[AG-TECH] PAL vs NTSC

[jzeeff at internet2.edu]

PAL is better resolution but if you use the poor quality H.261 codec,
I doubt it will help.

 Quoting Andrew Daviel <andrew at andrew.triumf.ca>:

> On Wed, 19 Feb 2003, Osland, CD (Chris)  wrote:
> 
> > I know it's really bad form to reply to your own mailing, but I
> OK IMO if you discover new facts or find the answer ...
> 
> > As I've mentioned in another thread, we're interested in higher
> > resolution video streams - PAL for starters, XGA would also be
> > nice - and these will presumably require CPU power, presumably
> > in proportion to the area (in pixels).  Therefore, with the
> > current video streams being about 110K pixels and requiring
> > about 1400/20 = 70 MHz, PAL streams (768x576 = 440K pixels
> 
> I wondered if there was any advantage in feeding a bT878 card from
> a PAL camera as against an NTSC one when using Vic.
> The data sheet for the Sony EVI-D100/D100P says 768 x 494 effective 
> pixels for NTSC and 752 x 582 for PAL.
> 
> Probably more trouble than it's worth for us here in North America
> 
> regards
> 
> -- 
> Andrew Daviel, TRIUMF, Canada
> Tel. +1 (604) 222-7376
> security at triumf.ca
> 
> 
>