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arXiv · 2409.04079

Model Fitting and Analysis of the Discrete Swept Skeletal Representation for Ellipsoidal Objects

Mohsen Taheri·Stephen M. Pizer·Jörn Schulz
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Abstract

Statistical shape analysis of quasi-ellipsoidal objects, such as groups of hippocampi, is crucial for advancing medical research by aiding in the diagnosis and understanding of various diseases. This work presents a novel object representation method, termed the Locally Parameterized Discrete Swept Skeletal Representation (LPDSSRep). We discuss the model fitting and analysis techniques for this representation, which rely on boundary division and surface flattening. The quality of the model fitting is assessed based on the symmetry and tidiness of the skeletal structure and the volume of the implied boundary. The power of the method is demonstrated by visual inspection and statistical analysis of a synthetic and an actual data set in comparison with an available skeletal representation.

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Mohsen Taheri, Stephen M. Pizer, Jörn Schulz. 2024-09-06. Model Fitting and Analysis of the Discrete Swept Skeletal Representation for Ellipsoidal Objects. https://arxiv.org/abs/2409.04079

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