B. inversion calculated from the hologram to the image plane
in the way we calculate the diffraction image plane tilt the hologram plane (see Fig. 1), which we define as a computer. process However, it is necessary to perform the diffraction of light hologram of a plane back to tilt the image plane; The inverse process to the computer, in other words, to produce phase only hologram, we have to compute the inverse hologram from plane to plane, starting from the wave propagation in complex plane hologram. and the fractional inverse Fourier transform to calculate the complex and wide-spread spectrum reference plane, we can calculate the complex plane by the coordinated rotation. In the process, the computer will be used to coordinate the first roll, and then make changes to correct the distortion of the sampling grid. But in contrast to the first step we take corrective action to distorted sampling grid in spectral domain, and then we coordinated rotation. Finally, the waves on the complex plane image is obtained by using the inverse operation. FFT, so the sampling period on the plane was not changed, for example, we assume that the distance between two sampling points of discontinuity in the plane of the image. (For simplicity, we only discuss the situation in another dimension), and sampling frequency is above the plane.
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