[SciPy-user] Scipy + Vision = LabView ?

Matthieu Brucher matthieu.brucher@gmail....
Sun Nov 4 05:58:15 CST 2007


>
> > What do you mean by that. Reaction to the changes as they happen, a bit
> > like in labview. I think enthought's pacakage would be the one to look
> > at, as a reactive interaction with the user was one of their design
> > goals.
> What I mean, is for "realtime" control loops.
> Let's say I sample data at something like 20 kHz,
> want to perform some calculations on it,
> display it and feed the manipulated data back to my hardware,
> how am I going to let the data flow:
> - sample by sample, much too slow
> - chunking, that will work, but do these environments support that ?
> I do the latter in Scipy, but with a Delphi GUI ;-) , that works quit
> well.
> In the radio world there seems to be a even much faster approach (real
> time demodulation).
>

This needs, IMHO, a special package. Usual algorithms are not realtime
capable.
Real-time arises when there is a time notion, and this needs the use of
chunks and thus a special interface. For instance in audio, the standard is
hard to use, and there are a lot of pitfalls when implementing a host that
respects the different latencies.

Matthieu

-- 
French PhD student
Website : http://miles.developpez.com/
Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92
LinkedIn : http://www.linkedin.com/in/matthieubrucher
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