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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: IEEE Trans Med Imaging. 2016 Dec 22;36(4):917–929. doi: 10.1109/TMI.2016.2643684

Fig. 5.

Fig. 5

Covariance matrices under the two hypotheses (top row: defect-absent, bottom row: defect-present) for the six sub-ensembles (the 1st to the 6th columns are corresponding to defect type 1 to 6, respectively) for Tc images at iteration number 5 (4 subsets/iteration) and cutoff frequency 0.1 pixel−1.