help > Got bugs when doing MultiFiberTrack
Oct 10, 2011  02:10 AM | Hanbo Chen - the university of georgia
Got bugs when doing MultiFiberTrack
Hi, All
 
I am a freshmen to this area. I got some problem when I tried to perform MultiFiberTrack on a hardi dataset. I followed the tutorial Tractography with q-ball and PASMRI.
 
Every thing is OK by following the tutorial untill I came to the command in PAS Tractography
sflutgen -infofile ${DSID}_CalibData.info -outputstem ${DSID}_PAS${REID}_LUT -pdf watson < ${DSID}_CalibDataPAS${REID}_PDs.Bdouble
 
And I got following exceptions:
Oct 9, 2011 10:13:37 PM data.ExternalDataSource initFileInput
INFO: reading data from standard input
Exception in thread "main" java.lang.RuntimeException: numerics.SVD_Exception: no convergence in 30 dsvdcmp iterations
 at numerics.RealMatrix.pseudoInv(RealMatrix.java:1029)
 at numerics.RealMatrix.pseudoInv(RealMatrix.java:1059)
 at apps.GenerateMFR_LUT.fitLine(GenerateMFR_LUT.java:653)
 at apps.GenerateMFR_LUT.main(GenerateMFR_LUT.java:840)
Caused by: numerics.SVD_Exception: no convergence in 30 dsvdcmp iterations
 at numerics.RealMatrix.dsvdcmp(RealMatrix.java:937)
 at numerics.RealMatrix.svd(RealMatrix.java:729)
 at numerics.RealMatrix.pseudoInv(RealMatrix.java:1024)
 ... 3 more
 
It's my first time to use this software. Most of the coefficients followed the ones in the tutorial except image size and bgthresh. RE is 5. I am wondering if anyone can help me with this issue.
Thank you.

Threaded View

TitleAuthorDate
Got bugs when doing MultiFiberTrack
Hanbo Chen Oct 10, 2011
Hanbo Chen Oct 14, 2011