Try the IMP series, specifically BigFix6 which averages landmarks over a baseline. All you need is one landmark out of a symmetric set (from left or right side). This 'half' specimen can be back-reflected to create a symmetric image. It does all your specimens at the same time.
see: http://www3.canisius.edu/~sheets/morphsoft.html Good luck, Stephanie Pierce On Wed, December 5, 2007 9:10 am, morphmet wrote: > I a m working on human skulls fossiles. Therefore there are many missing > points and I decided to replace the bilateral points by the symetric > (right<->left) points. (Of course this does not solve the problem when > the missing points have no symetric and when both symetric are missing.) > I am working on 3D data and found only morpheus to partially answer my > problem: > 1) For each individual I construct the symetric by changing the sign of > one coordinate (x, y or z) > 2) I import each individual and its symetric to Morpheus then do a gpa > of those 2 images (individual and its symetric) > 3) I use the consensus, unscaled, for the further work (gpa, pca > etc...with the R shapes library of Ian Dryden) on all my skulls > Therefore, I am working on completely symetric skulls because all > symetric points (right and left) are averaged. > I did this procedure one by one, which is a little bothering and working > like a donkey. This was possible with my 100 skulls used in my master > degree, but no more now with hundreds of Pan, Gorilla, Homo etc... > I am now looking for an automatic procedure to do this job. Do anyone > know a software that could help ? > > Thank youy for your answers > > Stéphane BOUEE, Paris, France > [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > -- > Replies will be sent to the list. > For more information visit http://www.morphometrics.org > > -- -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
