**comp.graphics.algorithms**

## Subject: **Re: 3D rotation estimate via least squares**

"Jason Grant"

news:pan.2006.05.10.00.26.45.216119@logular.com...

> Thanks for the great response - I had stalled whilst pondering this, but

> your answer will now get me rolling again. Will try and figure out the

> partial derivatives by myself (I'm using quaternions to describe the

> rotations).

Using quaternions is probably a bit simpler. An

issue I failed to point out in my last post is that

not all the components of C[n] are independent.

You need to differentiate with respect to the

independent variables only. It is easy enough

to do this in a quaternion approach.

--

Dave Eberly

http://www.geometrictools.com

Reply

View All Messages in

**comp.graphics.algorithms**

path:

3D rotation estimate via least squares =>Re: 3D rotation estimate via least squares =>Re: 3D rotation estimate via least squares =>

Replies:

Re: 3D rotation estimate via least squares

Copyright © 2006 WatermarkFactory.com. All Rights Reserved.