From: "Hemon Dey"
Subject: Re: Digital Video
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Tue, 29 Oct 2002 12:35:44 +1300
NNTP-Posting-Date: Tue, 29 Oct 2002 12:35:40 NZDT
5000 frames/s seems like a very fast camera, your application must be
extremely quick if you want that sort of speed. I'm sure you know that TV is
normally 25 frames/s. I doubt that you will find a kit to do what you intend
on doing, as I'm assuming you probably want 600x400 resolution (8 bit depth
for 256 colour)- which means high bandwidth data transfers to FIFOs and fast
RAM on board your rugged pack with a bus controller capable of operation at
that speed, probably a DSP. Are you sure that 5000 fps is what you need?
Simple calculation will give 1.92Mbits per frame, and that's coming at you
at 9.6Gbits/s (for 5000 fps) ... yikes ..!!!
For 320x240 resolution ... that's 3 Gbits/s.
"Doug Hortvet" wrote in message
> I want to build a digital video system that will be able to store the
> output of a small CCD and download to a PC at a later time.
> The system must be light, rugged, battery powered, able to withstand
> shock and moderate G forces, and not too expensive.
> Would like to capture video data for a max. of ~15 sec. at a shutter
> speed of ~5,000 frames / sec.
> Audio would be nice, bit not essential.
> Are their kits or do-it-yourself instructions available - preferably
> Any and all assistance is greatly appreciated.
> Thanks in advance!