def sens_reduce(self, x: torch.Tensor,
sens_maps: torch.Tensor) -> torch.Tensor:
return fastmri.complex_mul(fastmri.ifft2c(x),
fastmri.complex_conj(sens_maps)).sum(
dim=1, keepdim=True)
def sens_reduce(x):
x = fastmri.ifft2c(x)
return fastmri.complex_mul(x, fastmri.complex_conj(sens_maps)).sum(
dim=1, keepdim=True)
def sens_expand(self, x: torch.Tensor,
sens_maps: torch.Tensor) -> torch.Tensor:
return fastmri.fft2c(fastmri.complex_mul(x, sens_maps))
def sens_expand(x):
return fastmri.fft2c(fastmri.complex_mul(x, sens_maps))