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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Med Image Anal. 2015 Jul 4;26(1):1–18. doi: 10.1016/j.media.2015.06.009

Figure 1.

Figure 1

Spatial normalization. (a) Coronal view of typical our CT data. (b) Definition of the abdominal normalized space. In spatial normalization, the xyz-translation and xy-scaling are adjusted so that the reference planes are aligned among all the CT data. The z-scaling is not performed because stable image features were not available for the z-scale determination. In addition, strong correlation was not found between the xy- and z-scaling at least for the liver shape. Although only sagittal planes are shown in the figures, coronal planes are similarly defined. See Appendix A for an automated method for the spatial normalization.