A new technology of one-shot digital holography is developed in order to record the complex-amplitude hologram for color three-dimensional images instantaneously. Off-axis RGB digital holograms are recorded with a color CCD at once, and three or four in-line holograms with different phases are obtained by spatially sampling the recorded holograms and by interpolating the sampled hologram data. RGB complex-amplitude holograms can be extracted for the reconstruction of color 3-D images from the RGB in-line holograms without any numerical calculation of digital filtering. Numerical reconstruction of images shows that fine color images with high resolution are reconstructed from the RGB complex-amplitude in-line hologram as a result of elimination of the direct beam, noises and the conjugate beam.

Date Published: 25 January 2008
PDF: 8 pages
Proc. SPIE 6912, Practical Holography XXII: Materials and Applications, 69120U (25 January 2008); doi: 10.1117/12.762742

Published in SPIE Proceedings Vol. 6912:
Practical Holography XXII: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)