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timjerman / JermanEnhancementFilter

Jerman's tubular (vessel) and spherical (blob) enhancement filters
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question about coronary atery #4

Closed wujy2015 closed 5 years ago

wujy2015 commented 5 years ago

Hi,

I found this repo is really useful to me. I am working on cardiac imaging. My input image is z512512 contrast CT scan. Do you have any suggestion about how to filter out coronary artery vessel? Any suggestion to the parameter setting?

Best,

timjerman commented 5 years ago

Hi,

please take a look at example_vesselness2D.m where vessels are enhanced in 2d images. For your case you should start by adjusting the scales according to your vessel size and try various taus between 0.5 and 1, and see which one works best for you.

Regards, Tim

wujy2015 commented 5 years ago

Hi,

Thanks for your advice. Just curious, why not example_vesselness3D.m? but 2d?

Best,

timjerman commented 5 years ago

I misunderstood the 'z512512' and thought that you have a 2d image. You should definitely look at example_vesselness3D.m if you have a 3d image.

Regards, Tim

wujy2015 commented 5 years ago

Hi,

Thanks Tim! I am wondering if you have python or c++ version of this code?

Best,

timjerman commented 5 years ago

Unfortunately, I didn't have the time to implement the python and c++ implementations yet. Hopefully, I will manage to do it sometimes in the future.

wujy2015 commented 5 years ago

Hi Tim,

If my input 3d volume spacing is [0.25; 0.468; 0.468] (in mm), and my vessel diameter is ranging from 0.5-6.0 mm, how do I calculate sigma and tau value?

Best

timjerman commented 5 years ago

Please read https://github.com/timjerman/JermanEnhancementFilter/issues/3 to get your answers.