The goal of this work was to find a new parametric model suited to the representation of three-dimensional (3D) bone microarchitecture that can be used as a prior model in tomographic reconstruction or image segmentation. For this purpose, Markov random fields (MRFs) are well adapted. Bone microarchitecture is typically organized as a pseudoperiodic arrangement of parallel plates with a given thickness (/spl sim/ 100 /spl mu/m), and spacing (/spl sim/ 700 /spl mu/m). As standard Ising MRFs could not represent the complexity of bone, we investigated energy functions based on the design of a neighborhood system including local and distant interactions. The parameters of this MRF model were related to the standard morphometric parameters of bone microarchitecture.
A prior model for bone microarchitecture reconstruction with a very limited number of projections
IEEE International Conference on Image Processing 2005 ; 3 ; III-609
2005-01-01
234215 byte
Conference paper
Electronic Resource
English
A Prior Model for Bone Microarchitecture Reconstrution with a Very Limited Number of Projections
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