Citation
Platero Dueñas, Carlos and Rodrigo Cordoba, Victor and Tobar Puente, M. del Carmen and Sanguino Botella, Fco. Javier and Velasco Manuel, Olga and Poncela Pardo, Jose Manuel
(2011).
Probabilistic Atlas Based Segmentation Using Affine Moment Descriptors and Graph-Cuts.
In: "14th International Conference, CAIP 2011", 29/08/2011 - 31/08/2011, Sevilla, España. ISBN 978-3-642-23671-6. pp. 144-151.
https://doi.org/10.1007/978-3-642-23672-3_18.
Abstract
We show a procedure for constructing a probabilistic atlas based on affine moment descriptors. It uses a normalization procedure over the labeled atlas. The proposed linear registration is defined by closed-form expressions involving only geometric moments. This procedure applies both to atlas construction as atlas-based segmentation. We model the likelihood term for each voxel and each label using parametric or nonparametric distributions and the prior term is determined by applying the vote-rule. The probabilistic atlas is built with the variability of our linear registration. We have two segmentation strategy: a) it applies the proposed affine registration to bring the target image into the coordinate frame of the atlas or b) the probabilistic atlas is non-rigidly aligning with the target image, where the probabilistic atlas is previously aligned to the target image with our affine registration. Finally, we adopt a graph cut - Bayesian framework for implementing the atlas-based segmentation.