Hausdorff Distance

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1

Hello!
I compute Dice and Hausdorff Distance, you can see the result. So, I know that Dice similarity ranged from 0 to 1. How Hausdorff distance was ranged? Consequently, how to interpret this result. Any explanation will be helpful. Thanks!mmexport1568627962647

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Hausdorff distance is millimeters.

Here’s the wikipedia page for the Hausdorff distance that explains the concept with a helpful figure

Here is the doxygen page from the Plastimatch Hausdorff algorithm with equations (this is what the module uses, need to scroll down a bit)
http://plastimatch.org/doxygen/classHausdorff__distance.html

By the way this last link is referenced from the module documentation
https://www.slicer.org/wiki/Documentation/Nightly/Modules/SegmentComparison

It is generally a good idea to look at the documentation, as many times you will find useful information there.

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Thank!Emoji

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on a related note…does anyone have any information on whether the plastimatch Hausdorff or DICE calculations have been validated against any other viable option?

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Yes, we validated it against analytic solids prior to using it to score the MICCAI 2015 H&N Grand Challenge. That means comparing translated and resized cubes, spheres, and cylinders, and comparing against the analytic solution.

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Thanks Greg - are there any publications or links to details available anywhere?
We’d like to use slicerRT to assess AI contouring quality in a research project.

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Hi John. I checked, but that information was not included in the paper. I guess you could cite as “Personal communication”. Sorry.

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Thanks for checking Greg. Much obliged.