[Insight-users] Structure Tensor in ITK

[Cory Quammen]

Forgive me for my possible ignorance, but isn't the structure tensor
simply a Hessian matrix? ITK has HessianRecursiveGaussianImageFilter
which can compute a Hessian image:
http://www.itk.org/Doxygen318/html/classitk_1_1HessianRecursiveGaussianImageFilter.html

Cory

On Fri, Jun 4, 2010 at 9:04 AM, Sergio Vera <sergio.vera at alma3d.com> wrote:
> Thanks for the contributions
>
> I'll try to implement it and if the result is half decent, the idea was to
> publish it at the insight journal indeed
>
> Regards
>
> On Fri, Jun 4, 2010 at 2:47 PM, Jeff Donner <jeffrey.donner at gmail.com>
> wrote:
>>
>> On Fri, Jun 4, 2010 at 8:18 AM, Sergio Vera <sergio.vera at alma3d.com>
>> wrote:
>> > I'm in need of calculating the structure tensor (also called second
>> > moment
>> > matrix) of an image, and it seems that there is not a filter to compute
>> > it
>> > in ITK.
>> > I've seen the class itk::TensorRelativeAnisotropyImageFilter and I'm not
>> > sure if it may be related to the structure tensor?
>>
>> I found that there was no structure tensor filter in ITK; perhaps
>> someone could point one out, it was a while since I used ITK. But, in
>> the meantime I hand-rolled my own (plain code, not filter):
>>
>>  http://github.com/JDonner/gabbleduck
>>
>> in gaussian.cpp and pipeline.cpp.
>>
>> It's really too messy to actually recommend to anyone but, it exists
>> if you want to look at it. The names of things should be reasonable at
>> least.
>>
>> Jeff
>
>
>
> --
> Sergio Vera
>
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-- 
Cory Quammen
Center for Computer Integrated Systems for Microscopy and Manipulation (CISMM)
Department of Computer Science
University of North Carolina at Chapel Hill
http://www.cs.unc.edu/~cquammen