TY - GEN
T1 - Regularized Fourier Ptychography Using an Online Plug-and-play Algorithm
AU - Sun, Yu
AU - Xu, Shiqi
AU - Li, Yunzhe
AU - Tian, Lei
AU - Wohlberg, Brendt
AU - Kamilov, Ulugbek S.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - The plug-and-play priors (PnP) framework has been recently shown to achieve state-of-the-art results in regularized image reconstruction by leveraging a sophisticated denoiser within an iterative algorithm. In this paper, we propose a new online PnP algorithm for Fourier ptychographic microscopy (FPM) based on the accelerated proximal gradient method (APGM). Specifically, the proposed algorithm uses only a subset of measurements, which makes it scalable to a large set of measurements. We validate the algorithm by showing that it can lead to significant performance gains on both simulated and experimental data.
AB - The plug-and-play priors (PnP) framework has been recently shown to achieve state-of-the-art results in regularized image reconstruction by leveraging a sophisticated denoiser within an iterative algorithm. In this paper, we propose a new online PnP algorithm for Fourier ptychographic microscopy (FPM) based on the accelerated proximal gradient method (APGM). Specifically, the proposed algorithm uses only a subset of measurements, which makes it scalable to a large set of measurements. We validate the algorithm by showing that it can lead to significant performance gains on both simulated and experimental data.
KW - forward-backward algorithm
KW - Fourier ptychography
KW - nonconvex optimization
KW - plug-and-play priors
KW - proximal-gradient method
KW - stochastic gradient descent
UR - https://www.scopus.com/pages/publications/85068992725
U2 - 10.1109/ICASSP.2019.8683057
DO - 10.1109/ICASSP.2019.8683057
M3 - Conference contribution
AN - SCOPUS:85068992725
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 7665
EP - 7669
BT - 2019 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 44th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2019
Y2 - 12 May 2019 through 17 May 2019
ER -