Pioneer’s new Kuro line of TVs, as well as some from other TV makers, can play movies in 24 frames per second, as they were shot. Shrek the Third ® & © 2007 DreamWorks Animation LLC. All Rights Reserved.
November 27, 2007 by EH Staff
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. With 24p, the thinking is that there’s less processing. Instead of duplicating one frame into two and the next into three (for the 3:2 pulldown), you get a pure 1:1 transfer.
This is a welcome benefit for many video enthusiasts, but many of us won’t see a difference. The 3:2 pulldown processing has become very good and will be better in higher-end video products. Remember: A good picture is largely the result of good processing.
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