I know this is a very vague question but I’ve kind of understood how image segmentation works in 2D. When it comes to DICOM files, I know that a slice is basically a 3D image made of voxels, where voxel thickness depends on slice thickness, FOV, matrix size etc. This means a slice could be an 3D array whose 3rd dimension depends on voxel thickness.
Eg. if I have a 512x512 matrix size, slice thickness 1.25, voxel thickness 0.25, then that slice would be consist of 512x512x5 voxels??
So, how does the segmentation happen here? Is each layer of one voxel thickness segmented at a time using the 2D principles? From my understanding, voxels are also just assigned an intensity value like pixels. So if we look at a single voxel thick layer it will look like a 2D image. Please correct me if I’m wrong.
Thanking you in advance for your patience to read this.