Trabecular bone reconstructions from micro-CT data using discrete tomography
Faculty of Sciences. Physics
s.l. , 2006
Proceedings of SPS-DARTS 2006: the second annual IEEE Benelux/DSP Valley Signal Processing Symposium, Antwerp, Belgium, March 2006
University of Antwerp
Discrete Tomography is a modern research field dealing with the reconstruction of an image from its projections when that image is assumed to have only a small number of gray values. When this assumption is (approximately) valid, a high quality reconstruction can be computed from only a small number of projections. In this paper, discrete tomography is applied to reconstruct the trabecular bone system of a mouse from a small number of micro- CT projections. The set of gray values in the reconstruction is restricted to only three values (background, soft tissue, and bone). Our results show that by using discrete tomography, a much better reconstruction of the trabecular bone structure can be obtained than by thresholding a continuous reconstruction from the same number of projections.