Calibration-free quantitative phase imaging in multi-core fiber endoscopes using end-to-end deep learning
Abstract
Quantitative phase imaging (QPI) through multi-core fibers (MCFs) has been an emerging in vivo label-free endoscopic imaging modality with minimal invasiveness. However, the computational demands of conventional iterative phase retrieval algorithms have limited their real-time imaging potential. We demonstrate a learning-based MCF phase imaging method, that significantly reduced the phase reconstruction time to 5.5 ms, enabling video-rate imaging at 181 fps. Moreover, we introduce an innovative optical system that automatically generated the first open-source dataset tailored for MCF phase imaging, comprising 50,176 paired speckle and phase images. Our trained deep neural network (DNN) demonstrates robust phase reconstruction performance in experiments with a mean fidelity of up to 99.8\%. Such an efficient fiber phase imaging approach can broaden the applications of QPI in hard-to-reach areas.
Cite
@article{arxiv.2312.07102,
title = {Calibration-free quantitative phase imaging in multi-core fiber endoscopes using end-to-end deep learning},
author = {Jiawei Sun and Bin Zhao and Dong Wang and Zhigang Wang and Jie Zhang and Nektarios Koukourakis and Juergen W. Czarske and Xuelong Li},
journal= {arXiv preprint arXiv:2312.07102},
year = {2023}
}
Comments
5 pages. 5 figures