Hello Everyone, I’ve been trying to compute centerlines for this geometry using VMTK extension. However, I couldn’t successfully obtain centerlines. Even the networkExtraction failed when I tried to use the stl file of the same geometry reader = vmtkscripts.vmtkSurfaceReader() reader.InputFile…

This model contain 2.8 million points. [image] Centerline extraction may still work but it would take really long time. I would suggest to cut off unnecessary parts in Segment Editor and heavily decimate the exported model in Surface Toolbox. You may ask for further suggestions for dealing with …

Hi @lassoan I wasn’t sure how to select a Start point for such geometry since there are many free ends. Could you please give some suggestions?

If you don’t have any preferred root branch then just choose any larger branch that is connected to most others. Start with a cropped model and apply decimation to have no more than a few ten thousand points. You can then experiment with gradually increasing the region of interest size and tune deci…

Hi @lassoan [image] lassoan: decimation to have no more than a few ten thousand points Thank you very much. I am working on these lines May I ask a few doubts? [image] lassoan: Start with a cropped model I couldn’t exactly understand how to obtain a cropped model. In the segment edi…

[image] Deepa: I couldn’t exactly understand how to obtain a cropped model. In the segment editor I try to use “Scissors” , select operation and shape (circle) required. How should I crop the volume after this step? In one of my previous post, you had mentioned Scissors will only blank the voxle…

@lassoan Thanks a lot for the clarifications. I’ve used the segment editor to extract a really small segment this time (available here ). The initial number of points is 188394. I have reduced by 80 %( started with 95 % initially). The decimated model now has 37602 points. I get the following ou…

Can you share a download link to a model before and after decimation?

Hi @lassoan Please find the model files before and after decimation.

@lassoan I now have the ouput , CenterlineComputationModel , created after centerline computation using the original model (before decimation). [Untitled] I see a problem with holes (created during segmentation).

Centerline computation failed

Support

lassoan (Andras Lasso) June 20, 2020, 9:51pm 11

The new Extract centerline module has now built-in decimation tuned to work well for vessel centerline model preprocessing.

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Centerline computation failed

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