Abstract.
Based on fractal properties and spatial auto-correlation, the measures of complexity lacunarity, Moran's I and Geary's C index are defined for 3D image analysis. Their abilities to investigate translational invariance, characteristic length scales, spatial correlation and shapes of 3D micro-structures are demonstrated on proto-typical examples. Finally, using these measures of complexity, 3D images of trabecular bone are analysed. The main findings are that the complexity of the trabecular structure decreases and the plate-like shapes of the trabeculae change to mainly rod-like shapes during bone loss. These results and the proposed measures could have a great impact for medicine and for space exploration.
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Marwan, N., Saparin, P. & Kurths, J. Measures of complexity for 3D image analysis of trabecular bone. Eur. Phys. J. Spec. Top. 143, 109–116 (2007). https://doi.org/10.1140/epjst/e2007-00078-x
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DOI: https://doi.org/10.1140/epjst/e2007-00078-x