摄影摄像基础教案

theprincipleofsimplifiedEIAofconstructionprojectsintheregion.Intermsofland,linkedtotheimplementationofurbanandruralconstructionlandincreaseanddecrease,replacementindicatorsforpriorityareasproject.Charges,intotheprojectsofwater,electricity,administrativechargesandpreferentialpolicies.Intheareaoftaxation,andsettledinareasofindustryanditsproductioncompany,within5yearsafterthecompletionoffiscalincentivestoenterprises.Intermsoffinancing,integrationofland,tax,financialandotherresources,andconstruct"Governmentcredit+businesscredit"creditsystem,establishmentofmarketization,commercializationandmodernizationoftheinvestmentandfinancingplatform;effectiveBank-enterprisedocking,encouragesprivatecapitalintothePark,toraiseindustrydevelopmentfund.5,optimizetheenvironmentandserviceindustries.Tocreate"policylowlands,Highlands,integrityofserviceland,developmentland"asthegoal,tooptimizetheareaunderdevelopmentenvironment.Alladministrativelawenforcementdepartmentstoappointafull-timepersonnelstationedinareasdedicatedtocoordinatingandsolvingproblemsassociatedwithbusinessesinthissector.Whentherearesubstantialissues,sectorleadersarrangedtopersonallyintervene,in-person,in-personpushtangibleareabuildingagreenlight,easyline.Tofurtherreduceandstandardizeadministrativeexaminationandapprovalitems,simplifyexaminationandapprovallinks,improveefficiency;accordingtothe...　Sincetheeducationalpracticeofthemasslineoftheparty,himselfseriouslyintheeducation,practicalcontrolcentral"eightrules"andopposing"thefourwinds"andpracticing"threeSuns",andcheckthespiritofJiaoYulu,ideology,solicitopinionsbasedonoutstandingproblemscheckedswing,carefulanalysisandreflection.Willnowcheckreportisasfollows:first,adherencetotheparty'spoliticaldiscipline,eightinthecentralprovision,changethestyleofthebasicsituationof1,incompliancewiththeparty'spoliticaldisciplines.　　Conscientiouslyabidebytheparty'spoliticaldiscipline,abidebytheConstitutionandtherulesandregulationsoftheparty,inthepolitical,ideologicalandmaintainhighlyconsistentwiththeCPCCentralCommitteeontheaction,thereisnoviolationoftheparty'spoliticaldisciplineproblems.2,intheimplementationofthecentralauthoritiesoftheeightprovisions.Improvingresearch,improvingresearchmethods,buttherearelessgrass-rootsunits,primaryfirst-handaninadequategraspoftheproblem,whichistobestrengthenedinthefuture.Second,construction,strictlyinaccordancewiththeprovisionstostreamlineandimprovethequalityofmeetingsoftheConference.Third,streamliningfilebriefs,cultureinvolvesallaspectsofpropagandaandideology,sometimesduetothepracticalneedsofinventionnotifications,thisareaneedsfurthertheprincipleofsimplifiedEIAofconstructionprojectsintheregion.Intermsofland,linkedtotheimplementationofurbanandruralconstructionlandincreaseanddecrease,replacementindicatorsforpriorityareasproject.Charges,intotheprojectsofwater,electricity,administrativechargesandpreferentialpolicies.Intheareaoftaxation,andsettledinareasofindustryanditsproductioncompany,within5yearsafterthecompletionoffiscalincentivestoenterprises.Intermsoffinancing,integrationofland,tax,financialandotherresources,andconstruct"Governmentcredit+businesscredit"creditsystem,establishmentofmarketization,commercializationandmodernizationoftheinvestmentandfinancingplatform;effectiveBank-enterprisedocking,encouragesprivatecapitalintothePark,toraiseindustrydevelopmentfund.5,optimizetheenvironmentandserviceindustries.Tocreate"policylowlands,Highlands,integrityofserviceland,developmentland"asthegoal,tooptimizetheareaunderdevelopmentenvironment.Alladministrativelawenforcementdepartmentstoappointafull-timepersonnelstationedinareasdedicatedtocoordinatingandsolvingproblemsassociatedwithbusinessesinthissector.Whentherearesubstantialissues,sectorleadersarrangedtopersonallyintervene,in-person,in-personpushtangibleareabuildingagreenlight,easyline.Tofurtherreduceandstandardizeadministrativeexaminationandapprovalitems,simplifyexaminationandapprovallinks,improveefficiency;accordingtothe...　Sincetheeducationalpracticeofthemasslineoftheparty,himselfseriouslyintheeducation,practicalcontrolcentral"eightrules"andopposing"thefourwinds"andpracticing"threeSuns",andcheckthespiritofJiaoYulu,ideology,solicitopinionsbasedonoutstandingproblemscheckedswing,carefulanalysisandreflection.Willnowcheckreportisasfollows:first,adherencetotheparty'spoliticaldiscipline,eightinthecentralprovision,changethestyleofthebasicsituationof1,incompliancewiththeparty'spoliticaldisciplines.　　Conscientiouslyabidebytheparty'spoliticaldiscipline,abidebytheConstitutionandtherulesandregulationsoftheparty,inthepolitical,ideologicalandmaintainhighlyconsistentwiththeCPCCentralCommitteeontheaction,thereisnoviolationoftheparty'spoliticaldisciplineproblems.2,intheimplementationofthecentralauthoritiesoftheeightprovisions.Improvingresearch,improvingresearchmethods,buttherearelessgrass-rootsunits,primaryfirst-handaninadequategraspoftheproblem,whichistobestrengthenedinthefuture.Second,construction,strictlyinaccordancewiththeprovisionstostreamlineandimprovethequalityofmeetingsoftheConference.Third,streamliningfilebriefs,cultureinvolvesallaspectsofpropagandaandideology,sometimesduetothepracticalneedsofinventionnotifications,thisareaneedsfurther发包人指定专人负责协调施工中的有关事宜，并监督施工进度、安全与文明施工。发包人对承包人施工中违规操作有权做好处理决定或经济处罚。streamlining.Fourarestandardvisits,exceptasrequiredtoparticipateintraining,nootheractivity.Fiveistoimprovenewsreporting,forpropagandaworkstrictlyaccordingtotheregulations.Sixisstrictlyyourpresentationpublishedstrictlyaccordingtotheregulations.　　Sevenisstrictlythrift,requiredtheuseofvehiclesandofficespaceandcorporatehospitality.3,changethestyle.　　Propagandaandideologicalworkofthenewsituationandnewrequirementsofthenewtasks,haddonealotoffruitfulwork,hasmademanyachievements,butfurtherclosertothegrassroots,closetoreality,closetothemassesandalsoinadequateinnovationmustcontinuetoimprove.Second,the"fourwinds"someoutstandingissues1,opposeformalism.Onetheoryisthathedidn't,withlessclosecontact.Theoreticalstudyofconsciousnessisnothighenough,systemperformanceisnotstrongenough;morepassivelearning,activelearningfewgeneralitiesandlearnmore,delvingintoless.Especiallybasedonrationalthinkingonmajorissues,applyingtheorytoguidetheworkdoneisnotgoodenough,notreallyunderstandandgraspthespiritandessenceofthescientificOutlookondevelopment,didnottrulyachievemastery,toapply,toacertainextent,affectthedevelopmentandimplementationofideasandinitiatives.Second,workarrangements,andlesssupervision.Propagandaandideologicalworkistheobjective,whichneedstokeepthecontinuityeffortsdeployed,butstressedintheworktime,lesssupervision.Forexample,colorweekendsinthesummertheatricalactivities,citysquareperformances,urgingtownships,communitiesandruralareasshowstheimplementationisinadequate,insufficientculturalaneducationalroletoplay.Thirdbaseenough,mastergrass-lessreal.Propagandaandideologicalworkinthenewsituationofcharacteristicsandregularityofenough,deepenoughforgrass-rootspublicopinionDynamicssurvey,forgrass-rootstypicallydriveless.Forexample,ruralcultureteamactive,...I'mnotactivelytaketheinitiativetotakeup,thelackofspiritofdaringto,resultinginsomejobhadalotofpower,butnotangibleresults.Third,innovation,lackofmotivation.Emancipationdidnotend,innovationdoesnotexist.　　Inpracticalwork,notyourhead,previousworkexperience,lackofinnovationinitiatives,studyonthecharacteristicsofpropagandaandideologicalworkunderthenewsituationthrough,gripongrassrootsideologicaltrendsandchangesarenotdeep,topromotenewinitiativesandexplorenewmethodsofideologicalandculturalworkisnotmuch,andsomelackofrelevanceandtimeliness.4,discipline,lowering,andhardworkarelacking.Whileworkingandenterprisingspiritdown.Norealsolutiontotreatyourselfright,correctlytreatpasthonors,theircomplacency,andworktoseetheirscoresmore,lesscheckinghisownshortcomings,liketolistentothepraise,satisfiedface,onlinepromotion,therearetypical,andlackofhighstandardsandstrictrequirements,theeffectisreal.Secondharddriveless.Onhardand发包人指定专人负责协调施工中的有关事宜，并监督施工进度、安全与文明施工。发包人对承包人施工中违规操作有权做好处理决定或经济处罚。streamlining.Fourarestandardvisits,exceptasrequiredtoparticipateintraining,nootheractivity.Fiveistoimprovenewsreporting,forpropagandaworkstrictlyaccordingtotheregulations.Sixisstrictlyyourpresentationpublishedstrictlyaccordingtotheregulations.　　Sevenisstrictlythrift,requiredtheuseofvehiclesandofficespaceandcorporatehospitality.3,changethestyle.　　Propagandaandideologicalworkofthenewsituationandnewrequirementsofthenewtasks,haddonealotoffruitfulwork,hasmademanyachievements,butfurtherclosertothegrassroots,closetoreality,closetothemassesandalsoinadequateinnovationmustcontinuetoimprove.Second,the"fourwinds"someoutstandingissues1,opposeformalism.Onetheoryisthathedidn't,withlessclosecontact.Theoreticalstudyofconsciousnessisnothighenough,systemperformanceisnotstrongenough;morepassivelearning,activelearningfewgeneralitiesandlearnmore,delvingintoless.Especiallybasedonrationalthinkingonmajorissues,applyingtheorytoguidetheworkdoneisnotgoodenough,notreallyunderstandandgraspthespiritandessenceofthescientificOutlookondevelopment,didnottrulyachievemastery,toapply,toacertainextent,affectthedevelopmentandimplementationofideasandinitiatives.Second,workarrangements,andlesssupervision.Propagandaandideologicalworkistheobjective,whichneedstokeepthecontinuityeffortsdeployed,butstressedintheworktime,lesssupervision.Forexample,colorweekendsinthesummertheatricalactivities,citysquareperformances,urgingtownships,communitiesandruralareasshowstheimplementationisinadequate,insufficientculturalaneducationalroletoplay.Thirdbaseenough,mastergrass-lessreal.Propagandaandideologicalworkinthenewsituationofcharacteristicsandregularityofenough,deepenoughforgrass-rootspublicopinionDynamicssurvey,forgrass-rootstypicallydriveless.Forexample,ruralcultureteamactive,...I'mnotactivelytaketheinitiativetotakeup,thelackofspiritofdaringto,resultinginsomejobhadalotofpower,butnotangibleresults.Third,innovation,lackofmotivation.Emancipationdidnotend,innovationdoesnotexist.　　Inpracticalwork,notyourhead,previousworkexperience,lackofinnovationinitiatives,studyonthecharacteristicsofpropagandaandideologicalworkunderthenewsituationthrough,gripongrassrootsideologicaltrendsandchangesarenotdeep,topromotenewinitiativesandexplorenewmethodsofideologicalandculturalworkisnotmuch,andsomelackofrelevanceandtimeliness.4,discipline,lowering,andhardworkarelacking.Whileworkingandenterprisingspiritdown.Norealsolutiontotreatyourselfright,correctlytreatpasthonors,theircomplacency,andworktoseetheirscoresmore,lesscheckinghisownshortcomings,liketolistentothepraise,satisfiedface,onlinepromotion,therearetypical,andlackofhighstandardsandstrictrequirements,theeffectisreal.Secondharddriveless.OnhardandtheprincipleofsimplifiedEIAofconstructionprojectsintheregion.Intermsofland,linkedtotheimplementationofurbanandruralconstructionlandincreaseanddecrease,replacementindicatorsforpriorityareasproject.Charges,intotheprojectsofwater,electricity,administrativechargesandpreferentialpolicies.Intheareaoftaxation,andsettledinareasofindustryanditsproductioncompany,within5yearsafterthecompletionoffiscalincentivestoenterprises.Intermsoffinancing,integrationofland,tax,financialandotherresources,andconstruct"Governmentcredit+businesscredit"creditsystem,establishmentofmarketization,commercializationandmodernizationoftheinvestmentandfinancingplatform;effectiveBank-enterprisedocking,encouragesprivatecapitalintothePark,toraiseindustrydevelopmentfund.5,optimizetheenvironmentandserviceindustries.Tocreate"policylowlands,Highlands,integrityofserviceland,developmentland"asthegoal,tooptimizetheareaunderdevelopmentenvironment.Alladministrativelawenforcementdepartmentstoappointafull-timepersonnelstationedinareasdedicatedtocoordinatingandsolvingproblemsassociatedwithbusinessesinthissector.Whentherearesubstantialissues,sectorleadersarrangedtopersonallyintervene,in-person,in-personpushtangibleareabuildingagreenlight,easyline.Tofurtherreduceandstandardizeadministrativeexaminationandapprovalitems,simplifyexaminationandapprovallinks,improveefficiency;accordingtothe...　Sincetheeducationalpracticeofthemasslineoftheparty,himselfseriouslyintheeducation,practicalcontrolcentral"eightrules"andopposing"thefourwinds"andpracticing"threeSuns",andcheckthespiritofJiaoYulu,ideology,solicitopinionsbasedonoutstandingproblemscheckedswing,carefulanalysisandreflection.Willnowcheckreportisasfollows:first,adherencetotheparty'spoliticaldiscipline,eightinthecentralprovision,changethestyleofthebasicsituationof1,incompliancewiththeparty'spoliticaldisciplines.　　Conscientiouslyabidebytheparty'spoliticaldiscipline,abidebytheConstitutionandtherulesandregulationsoftheparty,inthepolitical,ideologicalandmaintainhighlyconsistentwiththeCPCCentralCommitteeontheaction,thereisnoviolationoftheparty'spoliticaldisciplineproblems.2,intheimplementationofthecentralauthoritiesoftheeightprovisions.Improvingresearch,improvingresearchmethods,buttherearelessgrass-rootsunits,primaryfirst-handaninadequategraspoftheproblem,whichistobestrengthenedinthefuture.Second,construction,strictlyinaccordancewiththeprovisionstostreamlineandimprovethequalityofmeetingsoftheConference.Third,streamliningfilebriefs,cultureinvolvesallaspectsofpropagandaandideology,sometimesduetothepracticalneedsofinventionnotifications,thisareaneedsfurther发包人指定专人负责协调施工中的有关事宜，并监督施工进度、安全与文明施工。发包人对承包人施工中违规操作有权做好处理决定或经济处罚。streamlining.Fourarestandardvisits,exceptasrequiredtoparticipateintraining,nootheractivity.Fiveistoimprovenewsreporting,forpropagandaworkstrictlyaccordingtotheregulations.Sixisstrictlyyourpresentationpublishedstrictlyaccordingtotheregulations.　　Sevenisstrictlythrift,requiredtheuseofvehiclesandofficespaceandcorporatehospitality.3,changethestyle.　　Propagandaandideologicalworkofthenewsituationandnewrequirementsofthenewtasks,haddonealotoffruitfulwork,hasmademanyachievements,butfurtherclosertothegrassroots,closetoreality,closetothemassesandalsoinadequateinnovationmustcontinuetoimprove.Second,the"fourwinds"someoutstandingissues1,opposeformalism.Onetheoryisthathedidn't,withlessclosecontact.Theoreticalstudyofconsciousnessisnothighenough,systemperformanceisnotstrongenough;morepassivelearning,activelearningfewgeneralitiesandlearnmore,delvingintoless.Especiallybasedonrationalthinkingonmajorissues,applyingtheorytoguidetheworkdoneisnotgoodenough,notreallyunderstandandgraspthespiritandessenceofthescientificOutlookondevelopment,didnottrulyachievemastery,toapply,toacertainextent,affectthedevelopmentandimplementationofideasandinitiatives.Second,workarrangements,andlesssupervision.Propagandaandideologicalworkistheobjective,whichneedstokeepthecontinuityeffortsdeployed,butstressedintheworktime,lesssupervision.Forexample,colorweekendsinthesummertheatricalactivities,citysquareperformances,urgingtownships,communitiesandruralareasshowstheimplementationisinadequate,insufficientculturalaneducationalroletoplay.Thirdbaseenough,mastergrass-lessreal.Propagandaandideologicalworkinthenewsituationofcharacteristicsandregularityofenough,deepenoughforgrass-rootspublicopinionDynamicssurvey,forgrass-rootstypicallydriveless.Forexample,ruralcultureteamactive,...I'mnotactivelytaketheinitiativetotakeup,thelackofspiritofdaringto,resultinginsomejobhadalotofpower,butnotangibleresults.Third,innovation,lackofmotivation.Emancipationdidnotend,innovationdoesnotexist.　　Inpracticalwork,notyourhead,previousworkexperience,lackofinnovationinitiatives,studyonthecharacteristicsofpropagandaandideologicalworkunderthenewsituationthrough,gripongrassrootsideologicaltrendsandchangesarenotdeep,topromotenewinitiativesandexplorenewmethodsofideologicalandculturalworkisnotmuch,andsomelackofrelevanceandtimeliness.4,discipline,lowering,andhardworkarelacking.Whileworkingandenterprisingspiritdown.Norealsolutiontotreatyourselfright,correctlytreatpasthonors,theircomplacency,andworktoseetheirscoresmore,lesscheckinghisownshortcomings,liketolistentothepraise,satisfiedface,onlinepromotion,therearetypical,andlackofhighstandardsandstrictrequirements,theeffectisreal.Secondharddriveless.Onhardand摄影摄像基础 教案 中职数学基础模块教案 下载北师大版¥1.2次方程的根与系数的关系的教案关于坚持的教案初中数学教案下载电子教案下载 第一章节、光和彩色的基本知识教学目的：了解光和色彩的基本知识教学重点：三原色原理教学难点：相加混色法一.彩色光的三要素任何一种彩色光对人眼引起的视觉都可以用色调（Hue）、饱和度（Saturation）、及亮度（Brighness）三个参量来表示，这三个参量称为彩色光的三要素。色调表示颜色的种类。它由作用到人眼的彩色光的光谱功率分布决定。例如红、绿、蓝等都是表示色调。2-1光和彩色的基本知识饱和度表示颜色的深浅程度。即颜色的浓淡或鲜艳程度。高饱和度的彩色光可因掺入白光被冲淡，变成低饱和度的彩色光，颜色变浅。色调和饱和度又总称为色度，它即说明颜色的类别-色调，又说明颜色的浓淡-饱和度。亮度是指彩色光的明亮程度。即对人眼引起亮暗感觉的程度。它与光照强度及物体的反射率有关。亮度反映了光对人眼的刺激程度。二.三基色原理1.自然界中任何一种颜色都可以分解为三种基色。2.任何一种颜色都可以用三种基色合成。3.合成彩色的亮度由三个基色的亮度之和决定；色度由三个基色分量的比例决定。4.三种基色应该是相互独立的。也就是说，三基色的任何一种都不能由另外两种基色混合产生。2-1光和彩色的基本知识三.相加混色法彩色电视采用的，将三种基色光按不同比例相加而获得不同彩色光的方法，称为相加混色法。在彩色电视技术中，采用的三基色为：红、绿、蓝。红光+绿光=黄光红光+青光=白光绿光+蓝光=青光绿光+紫光=白光蓝光+红光=紫光蓝光+黄光=白光红光+绿光+蓝光=白光补色：与基色相加为白色的彩色，称为其基色的补色。红、绿、蓝的补色为青、品（紫）、黄。三基色原理为彩色电视奠定了基础，极大地简化了彩色图像的传输问题。根据三基色原理，先把被拍摄景物的彩色光分解成红、绿、蓝三种基色光，再变换成三个基色电压予以传送。在接收端，用三个基色电压分别控制彩色显像管中红、绿、蓝三种荧光粉的发光量，便可显示出所拍摄景物的彩色。2-1光和彩色的基本知识四.相减混色法在彩色印刷、彩色影片和彩色绘画中采用相减混色法。相减混色法是利用颜料、染料的吸色性质来实现的。在相减混色法中通常选用：青（C）、品（M）、黄（Y）为其三基色，实际运用中还加上黑色（K），称为CMYK颜色模式。青、品、黄等比例混合为黑色。2-1光和彩色的基本知识2-1光和彩色的基本知识加色法与减色法之对比2-1光和彩色的基本知识五.人眼对彩色细节的分辨力人眼对彩色细节的分辨力远低于对亮度（黑白）细节的分辨力。如：当白色背景上刚能分辨出黑色细节直径为1mm时，则在相同条件下,红色背景下的绿色细节要增大到2.5mm、而蓝-绿则要5mm。另:不同色调搭配的彩色其细节的分辨力也不相同2-1光和彩色的基本知识可造成对比的色彩因素:色调饱和度亮度2-1光和彩色的基本知识色调造成对比2-1光和彩色的基本知识饱和度造成对比2-1光和彩色的基本知识亮度造成对比2-1光和彩色的基本知识和谐2-1光和彩色的基本知识2-1光和彩色的基本知识2-2摄像机基本组成与工作原理摄像机自上个世纪三十年代诞生以来，经历了由黑白——彩色、摄像管——电荷耦合器件CCD（ChargeCoupledDevice）、模拟——数字等不同发展阶段。总的趋势是向小型轻量、数字化、智能化方面发展。虽然摄像机的发展使其电子系统愈发复杂精细，但操作调整却愈来愈简单快捷。2-2摄像机基本组成与工作原理一.摄像机的基本组成无论是小巧玲珑的“掌中宝”摄录一体机，还是硕大无比的演播室用摄像机，虽然它们的外形很不相同，但就其工作原理来说却是极为相似的。我们都可以把它们分成如下几个部分：1.光学系统2.光电转换器件3.视频处理电路4.调整与控制5.寻像器6.电源部分摄录一体机则还有信号记录存储、话筒等部分。2-2摄像机基本组成与工作原理第二章节：摄像机的基本原理教学目的：了解摄像机的基本原理教学重点：摄像机基本组成与工作原理教学难点：摄像机的工作原理1.三基色光像的产生摄像机通过镜头选择一定范围的景致，并聚焦形成彩色光学图像，彩色光像由装在机身里的分色棱镜，将其分解成红、绿、蓝（R、G、B）三个单色光像。2-2摄像机基本组成与工作原理2.视频（图像）信号的产生在三个单色光像的成像位置处，分别安置了三个光电转换器件——CCD，它的作用是将光学图像转化成电信号，称为视频（图像）信号。这个视频信号能被电视机转化成人眼可以看到的屏幕光像。特别要说明的是CCD性能指标的高低，是决定摄像机质量最为重要、最为直接的因素，从画面质量上来看，无论是“优良的画面”，还是“不够好的画面”，都可以在CCD中找到最主要的 答案 八年级地理上册填图题岩土工程勘察试题省略号的作用及举例应急救援安全知识车间5s试题及答案 。2-2摄像机基本组成与工作原理3.视频（图像）信号的处理与输出CCD转换出来的电信号，是十分微弱和不完善的，要经过视频信号处理电路的放大校正加工，才能形成符合一定标准的视频（图像）信号输出。4．控制与调整摄像机要能够方便快捷地拍摄出曝光准确、色彩逼真的画面，必要的控制与调整是十分重要的。如对镜头光圈的自动控制、黑白平衡的调整等。2-2摄像机基本组成与工作原理归纳 总结 初级经济法重点总结下载党员个人总结TXt高中句型全总结.doc高中句型全总结.doc理论力学知识点总结pdf ：1.光学系统（组成：变焦距镜头、色温转换片、分色棱镜）作用：成像、色温转换、分光。2.光电转换器件（组成：CCD摄像器件）作用：光电转换。3.视频处理电路（组成：预放器、视频信号处理电路、编码器等）作用：对视频信号进行放大、校正处理；编码输出。2-2摄像机基本组成与工作原理4.调整与控制（组成：黑、白平衡调整、光圈、增益、聚焦调整等）作用：摄像机状态调整和功能控制。5.寻像器（组成：电子取景器、LCDLiquidCrystalDisplay液晶显示屏）作用：取景、回放6.电源部分（组成：电池、交流适配器）作用：为摄像机提供动力。2-2摄像机基本组成与工作原理此外摄录一体机则还有7.信号记录存储部分组成：磁带记录、光盘记录、硬盘记录作用：记录视音频信号。8.话筒组成：机内话筒、外接话筒作用：拾取音频信号。2-3视音频信号与接口第三章节：模拟视频信号与接口教学目的：了解模拟视频信号与接口教学重点：视频信号分类及接口分类教学难点：摄像机的工作原理三基色信号：红（R）、绿（G）、蓝（B）三基色信号。三根电缆输出。接口：BNC（专业）。2．分量信号：亮度信号（Y）和两个色差信号（U/B-Y/Cb、V/R-Y/Cr）这是电视技术的彩色表述空间。三根电缆输出。接口：BNC或RCA（非专业）。3．亮色分离信号：亮度信号（Y）、色度信号（C）。一根多芯电缆输出。接口：Y/C（S-Video）。4．复合信号：彩色全电视信号（Video），亮色复合信号。一根电缆输出。接口：BNC或RCA。5.高（射）频信号：由图像信号（Video）与伴音信号(Audio)调制而得。接口：RF如用有线电视传输，则一根电缆输出。广播级模拟视频标准：大于5M带宽2-3视音频信号与接口2-3视音频信号与接口二.数字视频信号接口1．SDI（SerialDigitalInterface-串行数字接口）有若干种不同码率和标准的串行数字信号，有数字复合与数字分量之区别，一般用于全比特数字设备。接口：BNC。附录：数字分量全比特码率：216Mbps数字分量降比特码率：A.DV：25MbpsB.DVCPRO：25、50、100MbpsC.DigitalBetacam125Mbps广播级数字视频码率标准：大于40Mbps2-3视音频信号与接口2.IEEE1394（Firewire、Ilink、DV）InstituteofElectricalandElectronicsEngineers(美国）电气和电子工程师协会IEEE1394为美国Apple公司1995年开发的计算机串行接口技术。现已广泛应用于数字多媒体、AV设备中。A.传输数据码率：100-400MbpsB.支持热拔插(带电拔插)C.有6针连接器／6芯（单根）电缆和4针连接器／4芯（单根）电缆两种2-3视音频信号与接口3.USB（UniversalSerialBus-通用串行总线)1994年11月Compaq、IBM、Microsoft等公司联合制订的计算机设备接口技术标准。现已广泛应用于数字多媒体、AV设备。USB1.1（发表于1998-9）A.传输数据码率：有1.5Mbps和12Mbps两种B.支持热拔插(带电拔插)C.可为连接设备供电：有100mA和500mA两种USB2.0（发表于1999-4）1999年4月康柏、惠普、英特尔、微软、飞利浦、NEC等公司又联合制订了USB2.0标准。A.传输数据码率：480MbpsB.兼容USB1.12-3视音频信号与接口三.模拟音频接口：1.平衡接口（专业）：Cannon-XLR型、Tuchel2.非平衡接口（非专业）：RCA2.5、3.5和6.5mm话筒插头附录一：四种常用彩色模式归纳总结：四种常用彩色模式1.RGB相加混色法：红绿蓝三基色。2.CMYK相减混色法：青品黄三基色加黑色。3.HSB彩色三要素：色调、饱和度和亮度。4.YUV电视分量信号：亮度信号和两个色差信号。附录二：彩色电视系统传像示意附录三：彩色电视制式第四章节时、摄像机的镜头教学目的：了解摄像机的镜头教学重点：摄像机的镜头分类教学难点：摄像机镜头的工作原理摄像机通过装在其机身上的镜头来拍摄景物。为了使用的方便，摄像机基本都是配备焦距可连续改变的变焦距镜头。变焦距镜头的许多基本参数与特性与定焦距镜头无异，如焦距、光圈、焦点、景深等，故不赘述。需要讨论的是变焦距镜头装在摄像机上的一些特殊问题。2-4摄像机的镜头一．成像尺寸成像尺寸是指光像在CCD芯片上成像的大小，它与所用CCD芯片的大小有关。CCD对角线成像尺寸(宽×高)镜头焦距参考机型2/3〞11.0mm8.8×6.6mm9～143mmAJ-D910WAE1/2〞8.2mm6.6×4.8mm8.5～102mmAJ-D