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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: IEEE Trans Med Imaging. 2012 Nov 15;32(2):376–386. doi: 10.1109/TMI.2012.2227120

Fig. 1.

Fig. 1

(a) Terrain-like surfaces Si and Sj intersect each (x, y)-column exactly one time. (b) The shape representation Δpqi between neighboring columns p and q on surface Si; and the context representation δpij between surfaces Si and Sj on column p.