Open AccessFast generation of digital holograms based on warping of the wavefront recording plane
Author(s) -
P. W. M. Tsang,
TingChung Poon
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.007667
Subject(s) - holography , wavefront , image warping , optics , computer science , computer vision , fresnel diffraction , digital holography , object (grammar) , artificial intelligence , physics , diffraction
This paper reports a fast method for generating a 2048x2048 digital Fresnel hologram at a rate of over 100 frames per second. Briefly, the object wave of an image is nonuniformally sampled and generated on a wavefront recording plane (WPR) that is close to the object scene. The sampling interval at each point on the WRP image is then modulated according to the depth map. Subsequently, the WRP image is converted into a hologram. The hologram generated with our proposed method, which is referred to as the warped WRP (WWRP) hologram, is capable of presenting a 3-D object with faster speed as compared with existing methods.