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Meir Bar-tal
12-21-2003, 04:47 PM
Many thanks to you all that responded my question (see at the end).
I've summarized the answers in the following and like to further another
request to the forum:
My approach is to use the bone anthropological knowledge to construct
homologous space in which the morphing can take place. This will maximize
the knowledge of the known shape of the bones. For that I need
anthropometric data of the bones (such as (for the tibia) the articular
surface width and length to the bone length ratio (whatever the length
definition is)).

Has anyone had done work on the subject?
Is there such anthropometric data of this nature?

Here is summery of the answers I got up to now:
1. A great source of bone 3D models:
http://www.ulb.ac.be/project/vakhum
and the supported multimode : http://www.tecno.ior.it/multimod/ or similarly
- http://www.tecno.ior.it/VRLAB/researchers/repository/BEL_repository.html .
The following articles where pointed out:
2. "Statistics for 3D Human Body Forms"
(http://www.dh.aist.go.jp/~mochi/pdf/2000-IEA-mochi.pdf).
3. Fitting parametrized polynomials with scattered surface data, L.J.
van Ruijven , M. Beek and T.M.G.J. van Eijden; Journal of Biomechanics -
Volume 32, Issue 7, Pages 715-720 (July 1999)
4. Shape reconstruction for computer assisted surgery based on
non-rigid registration of statistical models with intra-operative point data
and x-ray images - http://www-timc.imag.fr/Laurent.Desbat/theses.html.
5. Some anthropometric data on the tibia shaft on: ANALYSIS OF TIBIAL
CURVATURE, FIBULAR LOADING, AND THE TIBIA INDEX from J.R. Funk - Biodynamic
Research Corporation (USA) - published at this year's IRCOBI conference and
will be published in Traffic Injury Prevention.
6. Some relevant anthropological data was gathered by Mr. Kavi Bhalla
(kavi_bhalla@yahoo.com), contact him if you need it.

Sincerely
Meir Bar-Tal

> Deer all
> I've started a work on reconstruction of the femur and tibia from a
> small cloud of points measured on their surface. I've decided to use
> shape morphing to change a "normal" bone to the measure points. Can
> anyone direct
> me to works done on related subjects?
> I'm looking also for the set of descriptors (shape wise) that best
> describe human tibia and femur diversity over the population and
> methods to estimate
> them.
> Can anyone share tibia and femur 3D models so I can test my algorithm?
>
> Appreciate any help
> Meir Bar-Tal


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