title: Improvement of gray-scale representation of horizontally scanning holographic display using error diffusion.
abstract: Horizontally scanning holography can enlarge both screen size and viewing zone angle. A microelectromechanical-system spatial light modulator, which can generate only binary images, is used to generate hologram patterns. Thus, techniques to improve gray-scale representation in reconstructed images should be developed. In this study, the error diffusion technique was used for the binarization of holograms. When the Floyd-Steinberg error diffusion coefficients were used, gray-scale representation was improved. However, the linearity in the gray-scale representation was not satisfactory. We proposed the use of a correction table and showed that the linearity was greatly improved.
authors: Yuji
authors: Y
authors: Matsumoto
authors: Yasuhiro
authors: Y
authors: Takaki
mesh_terms: D000465:Algorithms; D006696:Holography / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods* / Q000706:statistics & numerical data; D055620:Optical Phenomena