Simulation of the effect of noise on terahertz digital holography reconstructed image

Ping Lin; Qi Li; Zuochun Shen

doi:10.1117/12.2533398

17 May 2019 Simulation of the effect of noise on terahertz digital holography reconstructed image

Ping Lin, Qi Li, Zuochun Shen

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111701F (2019) https://doi.org/10.1117/12.2533398
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In the terahertz imaging experiments, target is often embedded in a support plate (such as PTFE, etc.). Background noise will be caused by many factors, such as uneven material and non-smoothness of support plate. In this paper, the impacts of noise on terahertz in-line digital holography single-exposure, support-domain constrained phase retrieval algorithm and its reconstructed results are simulated. The support domain is determined by the combination of the Otsu algorithm and the opening and closing operation. Firstly, the influences of noise on 2.52 terahertz in-line digital holographic reconstruction are studied when the transmittance of support plate is 0.93. The mean value of Gaussian noise of the support plate is 0, and the standard deviation range is between 0 and 0.1, and the interval is 0.005. Mean square error (MSE) and peak signal-to-noise ratio (PSNR) are used as the evaluation criteria. Finally, the Gaussian noise with mean value of 0 and standard deviation of 0.04 is selected to simulate and analyze the effect of the reconstructed image with different transmittances. The results show that, when the transmittance of the support plate is 0.93 and the noise standard deviation is 0-0.04, the peak signal-to-noise ratio is less than 6% lower than of the ideal support plate reconstruction.

Citation Download Citation

Ping Lin, Qi Li, and Zuochun Shen "Simulation of the effect of noise on terahertz digital holography reconstructed image", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111701F (17 May 2019); https://doi.org/10.1117/12.2533398

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

3D image reconstruction

Digital holography

Reconstruction algorithms

Transmittance

Image quality

Phase retrieval

Terahertz radiation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years