Figure 5

The Ronchi target (left) and its 2D Fourier transform. T 1 and T 2 are complex transmission functions. The dots in the Fourier transform plot signify delta-distributions.
The Ronchi target (left) and its 2D Fourier transform. T 1 and T 2 are complex transmission functions. The dots in the Fourier transform plot signify delta-distributions.