3D Femur Reconstruction Using X-Ray Stereo Pairs
In this paper, we present a 3D reconstruction method for the shape of the proximal femur using pairs of 2D radiographs. The femur shape reconstruction from a small number of images is a challenging task but it is desired as it lowers both the acquisition costs and the radiation dose compared to tomography. In this paper we investigate the reconstruction of the 3D proximal femur surface without any prior acknowledge and using a limited number of 2D images. The proposed method uses a contour points coordinates and compares three different distances to find the best matching between 2D point pairs. The impact of varying the angles between the selected images on the reconstructed 3D shape is tested. Obtained results show that it is possible to rebuild the proximal femur shape from a limited number of radiographs.
KeywordsStereo reconstruction contour matching proximal femur
- 6.Whitmarsh, T., Humbert, L., De Craene, M., Del Rio Barquero, L.M., Frangi, A.F.: Reconstructing the 3D Shape and Bone Mineral Density Distribution of the Proximal Femur From Dual-Energy X-Ray Absorptiometry. IEEE Transactions on Medical Imaging 30(12) (2011)Google Scholar
- 14.Meshlab, http://meshlab.sourceforge.net