Re: [tech-3d] Digest Number 49

[Andrew Woods <A.Woods@xxxxxxxxxxxxxxxxxx>]

Hi Marcus,

Thanks for your informative post to tech-3d.
Good to see you're making progress with digital 3D video capture.

BTW: if your video card won't support interlace you can simulate
interlace if you have a set of shutter glasses which support line
blanking.  There are a couple of sets of such glasses on the market
which provide this - including (I think) the H3D cruiser.

Keep up the good work!

Cheers,
Andrew.

> Message: 1
>    Date: Wed, 13 Dec 2000 10:28:10 -0000
>    From: "Marcus Warrington" <marcusw@xxxxxxxxx>
> Subject: RE: Subject: shutter glasses / 3d video workstation
> 
> Hi Boris, Alan
> 
> I also have been "playing" around with Digital 3D video. I use a Pinnacle
> DC10+ capture card (use MJPEG compression  and costs about 160 uk pounds..
> probably about the same in dollars) on a Celeron 466 m/c with a 20gig
> 7200rpm
> Maxtor DiamondMax drive. I've made a 9 gig partition for video capture and
> editing,
> although at around a gig for every 5-10 minutes its nowhere near enough. One
> of the
> biggest problems with PC based video is the silly 2gig limit on .avi file
> sizes, if
> you need more than this you need to do multiple captues (NT increases this
> limit to
> 4 gig). Using a program like VirtualDub or AV_IO automates this process by
> capturing to multiple .avi files as it needs to. Of course if you use an
> expensive
> capture card that uses hardware compression in MPEG2 format anyway then this
> files size issue won't effect you. Only problem is that MPEG formats are
> notoriously
> difficult to edit as you don't have absolute control over where you can cut
> (since you can only edit on an I frame, not a P or B)
> 
> I've edited (if needed) this captured Field-Sequential video (from a Nuview)
> and
> then encoded it in Mpeg2 format (MPEG 1 is no good because it doesn't
> support
> field interlacing), burnt to a CD and then played back on my standalone DVD
> player.
> Problem with sticking with interlace encoding is that it wont play back in
> 3D on my
> PC (because the card/monitor don't have interlace modes).
> 
> Another thing is to convert the captured F-S video into over/under format
> (using
> Premier plugin) and then playback using my Wicked3D glasses (which have a
> line
> doubler) on the PC. This gives full screen, flicker free PC display, but no
> good for
> TV. problem with this approach is that in order for it to work (because of
> timing issues)
> Its very dependant upon the resolution used and the size of the black band
> between
> top and bottom images.
> 
> There is also a purpose built 3D video player available at
> 
> http://mysak.umbr.cas.cz/~husakm/Public/Win3dVideo/Win3dStereoscopicVideoPla
> yer.htm
> 
> The same chap also has a very informative guide to making your own digital
> stereo-video
> movies in DVD quality for playing on computers at
> 
> http://staff.vscht.cz/~husakm/stereopcvideo.html
> 
> 
> Merry Christmas
> 
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