Research Article

A Nonparametric Shape Prior Constrained Active Contour Model for Segmentation of Coronaries in CTA Images

Figure 8

Comparison of the segmentation results in 2D axial images. (a) and (b) show the resulting segmentation on 2D cross-sectional images randomly taken from dataset number 5, while (c) and (d) are the resulting segmentation illustrated on 2D axial image picked from dataset number 9. The red contour represents the manually delineated reference standards, and the segmentation obtained from the proposed method and localized model are shown as blue and black contours, respectively. Note that these images are upsampled by a factor of 5 in order to increase the in-plane resolution.
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