Using the angular spectrum method and Fresnel transform as kernels in a modified Gerchberg-Saxton algorithm

Authors

Patricia Gaña Pangilinan ⋅ PH National Institute of Physics, University of the Philippines Diliman
Giovanni Tapang ⋅ PH National Institute of Physics, University of the Philippines Diliman
Wynn Dunn Gil Improso ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

This work uses the angular spectrum method and the Fresnel transform as the kernel of a modified Gerchberg-Saxton algorithm (MGSA) for image reconstruction in lensless optical systems using the retrieved phases. The MGSA yielded image reconstructions with high similarity when compared to the known diffraction plane image and assessed using Linfoot's criteria of merit. The relatively low image sharpness is attributed to the sampling issues in the numerical simulation of the angular spectrum method and the Fresnel transform.

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Issue

2020: Proceedings of the 38th Samahang Pisika ng Pilipinas Physics Conference

Shedding light on the pandemic through the lens of physics
Pagtanglaw sa pandemya sa lente ng pisika
19-23 October 2020

This is the first fully online SPP Physics Conference. Please visit the SPP2020 activity webpage for more information on this year's Physics Congress.

Article ID

SPP-2020-3D-06

Section

Instrumentation, Imaging, and Signal Processing (Short Presentations)

Published

2020-10-19

How to Cite

[1]

PG Pangilinan, G Tapang, and WDG Improso, Using the angular spectrum method and Fresnel transform as kernels in a modified Gerchberg-Saxton algorithm, Proceedings of the Samahang Pisika ng Pilipinas 38, SPP-2020-3D-06 (2020). URL: https://proceedings.spp-online.org/article/view/SPP-2020-3D-06.