Re: Low pass filter on quaternions

There are open source Wiimote input libraries you could probably take a look
at. AFAICT, those generally use very simple, first-order filter type
approaches.

Sincerely,

jw


--
Americans might object: there is no way we would sacrifice our living
standards for the benefit of people in the rest of the world. Nevertheless,
whether we get there willingly or not, we shall soon have lower consumption
rates, because our present rates are unsustainable.



On Sun, Mar 28, 2010 at 8:32 AM, John McCutchan <[email protected]>wrote:

> Hi,
>
> Each quaternion represents the orientation of an input device. I want
> to remove jitter that comes from holding it in a human hand.
>
> John
>
> On Sun, Mar 28, 2010 at 12:56 AM, Marc B. Reynolds
> <[email protected]> wrote:
> > Also, what do they represent?
> >
> > -----Original Message-----
> > From: Robin Green [mailto:[email protected]]
> > Sent: Sunday, March 28, 2010 8:36 AM
> > To: Game Development Algorithms
> > Subject: Re: [Algorithms] Low pass filter on quaternions
> >
> >
> > Do you want to lowpass the signal, or do you want to fit a smooth
> > curve to the samples?
> > Are the samples regularly spaced?
> >
> > - Robin Green
> >
> >
> >
> > On Sat, Mar 27, 2010 at 7:14 PM, John McCutchan <[email protected]>
> > wrote:
> >> Hi,
> >>
> >> I have a sequence of quaternions and want to filter out any high
> >> frequency changes. I'm wondering if anyone has a paper or some code
> >> for performing a low pass filter on quaternions?
> >>
> >> Thanks,
> >> --
> >> John McCutchan <[email protected]>
> >>
> >>
> >
> ----------------------------------------------------------------------------
> > --
> >> Download Intel&#174; Parallel Studio Eval
> >> Try the new software tools for yourself. Speed compiling, find bugs
> >> proactively, and fine-tune applications for parallel performance.
> >> See why Intel Parallel Studio got high marks during beta.
> >> http://p.sf.net/sfu/intel-sw-dev
> >> _______________________________________________
> >> GDAlgorithms-list mailing list
> >> [email protected]
> >> https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> >> Archives:
> >>
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
> >>
> >
> >
> ----------------------------------------------------------------------------
> > --
> > Download Intel&#174; Parallel Studio Eval
> > Try the new software tools for yourself. Speed compiling, find bugs
> > proactively, and fine-tune applications for parallel performance.
> > See why Intel Parallel Studio got high marks during beta.
> > http://p.sf.net/sfu/intel-sw-dev
> > _______________________________________________
> > GDAlgorithms-list mailing list
> > [email protected]
> > https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> > Archives:
> >
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
> >
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > Download Intel&#174; Parallel Studio Eval
> > Try the new software tools for yourself. Speed compiling, find bugs
> > proactively, and fine-tune applications for parallel performance.
> > See why Intel Parallel Studio got high marks during beta.
> > http://p.sf.net/sfu/intel-sw-dev
> > _______________________________________________
> > GDAlgorithms-list mailing list
> > [email protected]
> > https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> > Archives:
> >
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
> >
>
>
>
> --
> John McCutchan <[email protected]>
>
>
> ------------------------------------------------------------------------------
> Download Intel&#174; Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
> GDAlgorithms-list mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
> Archives:
> http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list
>

------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev

_______________________________________________
GDAlgorithms-list mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list
Archives:
http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list