Generation of integrated binary Fresnel hologram for multiple images

Abstract

This paper proposes a method for representing multiple, three-dimensional images in a single binary digital Fresnel hologram. First, jittered sampling is applied to each image. Second, a Fresnel hologram is generated to represent the sampled images so that each of them will occupy a different area on the focal plane. Finally, the Fresnel hologram is binarized with sign-thresholding. When the binary hologram is illuminated with an on-axis reference plane wave, each source image will be reconstructed at their designated position that is separated from the others. The use of jittered sampling is effective in preserving the shaded region in the images, which otherwise would be lost after the hologram is binarized with sign-thresholding, as well as suppressing the aliasing images.

Integrating multiple images in a sampled phase-only hologram

“…Similar to Ref. [16], all of the reconstructed images are occupying different locations and visible at the same time. Herein, we propose a new method for integrating multiple images so that the aforementioned problems mentioned in Refs.…”

“…Such a possibility has been explored in Ref. [16], with which angular multiplexing is adopted to store multiple images in a single amplitude-only hologram. A brief outline of the method is given as follows.…”

“…Herein, we propose a new method for integrating multiple images so that the aforementioned problems mentioned in Refs. [16][17][18] can be overcome. No angular multiplexing is needed for multiple-image storage.…”