title: Imaging after double passage through a random screen.
abstract: The average intensity spectrum is derived for an object illuminated and viewed through the same random screen. This double passage is shown to give an average image that contains diffraction-limited information about the Fourier modulus of the object amplitude.
authors.forename: T
authors.initials: T
authors.lastname: Mavroidis
authors.forename: J C
authors.initials: JC
authors.lastname: Dainty