A Study on Performace of Levenberg-Marquardt and CMA-ES Optimization Methods for Atlas-based 2D/3D Reconstruction

2D/3D Reconstruction, Levenberg-Marquardt, CMA-ES, Appearance Model

In this study, we compare the performance of our previously proposed deformable 2D/3D registration approach based on the Levenberg-Marquardt optimization with methods exploiting the CMA and CMSA evolution strategies. The aim of the investigated registration is a reconstruction of a patient-specic 3D bone model from a small set of plain 2D X-ray images, which is achieved by fitting a deformable bone atlas onto the X-ray images. The comparison is focused on the robustness and the speed of the evaluated methods. The results were obtained using a large-scale data set of synthetic X-ray images. We show our method is several times faster in comparison with the approaches based on evolution strategies, while the robustness of the reconstruction is preserved. To speed-up the reconstruction process, certain parts of the registration pipeline are accelerated using graphics hardware. The median error of our proposed method was 1.12mm and the median reconstruction time was 7.2s. The median time reached by the CMA-ES and CMSA-ES methods was 48.5s and 138.5s respectively.