29 March 2016 Intensity-based femoral atlas 2D/3D registration using Levenberg-Marquardt optimisation
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Abstract
The reconstruction of a patient-specific 3D anatomy is the crucial step in the computer-aided preoperative planning based on plain X-ray images. In this paper, we propose a robust and fast reconstruction methods based on fitting the statistical shape and intensity model of a femoral bone onto a pair of calibrated X-ray images. We formulate the registration as a non-linear least squares problem, allowing for the involvement of Levenberg-Marquardt optimisation. The proposed methods have been tested on a set of 96 virtual X-ray images. The reconstruction accuracy was evaluated using the symmetric Hausdorff distance between reconstructed and ground-truth bones. The accuracy of the intensity-based method reached 1.18 ± 1.57mm on average, the registration took 8.76 seconds on average.
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Ondrej Klima, Ondrej Klima, Petr Kleparnik, Petr Kleparnik, Michal Spanel, Michal Spanel, Pavel Zemcik, Pavel Zemcik, } "Intensity-based femoral atlas 2D/3D registration using Levenberg-Marquardt optimisation", Proc. SPIE 9788, Medical Imaging 2016: Biomedical Applications in Molecular, Structural, and Functional Imaging, 97880F (29 March 2016); doi: 10.1117/12.2216529; https://doi.org/10.1117/12.2216529
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