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Article #1184Re: TV resolution?
From: Michael Korcuska
Date: Thu, 19 Nov 1992 14:11
Date: Thu, 19 Nov 1992 14:11
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Jonathan Heiliger (jonathan@rahul.net) wrote: : In article <1992Nov12.190043.1@mars.slu.edu> jesse@mars.slu.edu writes: : : >What is the resolution of normal NTSC TVs? : : NTSC is an analog format with a total of 525 lines. However only 485 lines : are active. The most universal is about 648x485 pixels; and NTSC cycles at : approximately 59.94Hz. : It's probably also worth mentioning that the NTSC signal is interlaced so that only every other scan line is refreshed each 60th of a second. It takes two cycles to refresh the whole image, which gives 30 frames per second. Film and SECAM and PAL (I think) have a frame rate of 24 fps. Michael
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Newsgroups: comp.multimedia Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!mp.cs.niu.edu!uxa.ecn.bgu.edu!news.ils.nwu.edu!aristotle.ils.nwu.edu!korcuska From: korcuska@aristotle.ils.nwu.edu (Michael Korcuska) Subject: Re: TV resolution? Message-ID: <1992Nov19.141143.15559@ils.nwu.edu> Sender: usenet@ils.nwu.edu (Mr. usenet) Nntp-Posting-Host: aristotle.ils.nwu.edu Organization: The Institute for the Learning Sciences X-Newsreader: Tin 1.1 PL5 References: <Bxn4Jt.K2p@rahul.net> Date: Thu, 19 Nov 1992 14:11:43 GMT Lines: 16