[PD] fast cam
Hans-Christoph Steiner
hans at at.or.at
Thu Oct 22 20:16:32 CEST 2009
On Oct 22, 2009, at 11:43 AM, chris clepper wrote:
> On Thu, Oct 22, 2009 at 11:31 AM, cyrille henry <ch at chnry.net> wrote:
> well, this was on osX, so it was not on my computer.
> i'm using only linux...
> but, quicktime add few sec of latency, so it was not usable in RT.
> we used it only for none realtime stuf + a DV cam for real time.
>
>
> You might find that to be the case with most high speed cameras.
> Above a certain rate they are intended for slow motion playback
> later and not real time use. Cameras that record hundreds or even
> thousands of frames per second use special RAM on the camera to
> store a few seconds and then download the frames using network or
> USB connections.
If its for tracking applications, any of the video tracking
installations that I have been involved in have used Black&White
security cameras with a visible light filter. Those cameras are
analog and about 150-300€. Then you need to get a analog capture card
though. That could be a Canopus or anything that provides low noise
and high framerate.
.hc
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