[Mrtrix-discussion] dwi2response failed to find SH peak

[Rafa X]

Hi Mrtrix expert,
I'm new on mrtrix and I'm trying to run dwi2response (using -grad) but it
has been days in a loop that said "failed to find SH peak!". Below you can
see the output provided by "-info -debug".


dwi2response [INFO]: opening image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"...
dwi2response [DEBUG]: sanitising image information...
dwi2response [DEBUG]: voxel accessor for image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"
initialised with start = 95, strides = [ -1 96 9216 ]
dwi2response [INFO]: opening image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"...
dwi2response [DEBUG]: sanitising image information...
dwi2response [DEBUG]: loading image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"...
dwi2response: uncompressing image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"...
100%
dwi2response [DEBUG]: image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"
loaded
dwi2response [DEBUG]: voxel accessor for image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"
initialised with start = 95, strides = [ -1 96 9216 ]
dwi2response [DEBUG]: image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec_brain_mask.nii.gz"
unloaded
dwi2response [DEBUG]: searching for suitable gradient encoding...
dwi2response [INFO]: found 69x4 diffusion-weighted encoding
dwi2response [INFO]: Diffusion gradient encoding data clustered into 2
shells
dwi2response [DEBUG]: loading image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"...
dwi2response: uncompressing image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"... 100%
dwi2response [DEBUG]: image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz" loaded
dwi2response [DEBUG]: voxel accessor for image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"
initialised with start = 95, strides = [ -1 96 9216 645120 ]
dwi2response: initialising response function...  100%
dwi2response [INFO]: Initial response function is [331.3299255 -81.32884216]
dwi2response: optimising response function..  .    dwi2response [DEBUG]:
voxel accessor for image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"
initialised with start = 95, strides = [ -1 96 9216 645120 ]
dwi2response [DEBUG]: voxel accessor for image
"/home/rr480/Code/KirstieDTI/SUB_DATA/22566/DTI/MRI0/dti_ec.nii.gz"
initialised with start = 95, strides = [ -1 96 9216 ]
dwi2response [DEBUG]: initialising threads...
dwi2response [DEBUG]: launching 1 thread "run thread"...
dwi2response [DEBUG]: launched thread "run thread" [ID 140638269503232]
dwi2response [DEBUG]: waiting for completion of thread "run thread" [ID
140638269503232]...
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
dwi2response [DEBUG]: failed to find SH peak!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.nitrc.org/pipermail/mrtrix-discussion/attachments/20141124/4c9e5ef6/attachment.html>