Canon XL1 3CCD TheFundamentals

‐CanbeeitherNTSCorPAL
CD‐ROMFORMATS
‐Notsopopularanymorebecauseoftheweb
‐Higherbandwidththanwebvideo
‐CapableofDVDqualityonfastcomputers
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INTERNETFORMATS
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‐Lessbandwidthsoeverybitofdatahastocount
‐Webvideocanuseeitherreal‐timestreamingmodeorprogressive‐downloadmode
‐Real‐timerequiresspecialisedstreamingserversoftwareandarelimitedinqualitybythebandwidth
availablebetweentheserverandtheenduser.
‐Progressive‐downloadfilesloadfromstandardwebservers,andmaytakealongtimetodownload,
butmayalsoprovidehigherandmorereliablevideoandaudioquality.
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MOBILEDEVICES
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‐Thesedeviceshavesmallscreensandslowprocessors,evencomparedtoalaptopcomputer,butthe
abilitytoplayvideobackonextremelysmallandlightweightdevicescanhavegreatvalue.
‐Mostcompressedvideoformatscanbeplayedonsomemobiledevices,includingAdobe®Flash®
Video,MPEG‐4,Microsoft®WindowsMedia,andRealMedia.Dedicatedmobileformats,likeKinoma,
arealsoavailable.
‐Therearenouniversalformatsorsettingsformobiledevices.Instead,contenthastobeoptimized
forasmallclassofdevicesorevenaparticular���model.Whentheoptimizationissuccessful,theresults
canbegreat.
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TheFundamentals
HUMANSENSES
‐Limitationsinoursensesofsightandhearingmakecompressionpossible
‐Compressiontechnologiestakeadvantageofthestrengthsandweaknessesofhumansensesby
reducingdatathatisn’tlikelytobeperceived.