The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "Douglas R. Hortvet, Jr."
Subject: Re: Digital Video
Date: Tue, 29 Oct 2002 06:45:16 -0600
Organization: Internet America (using Airnews.net!)
Abuse-Reports-To: abuse at airmail.net to report improper postings
NNTP-Posting-Time: Tue Oct 29 06:44:21 2002
NNTP-Posting-Host: !`@>j1k-W?DionE (Encoded at Airnews!)
X-Newsreader: Forte Agent 1.8/32.548
Thank you for your reply - as you perhaps could tell, I have little to
no knowledge about how to proceed with such a project.
The application I have for the digital video is a model rocket.
A friend provided information via the following:
Data rates in the GB/sec range would appear to be beyond what I want /
need to do.
Any specific recommendations on how to proceed - such as hardware to
use and building instructions?
One way would be to buy a digital cam corder and extract the internals
- however, that may not be a very economical method.
Thanks for your comments - any more are greatly appreciated.
"Hemon Dey" wrote:
>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!
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup