This is not directly a Blender question, as it could be solved otherwise, but I'd like to see whether experienced users would do this inside blender and how.
Let's assume I had access to various kinds of 3D scans like CT, MRI, OCT, etc. The overall goal is to extract some part from this scan and turn it into a simple and good looking mesh. A very easy example would be to extract the skeleton from a CT scan. In this case I could
- do a bone segmentation in the CT volume because this works reasonably well
- use the binarized volume data to calculate the surface mesh of the skeleton
- import and simplify the mesh in Blender
Other problems are harder to tackle because tissue or organs might not be easily separate-able from its surrounding with image processing. However, an expert could easily do the segmentation manually or semi-automatic layer by layer.
Question: For these two problems, is there a preferred way about what should be done inside Blender and what not? Are there good tutorials about it?
The second problem is especially interesting since one could trace the structure layer by layer inside Blender, extruding each layer afterwards. However, this could be more tedious than simply doing the segmentation in the images and calculating the mesh like in the first case with e.g. marching cubes/tetrahedrons.