TRANSMISSION BANDWIDTH REDUCTION OF HOLOGRAPHIC STEREOGRAMS RECORDED IN WHITE LIGHT

Abstract

A three‐step method is described for obtaining holograms of 3D objects illuminated in white light. A horizontal linear array of n lenslets is used to simultaneously photograph a 3D scene. The resulting array of n 2D images is transformed into a thin horizontal strip hologram, using coherent light. Multiple (n) identical copies of this strip hologram are contiguously arranged in a vertical column, resulting in an n × n array of elemental holograms for viewing of the virtual image of the 3D scene. Horizontal parallax is preserved; vertical parallax is sacrificed to reduce the bandwidth required for transmission by a factor n.