Sparse Parallel MRI Based on Accelerated Operator Splitting Schemes

Figure 10

The performance comparisons of AM and FBOSP for the second-order TGV-based SparseSENSE model when the undersampling factors for data 1, data 2, and data 3 are 10, 6, and 4, respectively. (a)–(c) Relative error versus CPU time of data 1, data 2, and data 3.

(a) Data 1

(b) Data 2

(c) Data 3