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- Xref: sparky comp.compression:2829 rec.video:9627 rec.video.satellite:3807 rec.video.production:1153
- Newsgroups: comp.compression,rec.video,rec.video.satellite,rec.video.production
- Path: sparky!uunet!usc!cs.utexas.edu!torn!watserv1!hertz.waterloo.edu!elball
- From: elball@sunee.waterloo.edu (Eric Ladd Ball)
- Subject: NBC Olympic coverage - reason
- Message-ID: <Bs2ACw.GBE@watserv1.uwaterloo.ca>
- Sender: elball@hertz.waterloo.edu (Eric Ladd Ball)
- Organization: University of Waterloo
- References: <MONTA.92Jul26181344@image.mit.edu> <1992Jul27.035759.153188@zeus.calpoly.edu>
- Date: Mon, 27 Jul 1992 19:05:20 GMT
- Lines: 13
-
- The reason for the artifacts is quite simple. NBC is using digtal
- full-frame camaras. These are sequential line instead of NTSC interlaced.
-
- PROs:
- 1> Freeze-frame/super-slo-mo are artifact free.
- 2> Easy capture for still-frame printing (ie magazines etc)
- 3> Easy translation to different TV formats (ie PAL) in digital logic.
- (ie throw away 1/6 of the frames for PAL, chop off lines on the top &
- bottom for NTSC)
-
- CONs:
- 1> The artifacts of fast motion everyone has seen. This is caused because
- the interlaced lines appear on sub-sequent fields and look very wierd.
-