Method used in the temporal filter box

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Ramiro
Posts: 8
Joined: Tue Mar 17, 2015 4:19 pm

Method used in the temporal filter box

Post by Ramiro »

Hello, What are the methods used to obtain the Butterworth and Chebyshev filters of temporal filter box?

Regards

nfoy
Posts: 40
Joined: Fri Nov 14, 2014 1:06 pm

Re: Method used in the temporal filter box

Post by nfoy »

Hello
The computation of the coefficients of these filters is implemented in openvibe/contrib/plugins/processing/signal-processing/src/algorithms/ovpCComputeTemporalFilterCoefficients.cpp
Best regards

nat
Posts: 1
Joined: Sat Feb 18, 2017 8:25 pm

Re: Method used in the temporal filter box

Post by nat »

Hi,

are there any explanations for those functions/methods used in the temporal filter calculation?

jtlindgren
Posts: 775
Joined: Tue Dec 04, 2012 3:53 pm
Location: INRIA Rennes, FRANCE

Re: Method used in the temporal filter box

Post by jtlindgren »

Hi,

the temporal filter box and the coefficient computations are components contributed by Guillaume Gibert at INSERM/U821 very very long time ago (before my time, at least 5+ years). There are some comments in the code and I presume that with some signal processing knowledge related to filter construction it would be relatively easily to spot the used approaches. Unfortunately however we don't have more documentation about it than the small box documentation and the code itself. If you can catch the original author he might remember the materials he used.

For convenience, here are the links to the implementation,

https://scm.gforge.inria.fr/anonscm/git ... 47;hb=HEAD
https://scm.gforge.inria.fr/anonscm/git ... 1e;hb=HEAD
https://scm.gforge.inria.fr/anonscm/git ... af;hb=HEAD
https://scm.gforge.inria.fr/anonscm/git ... 91;hb=HEAD

If you find out any answers, we'd appericiate sharing with the forum!


Best,
Jussi

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