Multi-organ Statistical Shape Model Building Using a Non-rigid ICP Based Surface Registration
Jiaqi Wu, Guangxu Li, Tohru Kamiya · Journal of Image and Graphics · 2022
Landmark correspondence is one of the key steps in Statistical Shape Model (SSM) building. In this paper, a non-rigid iterative closest point surfaces registration method is introduced to seek proper corresponded landmarks in the multi-organ surface meshes. Surfaces of four abdominal organs are used in the experiment to build SSM from landmarks corresponded by five different registration strategies. The proposed method of individually non-rigid registration of single organs shows the least errors measured by Hausdorff distance and the best model quality of generalization ability, specificity, and compactness.