Pseudoscopic imaging in a double diffraction process with a slit
  Pseudoscopic images that keep the continuous parallax are shown to be possible due to a double diffraction process intermediated by a slit. One diffraction grating acts as a wavelength encoder of views while a second diffraction grating decodes the projected image. The process results in the enlargement of the image under common white light illumination. 
Jose J. Lunazzi and Noemi I. Rivera