[Insight-developers] Direction Validation and Testing

[Luis Ibanez]

Bill,

This sounds great.

Let us know if we can help.


    Luis



--------------------
Bill Lorensen wrote:
> Folks,
> 
> As you can see from recent activity on the list (and the slicer3
> developers' list) there are lots of questions regarding the handling
> of direction cosines (orientations) in itk. We need a rigorous
> approach to document, validate and test the directions, origins and
> spacing of our images, readers, writers and algorithms.
> 
> Since I am to blame for the current implementation of directions in
> ITK, I will set up a wiki page (TBA) that will address this important
> issue.
> 
> Some of the issues we have to address:
> 
> 1) Better documentation of the ITK coordinate system, directions,
> origin and spacing.
> 2) For each ITK readers/writers (aka ImageIO) represent  coordinate
> system, directions, origin and spacing.
> 3) A repository of VALIDATED test data with known meta data:
> coordinate system, directions, origin and spacing.
> 4) A methodology to validate and test the meta data. This methodology
> must include 3rd party (non-ITK) validation of the data.
> 
> and other concerns I am sure.
> 
> Products of this effort should include:
> 
> 1) Unambiguous documentation of ITK's  coordinate system, directions,
> origin and spacing.
> 2) An Insight Journal publication summarizing and documenting this effort.
> 3) Updates to the Insight Users Manual to describe the results.
> 
> Let's discuss this for a few days on the list before I set up the wiki page.
> 
> Bill
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