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Coarse-to-fine multi-resolution hash encoding for implicit full waveform inversion

Wang, Linrong et al.
arXiv (All) · Papers
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geophysics
Implicit full waveform inversion (IFWI) reparameterizes the velocity model with a neural network, but it suffers from spectral bias and requires many iterations to converge. Multi-resolution hash encoding uses a learnable feature grid to recover high wavenumber details at multiscales and provides st
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