CUED Publications database

Iterative phase-only Hologram generation based on the perceived image quality

Yang, H and Chu, D (2019) Iterative phase-only Hologram generation based on the perceived image quality. Applied Sciences (Switzerland), 9.

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Abstract

© 2019 by the authors. Image quality metrics are a critical element in the iterative Fourier transform algorithms (IFTAs) for the computer generation of phase-only holograms. Conventional image quality metrics such as root-mean-squared error (RMSE) are sensitive to image content and unable to reflect the perceived image quality accurately. This would have a significant impact on the calculation speed and the quality of the generated hologram. In this work, the structure similarity (SSIM) was proposed as an image quality metric in IFTAs due to its ability to predict the perceived image quality in the presence of the white Gaussian noise and its independence on the image content. This would enable IFTAs to terminate when further iterations would no longer lead to improvement in the perceived image quality. As a result, up to 75% of unnecessary iterations were eliminated by the use of SSIM as the image quality metric.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 04 Dec 2019 20:22
Last Modified: 25 Feb 2021 06:06
DOI: 10.3390/app9204457