Video kamere
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Prispeval: mazi
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sreda, 21. november 2007 |
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1CCD oziroma 3CCD označuje število slikovnih tipal, vgrajenih v kamero. Tako imenovane 1CCD kamere, ki so v amaterskem razredu v večini, imajo eno slikovno tipalo za zajem vseh barv. 3CCD na drugi strani pomeni, da se v kameri nahajajo tri slikovna tipala, pri čemer vsako od njih skrbi za zajem zgolj ene barve iz RGB (rdeča, zelena, modra) spektra. Na ta način dobimo boljšo barvno reprodukcijo in običajno tudi večjo ostrino.
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Prispeval: mazi
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sreda, 21. november 2007 |
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A video camera is a camera used for electronic motion picture acquisition, initially developed by the television industry but now common in other applications as well. The earliest video cameras were those of John Logie Baird, based on the electromechanical Nipkow disk and used by the BBC in experimental broadcasts through the 1930s. All-electronic designs based on the cathode ray tube, such as Vladimir Zworykin's Iconoscope and Philo T. Farnsworth's Image Dissector, supplanted the Baird system by the 1940s and remained in wide use until the 1980s, when cameras based on solid-state image sensors such as CCDs (and later CMOS active pixel sensors) eliminated common problems with tube technologies such as burn-in and made digital video workflow practical.
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