For NTSC, interlaced is ~60 images/second, deinterlaced is ~30 images/second. PAL is ~50 and 25.
There are 2 basic options; keep one field and modify the second to fit it or modify both fields.
Oh, you're doing PC-only playback? In that case, yes, you can keep the original framerate.
I guess that also applies to progressive mode displays.
Well, even that's silly. In that case you'd end up with 50% of your data being interpolation, not actual source.
I think you're combining the concepts of deinterlacing and decombing.
As long as your source is clean and a progressive original, decombing is a great idea. Some odd framerates like those of early film can create problem, however. Mixed source or things which have been through multiple processings like some of the Anime or PAL broadcasts of NTSC interlaced versions of film can be real difficult to process.
|