Video Asylum

Its the compression stupid

24.82.175.211

Jade East

In Reply to: RE: Enjoyed Reading This For Comparisons Between Formats posted by Robertc88 on August 29, 2007 at 07:14:43

It's the compression the HD you watch at home is highly compressed HD. The worst thing to try and compress is noise it changes every frame and eats up bandwidth like a hungry little demon. Fast pans and subtle shadows will show where the math falls apart noise on top of this will be a challenge. HD and Blueray are good but the potential for better is there.

Think that uncompressed HD video takes 190 MBps and BlueRay has a max of 40 MBps. Unfortunately I think that at full 40 MBps. it would lead to an hour of video taking up about
150 Gigs of space.

Follow Ups:

DVD was fairly tolerable for quite a while despite the even greater compression. - oscar 05:17:37 08/30/07 (0)
Current HD media gives you more efficient video compression codecs plus more space and bandwidth for the compressionist to work with. Good enough for a lot a people to consider the result "transparent" to the Master video tape (Hah !).

When a better HD format comes out, I'll come a looking. I doubt it's going to happen for quite a while. And when it does, it might be too good. I suspect the Studios will hesistate to release perfect digital copies of their movies to the public.
I'm not calling anyone in particular stupid (NT) - Jade East 22:52:42 08/29/07 (0)
NT

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