Improvement of Viewing-Zone Angle and Image Quality of Digital Holograms
A method to improve the viewing-zone angle and the image quality of a digital hologram is presented. A number of digital holograms of a central object are recorded from the position on the circumference. The holograms are used for a hologram synthesis to improve the image quality from whole viewing-zone angle. The synthesis is achieved by a correlation between a hologram and numerically propagated holograms. The large-sized synthesized digital hologram has a wide viewing-zone angle and less speckles. Some experimental results are shown to confirm our proposed method.
This study was partly supported by a research granted form The Murata Science Foundation.