A note on 'A fully parallel 3D thinning algorithm and its applications'
This is an incremental fix for a specific algorithm in image processing, addressing connectivity issues in 3D skeleton extraction.
The paper corrects Ma and Sonka's 3D thinning algorithm, which fails to preserve connectivity in 3D binary images, by introducing new deleting templates that successfully maintain connectivity.
A 3D thinning algorithm erodes a 3D binary image layer by layer to extract the skeletons. This paper presents a correction to Ma and Sonka's thinning algorithm, A fully parallel 3D thinning algorithm and its applications, which fails to preserve connectivity of 3D objects. We start with Ma and Sonka's algorithm and examine its verification of connectivity preservation. Our analysis leads to a group of different deleting templates, which can preserve connectivity of 3D objects.