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. Author manuscript; available in PMC: 2015 Dec 23.
Published in final edited form as: IEEE Trans Med Imaging. 2013 Jul 4;32(11):2022–2033. doi: 10.1109/TMI.2013.2271707

Fig.2.

Fig.2

Pdf reconstruction error maps for slice 25 of subject B. a, b, c and d: At acceleration R=3, Dictionary-FOCUSS yielded 10.7% error in 13 min, the PCA method resulted in 11.2% error in 13 sec, PINV(K-SVD) had 10.7% RMSE in 6 sec, and PINV(PDF) obtained 10.7% error in 15 sec. e, f, g and h: At R=5, the four dictionary-based methods yielded 12.3%, 12.8%, 12.2%, and 12.2% RMSE. i, j, k and l: At R=9, the reconstruction errors were 13.8%, 14.8%, 13.9%, and 13.9% for Dictionary-FOCUSS, PCA, PINV(K-SVD), and PINV(PDF), respectively.