[MINC-users] minctracc with mask: objective function starts at 0.0: what to do?

[Audette, Michel]

Hi folks, 

 

I'd like to try to use some anatomically shaped (and morphologically dilated) masks to refine an affine registration into a piecewise affine registration. I'm seeing however that my objective function with minctracc starts off with a null objective function, for middle ear registration, and therefore produces the same transformation as its starting point. Is it possible to make its computation a bit more sensitive than it is? 

 

Cheers, 

 

Miche

 

Michel Audette, Ph.D.   

Innovation Center Computer Assisted Surgery (ICCAS)   

Semmelweisstraße 14  

Leipzig, Germany  

Phone: ++49 (0) 341 / 97 - 1 20 13  

Fax: ++49 (0) 341 / 97 - 1 20 09