[ITK] [ITK-users] object orientation detection

[Dženan Zukić]

 Hi Majid,

we have moved to discourse <https://discourse.itk.org/> forum. Reposting
your question there might yield more answers.

Finding orientation of an arbitrary object depends a lot on the shape of
the object and the surrounding background image content.

There is a 2D
<https://itk.org/Doxygen/html/classitk_1_1BinaryThinningImageFilter.html>
and 3D <http://www.insight-journal.org/browse/publication/181>
skeletonization filter.

You might try objectness
<https://itk.org/Doxygen/html/classitk_1_1HessianToObjectnessMeasureImageFilter.html>
and vesselenss
<https://itk.org/Doxygen/html/classitk_1_1Hessian3DToVesselnessMeasureImageFilter.html>
filters.

Regards,
Dženan


On Fri, Mar 2, 2018 at 10:20 AM, Majid M. Sadeghi via Insight-users <
insight-users at itk.org> wrote:

> Dear All,
>
> I have a 3D object which is located in an arbitrary position and
> orientation in the space. My goal is to roughly find the orientation of the
> object.
>
> To achieve that, I think I need a descriptor of the object to define it.
> For that descriptor I am thinking maybe a skeleton of the object will work,
> since my object’s shape is a specific shape with certain twists and corners.
>
> After having the descriptor I need to be able to find the orientation of
> the descriptor. And for this I am thinking I might be able to use certain
> relationships of points located on the skeleton, with each other or with
> the origin of the space.
>
> So my questions are:
>
> 1. Is there a better method to do this? (Finding the orientation of an
> object)
>
> 2. Is there a method in VTK/ITK to extract the skeleton of an object?
>
> 3. Is there any other descriptor available in VTK/ITK which might be
> helpful?
>
> Thanks.
>
> The ITK community is transitioning from this mailing list to
> discourse.itk.org. Please join us there!
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