Sparse Parallel MRI Based on Accelerated Operator Splitting Schemes

Figure 6

The performance comparisons of the five algorithms for the TV-based SparseSENSE model when the undersampling factors for data 1, data 2, and data 3 are 10, 6, and 10, respectively. (a, b, c) Relative error versus CPU time of data 1, data 2, and data 3. (d, e, f) PSNR versus CPU time of data 1, data 2, and data 3.

(a) Data 1

(b) Data 2

(c) Data 3

(d) Data 1

(e) Data 2

(f) Data 3