[opendtv] Re: 720P = 540i ?

  • From: Tom Barry <trbarry@xxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Wed, 04 May 2005 03:32:52 -0400

Jeroen Stessen wrote:

> But, the Generalized Sampling Theorem, like any Super Resolution 
> scheme, depends on there being aliasing (in this case vertical-
> temporal aliasing) in the individual fields. If there were no 
> aliasing then all fields would indeed carry the same information, 
> and there can be no gain from combining information from 
> different fields (apart from noise reduction). De-interlacing 
> must attempt to resolve the aliases and come up with the original 
> image. 

Okay, I agree, and feel better now without having to understand 
the Generalized Sampling Theorem. ;-)

- Tom
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