Re: [Toon-members] tag tag/absorient.h src/absorient.cpp test/sim.cpp

[Pekka Paalanen]

On Sat, 25 Jun 2011 09:12:21 +0000
Gerhard Reitmayr <address@hidden> wrote:

> CVSROOT:      /cvsroot/toon
> Module name:  tag
> Changes by:   Gerhard Reitmayr <gerhard>      11/06/25 09:12:21
> 
> Modified files:
>       tag            : absorient.h 
>       src            : absorient.cpp 
> Added files:
>       test           : sim.cpp 
> 
> Log message:
>       added estimating a similarity transform (se3 + scale) between
> two 3D point sets after Horn

Hi,

I see you refer to Horn. Are you aware of the paper by Shinji Umeyama,
Least-Squares Estimation of Transformation Parameters Between Two Point
Patterns, IEEE TPAMI 13(4), April 1991?

I did not check your code nor which Horn's paper you refer to, but
Umeyama claims to avoid the problem of reflections in comparison to
Horn. IIRC the biggest difference is that Umeyama uses SVD instead of
eigenvalue decomposition.

Just in case you might find it interesting.


Cheers.

-- 
Pekka Paalanen, M.Sc. (Eng.)   LUT/IT, room 6505
doctoral student               http://www.it.lut.fi/project/rtmosaic/
address@hidden          http://www.iki.fi/pq/