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Re: Averaging quaternions [message #38635 is a reply to message #38629]

Thu, 18 March 2004 20:17

One Usenet Poster
Messages: 1
Registered: March 2004

Junior Member

Graham wrote:
> Does anyone know if it is possible to take an average of regularly
> sampled quaternions to get a mean orientation (i.e. a mean rotation
> matrix)? I seem to recall there being a trick involved but beyond
> re-normalizing the resuling (averaged) quaternion, I cannot remember
> what it is.
>
> Cheers,
> Graham

Graham:

Maybe you could try the SLERP (Spherical Linear IntERPolation) method to
average the quaternions. Here's a link that describes the SLERP method:
http://www.theory.org/software/qfa/writeup/node12.html

Good luck,
OUP

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[Message index]

		Re: Averaging quaternions By: Arnold Neumaier on Fri, 19 March 2004 08:24
		Re: Averaging quaternions By: John Lansberry on Fri, 19 March 2004 07:22
		Re: Averaging quaternions By: John Lansberry on Fri, 19 March 2004 07:14
		Re: Averaging quaternions By: John Lansberry on Fri, 19 March 2004 06:53
		Re: Averaging quaternions By: One Usenet Poster on Thu, 18 March 2004 20:17
		Re: Averaging quaternions By: Craig Markwardt on Thu, 18 March 2004 15:39
		Re: Averaging quaternions By: GrahamWilsonCA on Mon, 29 March 2004 12:45

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