Patent ID: 8049941

Claim:
Method of compensating of an inhomogeneous brightness perception in a holographical reconstruction of three-dimensional scenes, which consist of object light points, wherein computing means encode modulator cells of a spatial light modulator means with a hologram point data pattern; wherein illuminating means generate multiple bundles of rays, each of which being capable of generating interference with respect to itself, and illuminate a surface of the spatial light modulator means; wherein an array of focusing elements directs the bundles of rays to coincide near to positions assigned to at least one observer's eyes, and wherein light propagation inhomogeneities in edge regions of the focusing elements lead to affected regions on the spatial light modulator means in optical contact with the edge regions of the focusing elements wherein the computing means is configured to perform the steps of defining the modulator cells and corresponding hologram points in the hologram point data pattern which are located in the affected regions determining parameters which describe an extent of light propagation inhomogeneities effects in combination with an expected filtering from an eye pupil of the observer's eye for the modulator cells thus defined estimating on a basis of parameters which local inhomogeneous brightness of the reconstructed three-dimensional scene caused by these affected regions will be perceived by the observer when watching the reconstruction, and correcting corresponding values in the hologram point data pattern such that the reconstructed object light points appear at a correct brightness.