Fig. 6. Comparison of reconstruction accuracy of three regularization methods under RPI Geometry with single current dipole.
a. reconstructed electrogram accuracy of λSP, mean CRESO λ, and L-Curve λ. b, reconstructed potential map accuracy of λSP, mean CRESO λ, and L-Curve λ. Cross boxes indicate CC values and striped boxes indicate RE values. Blue, orange, and pink represent mean CRESO method, SP method, and L-Curve method, respectively. n.s., not significant, * P < 0.05, ** P < 10−2, *** P < 10−3, **** P < 10−4, compared to SP method.