Interlaced. Progressive. What is it? in Horror Tech Forum

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Interlaced. Progressive. What is it?

Author	Comment
MYST0	Interlaced. Progressive. What is it?	Lead	[-]
Sep 14 11 1:10 AM Reply Quote More My Recent Posts	I'm going to sound like a dummy, but I never got a good explination to interlaced vs progressive. I am ashamed to say I don't know anything about it. I take it progressive is better for some reason. I have progressive and interlace settings on my DVD recorder and I really do not know what to do with them.
PJAceto		#1	[-]
Sep 14 11 4:01 AM Reply Quote More My Recent Posts	Interlaced means that the picture is scanned in two frames. The image is displayed every other line for the first frame, then the missing lines are displayed in the second frame. This is done with CRTs because the phosphor does not maintain the image for the time it takes to scan the entire screen. The image at the top would begin to fade by the time the bottom was scanned. Progressive means that the lines of the image are displayed in order. LCDs and other non-phosphor displays don't suffer from the fading image problem during the scan.
CapnDunsel		#2	[-]
Sep 14 11 11:07 AM Reply Quote More My Recent Posts	with interlace, you sometimes get "jaggies" or "stairs" (like the pixels are blocky). I think you dont get that with progressive, so that's part of it's merit over interlaced. FYI people usually de-interlace (and/or de-telecine) interlaced video for online streaming/videosharing. PC monitors prefer progressive, and will sometimes display black lines ("combing") if video is interlaced.
MYST0		#3	[-]
Oct 14 11 3:19 AM Reply Quote More My Recent Posts	OK. I think I get it. Progressive is better. Thanks guys!

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