Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography

Chao Liu, Tianlong Man, Yuhong Wan*

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A modified nonlinear reconstruction technique with a noise modulation parameter is proposed for interferenceless coded aperture correlation holography (I-COACH), and thus the signal-to-noise ratio of a reconstructed image is improved without sacrifice of the field of view and temporal resolution of the system. In order to obtain the optimal reconstructed image, no-reference structural sharpness (NRSS) is introduced as the evaluation metric of reconstructed image quality during nonlinear reconstruction. On the other hand, the noise modulation function is built in order to analyze the effect of phase on noise when the amplitude of the point spread hologram and object hologram is unity of 1. Both the NRSS and noise modulation functions are combined with nonlinear reconstruction in I-COACH for improving imaging performance. The validities of the proposed method under different experimental conditions have been demonstrated by experiments.

Original languageEnglish
Pages (from-to)1769-1774
Number of pages6
JournalApplied Optics
Volume59
Issue number6
DOIs
Publication statusPublished - 20 Feb 2020

Funding

Funding. National Natural Science Foundation of China (61575009); Natural Science Foundation of Beijing Municipality (4182016); Beijing University of Technology (A13).

FundersFunder number
National Natural Science Foundation of China61575009
National Natural Science Foundation of China
Beijing University of TechnologyA13
Beijing University of Technology
Natural Science Foundation of Beijing Municipality4182016
Natural Science Foundation of Beijing Municipality

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