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From: gnu@hoptoad.uucp (John Gilmore)
Newsgroups: comp.protocols.misc,rec.video
Subject: HDTV versus Europeans
Message-ID: <2329@hoptoad.uucp>
Date: Wed, 24-Jun-87 21:06:41 EDT
Article-I.D.: hoptoad.2329
Posted: Wed Jun 24 21:06:41 1987
Date-Received: Fri, 26-Jun-87 07:10:08 EDT
References: <637@faline.bellcore.com> <478@its63b.ed.ac.uk>
Followup-To: rec.video
Organization: Nebula Consultants in San Francisco
Lines: 24
Xref: mnetor comp.protocols.misc:99 rec.video:1291

[Followups to rec.video only, please.]

In article <637@faline.bellcore.com> karn@faline.UUCP writes:
> >                                 Japanese companies have led the way by
> >developing a complete line of compatible, working, high quality video
> >components. You can buy their stuff off the shelf right now.
> >                              "Can't have that", the Europeans replied. "It'd
> >be too hard to scan-convert back to our existing 625-line 50-Hz formats".
> >And everybody went home without an international standard.
> 
In article <478@its63b.ed.ac.uk>, gdmr@its63b.ed.ac.uk (G Ross) writes:
> I can only assume that either that you have never watched scan-converted
> broadcasts, or that you are not prone to attacks of sea-sickness.

This sounds like a misdirected attack.  There may well be problems in scan-
converting American NTSC to European PAL.  It does not follow that there will
be the same problems scan-converting Japanese HDTV to PAL.  In particular,
I would assume that moving from a high resolution system to a lower resolution
system would make it easier to produce a good quality picture.  (NTSC to
PAL goes from 525 to 625 lines, requiring things to "stretch".)  If anyone
knows the technical details of scan conversion artifacts, post it here.
-- 
{sun,ptsfa,lll-crg,ihnp4,ucbvax}!hoptoad!gnu	       gnu@ingres.berkeley.edu
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