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. Author manuscript; available in PMC: 2019 Jul 23.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2018 Mar 12;10578:105781J. doi: 10.1117/12.2293346

Figure 4.

Figure 4.

Comparison of three samples (a, b and c) imaged on μCT and CBCT and processed with different pre-processing and segmentation methods. First column shows axial view of μCT images with an overlay of a global Otsu’s segmentation. Values of trabecular metrics are also provided. The subsequent columns show the same sample imaged on extremity CBCT and segmented using local thresholding, local thresholding with a global pre-thresholding step, and Laplacian-enhanced local thresholding. To facilitate visual comparison, μCT images were registered to CBCT.