Patent ID: 8384973

Claim:
Method for reconstructing a three-dimensional (3D) scene, comprising: encoding the 3D scene, which comprises individual object points, in the form of a computer-generated hologram (CGH) on a light modulator of a holographic display device, illuminating, with at least one light source, the light modulator with coherent light and transforming the light with at least one transformation lens, and controlling, with a processor, control signals for encoding and reconstructing, wherein the reconstruction of the 3D scene is visible from an observer plane within a visibility region, the processor generates a spatial point matrix for defining a position of individual object points in horizontal, vertical and depth directions in a reconstruction volume, and assigns the object points with predetermined intensity and phase values which approximate the 3D scene, a complex-valued wave front is computed for each individual object point within the visibility region, and the intensity values of the object points are multiplied with a visibility function which is assigned to the individual object points, in order to obtain modified wave fronts of the individual object points, which are added so as to form an aggregated modified wave front of the object points, the modified wave front is transformed by a transformation means into a plane of the light modulator in order to compute modified control values for the object points, and control signals are generated in a control means, in order to encode the CGH in the light modulator with the modified control values and to transform it into the visibility region so as to reconstruct the 3D scene.