Fig. 8: Application of DEEP Picker to 2D NOESY and TOCSY spectra.

A, B Selected regions of 2D 1H–1H NOESY of Im7 and C, D 2D 1H–1H TOCSY of mouse urine with picked cross-peaks indicated as circles that are color-coded according to their amplitude (logarithmic scale, see sidebar). DEEP Picker identifies strong and weak cross-peaks, including ones that severely overlap or show multiplet structures due to J-splittings, whose analysis is often challenging for traditional peak pickers.