNormalisation(ISO),selondesconditionsfixesparaccordentrelesdeuxorganisations. 2) LesdcisionsouaccordsofficielsdelaCEIconcernantlesquestionstechniques,reprsentent,danslamesure dupossibleunaccord
31、internationalsurlessujetstudis,tantdonnquelesComitsnationauxintresss sontreprsentsdanschaquecomitdtudes. 3) Lesdocumentsproduitsseprsententsouslaformederecommandationsinternationales.Ilssontpublis commenormes,rapportstechniquesouguidesetagrscommetelsparlesComitsnationaux. 4) Danslebutdencouragerluni
32、ficationinternationale,lesComitsnationauxdelaCEIsengagentappliquerde faontransparente,danstoutelamesurepossible,lesNormesinternationalesdelaCEIdansleursnormes nationalesetrgionales.ToutedivergenceentrelanormedelaCEIetlanormenationaleourgionale correspondantedoittreindiqueentermesclairsdanscettederni
33、re. 5) LaCEInafixaucuneprocdureconcernantlemarquagecommeindicationdapprobationetsaresponsabilit nestpasengagequandunmatrielestdclarconformelunedesesnormes. 6) LattentionestattiresurlefaitquecertainsdeslmentsdelaprsenteNormeinternationalepeuventfaire lobjetdedroitsdepropritintellectuelleoudedroitsana
34、logues.LaCEInesauraittretenuepour responsabledenepasavoiridentifidetelsdroitsdepropritetdenepasavoirsignalleurexistence. LaNormeinternationaleCEI611464attablieparlesouscomit100C:Appareilsetsous systmesaudio,vidoetmultimdia,ducomitdtudes100delaCEI:Systmesetappareils audio,vidoetmultimdia. Letextedece
35、ttenormeestissudesdocumentssuivants: FDIS Rapportdevote 100C/221/FDIS 100C/227/RVD Lerapportdevoteindiqudansletableaucidessusdonnetouteinformationsurlevoteayant aboutilapprobationdecettenorme. LannexeAfaitpartieintgrantedecettenorme.611464IEC:1998 7 INTERNATIONALELECTROTECHNICALCOMMISSION _ VIDEOCAM
36、ERAS(PAL/SECAM/NTSC) METHODSOFMEASUREMENT Part4:Automaticfunctionsofvideocameras andcamerarecorders FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising allnationalelectrotechnicalcommittees(IECNationalCommittees).TheobjectoftheIECistopromot
37、e internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechnicalcommittees;anyIECNationalCommitteeinterestedinthesubjectdealtwithmay participatein
38、thispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreementbetweenthetwo organizations. 2) Theformalde
39、cisionsoragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinterestedNationalCommittees. 3) Thedocumentsproducedhavetheformofrecommendationsforinternationaluseandarepublishedinthef
40、orm ofstandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstransparentlytothemaximumextentpossibleintheirnationalandregionalstandards.Any divergencebetweenthe
41、IECStandardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtobeinconformitywithoneofitsstandards. 6) Attentionisdrawntothepossibiltythatsomeoftheelementsoft
42、hisInternationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC611464hasbeenpreparedbysubcommittee100C:Audio,video andmultimediasubsystemsandequipment,ofIECtechnicalcommittee100:Audio,videoand multimediasystemsandequipment. Thetextofthisstandardisbasedonthefollowingdocuments: FDIS Reportonvoting 100C/221/FDIS 100C/227/RVD Fullinformationonthevotingfortheapprovaloft
