MantisBT - ITK
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IDProjectCategoryView StatusDate SubmittedLast Update
0004934ITKpublic2007-04-25 18:172007-07-05 13:02
ReporterLuis Ibanez 
Assigned ToLuis Ibanez 
PriorityurgentSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Resolution Date
Sprint
Sprint Status
Summary0004934: HessianRecursiveGaussian bug in computation of diagonal
DescriptionThe computation of the diagonal element in the Hessian matrix results in a double smoothing of that axis, and the lack of smoothing in one of the orthogonal axis.
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Notes
(0007474)
Luis Ibanez   
2007-04-25 18:18   
This was pointed out by Andreas Keil in the users list:
http://public.kitware.com/pipermail/insight-users/2007-April/022019.html [^]
(0007476)
Luis Ibanez   
2007-04-25 18:27   
A fix has been committed to the repository
http://www.itk.org/cgi-bin/viewcvs.cgi/Code/BasicFilters/itkHessianRecursiveGaussianImageFilter.txx?root=Insight&sortby=date&r2=1.5&r1=1.4 [^]

we still need to verify the correctness of the spacing factor applied to the second derivative values at the end.
(0007993)
   
2007-07-05 13:01   
Ivan Macia confirmed that the current version works properly:
http://public.kitware.com/pipermail/insight-users/2007-July/022794.html [^]
(0007994)
Luis Ibanez   
2007-07-05 13:01   
Ivan macia created a new bug on this issue:
0005292
(0007995)
Luis Ibanez   
2007-07-05 13:02   
Ivan Macia confirmed that the current version is working properly:
http://public.kitware.com/pipermail/insight-users/2007-July/022794.html [^]