Fig. 4.

Electrograms under extreme deformations or noise. a, Four views of sheep uterus; light pink is the uterine geometry segmented from MRI images; dark pink is the discretized uterine geometry from the locations of electrodes placed on the uterine surface. b, Electrograms reconstructed from original body surface potentials from four locations labeled A, B, C, and D in a. c–h, Reconstructed electrograms corresponding to the deformed or noise-contaminated body surface potentials. Deformation extents are at the extreme conditions, and SNR = 12.5 dB.