Better High Def from 24p?

So you know all the high-def terms - 1080p, 720p, 1080i. Well, here's one more to keep your eye on - 24p.

For starters, 24 is a frame rate—or the equivalent of one. The idea is to match the natural 24 frames-per-second rate of film with HDTVs—progressively scanned, hence the “p.” So far, 24p outputs can be found on high-def DVD players.



Some background: Movies are stored on all DVDs in 24 frames-per-second (fps). However, most TVs today display video with a 30- or 60-Hz refresh rate, meaning 30 or 60 frames per second. So some video processing has to be done to convert 24 frames per second to 30 or 60 frames per second. And this is where it gets complicated, because it involves the word “algorithm.”

To convert 24 frames-per-second into 30 or 60 fps, some frames are duplicated in what’s called a 3:2 pulldown.

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[Link: electronichouse.com]