학술논문

Deep Ptych: Subsampled Fourier Ptychography Using Generative Priors
Document Type
Conference
Source
ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Acoustics, Speech and Signal Processing (ICASSP), ICASSP 2019 - 2019 IEEE International Conference on. :7720-7724 May, 2019
Subject
Bioengineering
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Generators
Cameras
Image reconstruction
Image resolution
Training
Computational modeling
Fourier ptychography
phase retrieval
generative models
noise robustness
subsampling
Language
ISSN
2379-190X
Abstract
This paper proposes a novel framework to regularize the highly ill-posed and non-linear Fourier ptychography problem using generative models. We demonstrate experimentally that our proposed algorithm, Deep Ptych, outperforms the existing Fourier ptychography techniques, in terms of quality of reconstruction and robustness against noise, using far fewer samples. We further modify the proposed approach to allow the generative model to explore solutions outside the range, leading to improved performance.