backward_color_cassi

colibri.optics.functional.backward_color_cassi(y, ca)[source]

Backward operator of color coded aperture snapshot spectral imager (Color-CASSI)

For more information refer to: Colored Coded Aperture Design by Concentration of Measure in Compressive Spectral Imaging https://doi.org/10.1109/TIP.2014.2310125

Parameters:

  • y (torch.Tensor) – Measurement with shape (B, 1, M, N + L - 1)

  • ca (torch.Tensor) – Coded aperture with shape (1, L, M, N)

Returns:

Spectral image with shape (B, L, M, N)

Return type:

torch.Tensor