Author:
Zeng Jianhua,Zeng Wei,Yang Jianrong
Abstract
Abstract
Based on MATLAB, the production and reconstruction of binary Fourier transform computer-generated holograms (CGHs) were realized using Roman III roundabout phase encoding method. The principle, method and step of CGHs were discussed. The digital reconstruction of holograms was completed using CGHs technology, and the simulation of whole holographic recording and reconstruction process was realized by a computer. Additionally, effects of the width of a sampling unit s and the threshold coefficient ef on the production and reconstruction of CGHs were studied, which can provide a theoretical reference for the improvement of the quality of the reconstruction image. Compared with experiments, the result of the CGHs technology is more intuitive and obvious. It is inferred that CGHs have the potential to be used to image encryptions and communications.