最新[精品]電影與電視影像概論-藥學(xué)醫(yī)學(xué)精品資料.ppt

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1、最新[精品]電影與電視影像概論-藥學(xué)醫(yī)學(xué)精品資料電影成像原理1.底片(Filmstock)=鹵化銀化學(xué)粒子2.間隔機(jī)械裝置(intermittentmotion)3.正常速度每秒24格(24f/sec)快門葉片鏡頭Gate片門8/3/20212影片規(guī)格35mm(糎米)其他:65mm,IMAX16mm(糎米)Super8mm(糎米)8mm(糎米)8/3/20213攝像板(感應(yīng)晶片)1.CCD(CoupleChargeDevice)2.CMOS1.CCD片數(shù)愈多,顏色愈真3CCD>1CCD2.CCD呎吋愈大,畫質(zhì)愈好2/3“>1/3”3.CCD畫數(shù)(

2、pixel)愈多,畫質(zhì)愈好500pixel>200pixel8/3/20217電視掃描方式1.Interlacedscanning間隔式掃描+=掃描線愈多,畫質(zhì)愈好1080i>480i8/3/202182.Progressivescanning循序式(漸進(jìn)式)掃描8/3/20219錄影帶攝影機(jī)錄影帶規(guī)格(帶寬)1.Betacam(1/2”)2.Dvcam(1/4”)3.MiniDV(1/4”)8/3/202110SD(StandardDefinition)標(biāo)準(zhǔn)畫質(zhì)480i(640x480)(1)SonyDSR300(2)SonyDSR2508

3、/3/202111HD(HighDefinition)高畫質(zhì)攝影機(jī)1920x10801.HDV(1080i,24p)2.HDCAMCineAlta(1080p,24P)8/3/202112非錄影帶攝影機(jī)(AVCHD,AdvancedVideoCodeforHighDefinition)1.DVD2.Bluray藍(lán)光DVDXDCAM8/3/202113SD記憶卡8/3/202114硬碟8/3/202115傳統(tǒng)類比電視系統(tǒng)以垂直掃描線多寡分為:NTSC525(30f/sec)美國,臺(tái)灣系統(tǒng)PAL625(25f/sec)歐洲系統(tǒng)SECAM819(25f

4、/sec)8/3/202116數(shù)位電視系統(tǒng)(DTV)1.SDTV(StandDefinition)標(biāo)準(zhǔn)畫質(zhì)電視640x480DVD480i480p8/3/202117HDTV(HighDefinition)高畫質(zhì)電視(1)HDready:(1024x768)次高晝質(zhì)720p,1080i(2)FullHD:(1920x1080,1440x1080)完全高畫質(zhì)1080p8/3/202118藍(lán)光(Blu-ray)DVD8/3/202119HDMI(HighDefinitionMultimediaInterface)高畫質(zhì)多媒體傳輸介面8/3/202

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