Shape and Boundary Similarity Features for Accurate HCC Image Recognition

Figure 7

The process of extracting the boundary similarity features for each nucleus. (a) Two segmented nuclei. (b) The registration nuclei with the same center and direction. (c) The corresponding ellipse templates. (d) 12 boundary points of the ellipses. (e) The determined boundary feature points for each nucleus. (f) A triangle formed by three corresponding different control points named , , and , respectively.

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