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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: IEEE Trans Med Imaging. 2013 Apr 30;32(8):10.1109/TMI.2013.2260763. doi: 10.1109/TMI.2013.2260763

Fig. 8.

Fig. 8

Example of a graph column affected by a previous and current refinement operation. (a) A column is affected by two none-overlapping impact regions. (b) A column is affected by two overlapping impact regions.