External Email - Use Caution Hello FreeSurfer Developers, > > I'm attempting to run longitudinal segmentation of hippocampal subfields by > using the development version of FreeSurfer, but for some of my subjects I get > the following error: > > ******************* > Global iteration 3 > ******************* > > ***** Estimating subject-specific atlas ***** > L-BFGS > Verbose: 0 > MaximalDeformationStopCriterion: 1e-10 > LineSearchMaximalDeformationIntervalStopCriterion: 1e-10 > MaximumNumberOfIterations: 1000 > BFGS-MaximumMemoryLength: 12 > Subject atlas deformation, step 1 of 400 > Did one deformation step of max. 0.38685 voxels in 7.733 seconds > > minLogLikelihoodTimesPrior = > > 1.0297e+05 > > Subject atlas deformation, step 2 of 400 > Error using kvlGEMSMatlab > /autofs/space/panamint_005/users/iglesias/software/freesurfer/GEMS2/kvlAtlasMe > shDeformationOptimizer.cxx:327: > itk::ERROR: AtlasMeshDeformationLBFGSOptimizer(0x2b53b9427df0): search > direction is not a descent direction! > > Error in kvlStepOptimizer (line 11) > Error in SegmentSubfieldsT1Longitudinal (line 1169) > > > Does anyone have any thoughts on how to trouble-shoot this one? > > 1) FreeSurfer version: freesurfer-x86_64-unknown-linux-gnu-dev-20180426 > 2) Platform: CentOS Linux release 7.4.1708 (Core) > 3) uname -a: Linux bcmhari-hpc12 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 > 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux > > > > Thanks, > Wayne
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