We've done some work with uncompressed HD conferencing which might be relevant: http://ultragrid.east.isi.edu/
Colin On 8 Mar 2007, at 21:14, Brian Corrie wrote: > Hi John, > > Interesting... Does anyone know anything about SDI HD capture > cards. We are looking at HD as well (but no direct experience yet) > and the trick seems to be to get video off of the camera avoiding > the onboard encoding of the video, which often adds significant > latency (which is not good for AG of course). Does anyone know if > the SDI out of this camera either has onboard hardware encoding (so > low latency) and/or whether the SDI out is uncompressed video (I > don't know anything about SDI other than that it is a broadcast > oriented standard). Since this is a video conferencing camera one > would assume the SDI is raw video (it looks like it base on my > reading). So once one gets it out of the camera how does one get it > to the computer... There must be an HD SDI capture card available. > > We are looking at the Sony HDR-HC7 prosumer HD camcorder as a > possibility. They aren't available yet, but any day now... They > have HDMI out, which is uncompressed video. There is a HDMI capture > card that can handle raw uncompressed HD video at 1080i available > from Black Magic that looks promising... The camera is around $1500 > and the card is $250. > > http://www.blackmagic-design.com/products/intensity/ > > We are going to be purchasing this pair as soon as the camera is > available, so I will let everyone know how this works out. If it > does work its a pretty inexpensive HD solution! > > Cheers, > > Brian > > > John I Quebedeaux Jr wrote: >> Someone asked me about this camera for HD use on the AG: http:// >> www.picturephone.com/products/sony_evi_hd1.htm >> Anyone have any experience with it? I'm wondering if it was used, >> how to best "capture" it into a system for use on the AG... >> interest in using HD is high here. I'm more concerned about >> logistical issues with high resolution images on displays that >> don't have that much "resolution" space - particularly if several >> sites are involved. >> -John Q. >> -- >> John I. Quebedeaux, Jr.; Louisiana State University >> Computer Manager LBRN; 131 Life Sciences Bldg. >> e-mail: jo...@lsu.edu; web: http://lbrn.lsu.edu >> phone: 225-578-0062 / fax: 225-578-2597 > -- Colin Perkins http://csperkins.org/
