TY - JOUR
T1 - Noise suppression with double image spectrum extraction and Hadamard calculation in digital holography
AU - Wang, Mingqing
AU - Wang, Kai
AU - Zhang, Weipeng
AU - Zheng, Ming
AU - Wu, Jian
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/10/15
Y1 - 2015/10/15
N2 - In this paper, we describe an approach, which uses dual reference beams yet a single shot to record the hologram, and reconstructs object wave-field subsequently by extracting double image spectra and using Hadamard transform. In this way, the noises are completely suppressed without any spectrum loss to the reconstructed object image, even if the image and the dc term are in close proximity to each other. Thus, the space bandwidth can be guaranteed, as long as the image and the dc term do not overlap each other.
AB - In this paper, we describe an approach, which uses dual reference beams yet a single shot to record the hologram, and reconstructs object wave-field subsequently by extracting double image spectra and using Hadamard transform. In this way, the noises are completely suppressed without any spectrum loss to the reconstructed object image, even if the image and the dc term are in close proximity to each other. Thus, the space bandwidth can be guaranteed, as long as the image and the dc term do not overlap each other.
KW - Digital off-axis holography
KW - Hadamard transform
KW - Image division multiplexing
KW - Noise suppression
UR - https://www.scopus.com/pages/publications/84929169177
U2 - 10.1016/j.optcom.2015.05.007
DO - 10.1016/j.optcom.2015.05.007
M3 - 文章
AN - SCOPUS:84929169177
SN - 0030-4018
VL - 353
SP - 6
EP - 9
JO - Optics Communications
JF - Optics Communications
ER -