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.

© 2020 Optical Society of America

High-quality interferenceless coded aperture correlation holography with optimized high SNR holograms

Chao Liu, Tianlong Man, and Yuhong Wan
Appl. Opt. 61(3) 661-668 (2022)

Interferenceless coded aperture correlation holography with synthetic point spread holograms

Manoj Kumar, A. Vijayakumar, Joseph Rosen, and Osamu Matoba
Appl. Opt. 59(24) 7321-7329 (2020)

Non-linear adaptive three-dimensional imaging with interferenceless coded aperture correlation holography (I-COACH)

Mani R. Rai, A. Vijayakumar, and Joseph Rosen
Opt. Express 26(14) 18143-18154 (2018)

Noise suppression by controlling the sparsity of the point spread function in interferenceless coded aperture correlation holography (I-COACH)

Mani Ratnam Rai and Joseph Rosen
Opt. Express 27(17) 24311-24323 (2019)

Incoherent coded aperture correlation holographic imaging with fast adaptive and noise-suppressed reconstruction

Yuhong Wan, Chao Liu, Teng Ma, Yi Qin, and Sheng lv
Opt. Express 29(6) 8064-8075 (2021)