Michel PETITJEAN wrote: > > Ref: <[EMAIL PROTECTED]> > Jonathan Bailleul <[EMAIL PROTECTED]> asked: > >I would need to integrate C/C++ code for procrustes analysis in my > >programs. Would you know about some implementations that could help me? > > It depends on which kind of Procrustes transformation you need: > - general linear: get a linear system solver > - orthogonal: get a SVD routine > - pure 3D rotation: get a 4*4 eigenvector routine > - pure rotation for dim > 3: I do not know > > Michel Petitjean, Email: [EMAIL PROTECTED] > ITODYS (CNRS, UMR 7086) [EMAIL PROTECTED] > http://petitjeanmichel.free.fr/itoweb.petitjean.html
This is not very clear yet. My practical purpose is to 'align' sets of 2d shapes and later sets of 3d ones (both problems are independent), but my knowledge in maths analysis and statistics is too light for answering directly your question! (As a computer scientist, I did not attend these classes). >From a more global point of view, I would be interested in some "ready to use" source code/library to perform Procrustes analysis (I've heard about implementations named GPA). It seems like a reasonable scheme from the point of view of someone lacking the fundamental notions required to understand how it actually works... But of course I would be very pleased if you could "help me out" in explaining me, even very briefly, some of these notions. In advance, thank you for your patience. -- -------------------------- Jonathan BAILLEUL Doctorant au GREYC Image ISMRA, Universit� de Caen . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
