Evaluation of Digital Halftoning Techniques for Computer Generated Holograms

Katsuhisa HIROKAWA, Kazuyoshi ITOH, and Yoshiki ICHIOKA

Novel computer generated holograms based on the digital halftoning technique are proposed. The influence of four different halftoning patterns on a reconstructed image is numerically and experimentally investigated. We used the phase-optimization technique to eliminate the influence of speckle patterns and quantization errors.