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Fig. 3 | Earth, Planets and Space

Fig. 3

From: Using TNT-NN to unlock the fast full spatial inversion of large magnetic microscopy data sets

Fig. 3

Comparison of SIRM magnetic sources for synthetic MM data of the UMN logo for scenarios 3 (af) and 4 (gl): a, g simulated synthetic SIRM B\(_z\) field in nT calculated from the UMN logo, b, h inverted magnetic sources from the TNT-NN method, c, i inverted magnetic sources from the LH-NNLS method, d, j known magnetic sources used to produce the synthetic MM scan (negative values are difficult to discern as their magnitudes are approximately an order of magnitude less than the positive values), e, k difference between the TNT-NN and known solutions, f, l difference between the LH-NNLS and known solutions. The field of view for each image is 6.7 mm \(\times\) 5 mm, dipole orientation is out of page, and the units of bf and hl are Am\(^2\)

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