Simulation of holograms averaging on 2.52THz Gabor inline compressive holographic tomography

Jing Yuan; Qi Li

doi:10.1117/12.2500387

24 July 2018 Simulation of holograms averaging on 2.52THz Gabor inline compressive holographic tomography

Jing Yuan, Qi Li

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108270P (2018) https://doi.org/10.1117/12.2500387
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

The terahertz Gabor inline compressive holographic tomography can obtain richer information than 2D images and has potential for practical application. Due to the current terahertz detector sensitivity is not high enough and the laser light intensity is weak, we often make some holograms added together and then averaging. At the same time, the holograms averaging can eliminate speckle noise in holography. Considering the actual target and its back-bottom material are inhomogeneous, we simulated the target and its background that containing Gaussian noise. This paper mainly studies that the holograms averaging influence the compressive sensing algorithm sparse restriction parameters on the reconstruction results under Gaussian noise conditions when iteration number is 200. Finally, we give the best reconstruction parameters. This simulation study is possible benefit to the practical application.

Citation Download Citation

Jing Yuan and Qi Li "Simulation of holograms averaging on 2.52THz Gabor inline compressive holographic tomography", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108270P (24 July 2018); https://doi.org/10.1117/12.2500387

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