Given a collection of 2D slices which as a whole corresponds to a 3D volume (medical image of an organ), I only take specific slices (i.e. I replace the ones I dont want with zeros) and so, I end up with a 3D matrix of same shape e.g. 64x64x40 and it is "like" if I had an irregular sampling. I now would like to interpolate to have a full 64x64x40 matrix.

I think it looks like a traditionnal upsampling (e.g like if I had these 40-n slices and upsampled with 0s but irregularily. Now I would like to interpolated this irregular upsampling. Any ideas/references? I am having trouble to find.

  • $\begingroup$ Yes it's interesting. Basically it looks like a nonuniform sampling along vertical z direction (assuming, slices parallel to x-y plane). It's also related with missing samples. Medical imaging is an extensive field, with classical CT having a leading role. A lot of literature exist on every aspect of CT. You can search IEEE first. $\endgroup$
    – Fat32
    Sep 9, 2021 at 18:29


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Browse other questions tagged or ask your own question.