On Tue, 3 May 2005 [EMAIL PROTECTED] wrote:
Aside from the bandwidth implications, it shouldn't be that difficult, I wouldn't think. The fastest bandwidth of standard HDTV is 1080i, which is 1920x1080x30 = 62.2Mpixels/s. At 8bits/Y, 4bits/Pb, 4bits/Pr, that's 2 bytes/pixel, or 124MBps... roughly 1 gigabit/s for the RAW video. Pretty ugly to deal with that way.On 2 May 2005 at 23:14, Reza Naima wrote:
Is this still true? There are _no_ video capture devices for the above formats?
As far as I'm aware, this is still true. You can get them in the $2500 range, but no "consumer" cards.
I have 3 students working on one as a senior project. I dunno if they'll be successful. They'll research it all summer then begin the design & build it in the fall. It's not trivial. If anyone has any suggestions for the design, pass them along.
Marvin Match U of U Electrical and Computer Engineering Dept.
Are they planning to do some rudimentary (or non-rudimentary like MPEG[24]) compression on it in an FPGA or something? I would think that NUV or RTJPEG could cut it down by 10:1 pretty easily if it could be coded up tight enough to deal with.
Other issues that will be a problem are jitter on the sync signals. You'll probably need to get ahold of the standards for the signal... I believe EIA 770.2 for SDTV and EDTV, and EIA 770.3 for tri-level sync of HDTV.
-Cory
************************************************************************* * Cory Papenfuss * * Electrical Engineering candidate Ph.D. graduate student * * Virginia Polytechnic Institute and State University * *************************************************************************
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