Elimination of the zero-order term in off-axis digital holography by multiplexing of light intensity ratio

2021 ◽  
Author(s):  
Hao Chen ◽  
Yiwei Liu ◽  
Qiuya Sun ◽  
Zhuqing Jiang
Keyword(s):  
Light Intensity ◽  
Intensity Ratio ◽  
Digital Holography ◽  
Order Term ◽  
Zero Order

Iterative approach for zero-order term elimination in off-axis multiplex digital holography

2017 ◽  
Vol 383 ◽  
pp. 513-517 ◽  
Author(s):  
Dongliang Zhao ◽  
Dongzhuo Xie ◽  
Yong Yang ◽  
Hongchen Zhai
Keyword(s):  
Digital Holography ◽  
Order Term ◽  
Zero Order ◽  
Iterative Approach

Suppression of the zero-order term in off-axis digital holography through nonlinear filtering

2009 ◽  
Vol 48 (34) ◽  
pp. H186 ◽  
Author(s):  
Nicolas Pavillon ◽  
Chandra Sekhar Seelamantula ◽  
Jonas Kühn ◽  
Michael Unser ◽  
Christian Depeursinge
Keyword(s):  
Nonlinear Filtering ◽  
Digital Holography ◽  
Order Term ◽  
Zero Order

Multi-Plane 3-D Holographic Image Fusion in DCT Domain

2013 ◽  
Vol 760-762 ◽  
pp. 572-576
Author(s):  
Hao Zhou ◽  
Ji Hua Gu ◽  
Da Qing Chen
Keyword(s):  
Image Fusion ◽  
Digital Holography ◽  
Order Term ◽  
Zero Order ◽  
Laplacian Operator ◽  
Discrete Wavelet ◽  
Fusion Method ◽  
Fusion Algorithm ◽  
Rectangular Window ◽  
Dct Domain

An improved multi-plane imaging fusion algorithm for 3-D digital holography is presented. Multiple reconstructed images at different distances from single off-axis Fresnel digital hologram are fused using discrete cosine transform (DCT) with different blocks. The zero order term is removed using a Laplacian operator while the conjugate image and dispersed images of defocused objects are eliminated by selecting a simple rectangular window before image fusion. Compared with those fused images obtained directly from the reconstructed images, the fused images qualities are greatly improved and all of the objects will be clearly in focus more quickly than discrete wavelet (DWT) based fusion method.

scholarly journals Numerical iterative approach for zero-order term elimination in off-axis digital holography

2013 ◽  
Vol 21 (23) ◽  
pp. 28314 ◽  
Author(s):  
Zhonghong Ma ◽  
Lijun Deng ◽  
Yong Yang ◽  
Hongchen Zhai ◽  
Qi Ge
Keyword(s):  
Digital Holography ◽  
Order Term ◽  
Zero Order ◽  
Iterative Approach

scholarly journals Fast phase reconstruction in off-axis digital holography with zero-order term suppression

2020 ◽  
Vol 50 (3) ◽  
Author(s):  
Guangyu Luan ◽  
Mingguang Shan ◽  
Zhi Zhong ◽  
Bai Xia
Keyword(s):  
Digital Holography ◽  
Order Term ◽  
Zero Order ◽  
Light Illumination ◽  
Reconstruction Method ◽  
Phase Reconstruction ◽  
Fast Phase ◽  
Free Sample ◽  
Suppression Method ◽  
White Light Illumination

A fast phase reconstruction method (FPRM) employing a free-sample hologram can improve the efficiency of phase reconstruction in off-axis digital holography. However, the space-bandwidth product is still confined by spectrum aliasing in the hologram owing to the zero-order term. In this paper, we propose an FPRM that features an efficient zero-order term suppression method called the average gray that can eliminate spectrum shifting. We can implement phase reconstruction by considering both speed and the space-bandwidth product. We verified the validity of our approach for off-axis digital holography using laser and white-light illumination.

scholarly journals Iterative method for zero-order suppression in off-axis digital holography

2010 ◽  
Vol 18 (15) ◽  
pp. 15318 ◽  
Author(s):  
Nicolas Pavillon ◽  
Cristian Arfire ◽  
Isabelle Bergoënd ◽  
Christian Depeursinge
Keyword(s):  
Iterative Method ◽  
Digital Holography ◽  
Zero Order

An effective approach to removing zero-order term overlap and controlling image distortion in digital off-axis holography

2015 ◽  
Vol 356 ◽  
pp. 589-594
Author(s):  
Weipeng Zhang ◽  
Mingqing Wang ◽  
Ming Zheng ◽  
Jian Wu
Keyword(s):  
Order Term ◽  
Image Distortion ◽  
Zero Order
Sign in / Sign up

Export Citation Format

Share Document