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Eric Bilodeau November 11th, 2003 02:39 PM

HD suffers less than SD from upconversions because there is more informations to work with but an upconversion is an upconversion, you have to "create" more definition, thus filling gaps with virtual information.

Graeme Nattress November 11th, 2003 02:45 PM

There's a natural viewing size for all film or video. If you screen 16mm too large it looks bad, just as if you screen 35mm and try to get it to fill an IMAX screen, the Imax will make the 35mm look blurry in comparison.

All that moving to a higher resolution DV->HDV->HD->whatever gets you is the ability to view the image larger without it looking bad. It does not however mean that just because you can't blow your DV or HDV up too much that they're inherently blurry - you've just blown them up too much, or you're not viewing them for far enough away.

Heath McKnight November 11th, 2003 02:54 PM

There's a theatre near me that has Odyssey (like Imax) and they run 35 mm in there. Of course, it looks like watching a letterboxed movie on a 4:3 TV, but the movies look great! Probably not as large...

heath (777)

Frank Granovski November 11th, 2003 05:19 PM

Quote:

XL1 is a 3-chip camera, with the pixels offset, so it could have a full resolution of the DV format. If it does not has nothing to do with the chips.
Full playback resolution of miniDV 540 horizontal lines. The XL1 plays back 460 lines. Of, course it has almost everything to do with the chips. Please, get your facts straight, C.T.

Les Dit November 11th, 2003 07:11 PM

I'm willing to accept the argument that when viewed too big, DV will look blury. Right on. It basically translates to line pairs per mm on the viewing screen. Also the distance of the screen from the observer.
But ultimately it's all about matching closer to the human visual system. That can resolve way more than any video system, in observed line pairs per mm of what you are looking at. So the closer you come to that, the 'better' the image will look.
The JVC is more pleasing to look at for lay people because it is another step towards what our everyday vision lets us see.
Put more bluntly, the JVC holds up much better resolution wise than the DV. Soon DV quality will only be accepted for streaming online quality.
As far as edge enhancing , it's not magic. You can't bring out high frequency detail that wasn't there beforehand by sharpening frames. You can only enhance ( exaggerate ) details that are there to start. The blonde girls hair strands for example. The edges of the hairs were a bit over defined, but the individual hairs are there. The DV version has no such single hair detail, and you can't sharpen it to see them again.
I challenge anyone to try, at 1280 size, to bring back the detail.
But I think I'm flogging a dead horse, I think most technical people understand that.
-Les


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