Zhang W, Man T, Zhang M, Zhang L, Wan Y. Computational adaptive holographic fluorescence microscopy based on the stochastic parallel gradient descent algorithm.
BIOMEDICAL OPTICS EXPRESS 2022;
13:6431-6442. [PMID:
36589573 PMCID:
PMC9774870 DOI:
10.1364/boe.470959]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/19/2022] [Accepted: 11/02/2022] [Indexed: 05/02/2023]
Abstract
Optical aberrations introduced by sample or system elements usually degrade the image quality of a microscopic imaging system. Computational adaptive optics has unique advantages for 3D biological imaging since neither bulky wavefront sensors nor complicated indirect wavefront sensing procedures are required. In this paper, a stochastic parallel gradient descent computational adaptive optics method is proposed for high-efficiency aberration correction in the fluorescent incoherent digital holographic microscope. The proposed algorithm possesses the advantage of parallelly estimating various aberrations with fast convergence during the iteration; thus, the wavefront aberration is corrected quickly, and the original object image is retrieved accurately. Owing to its high-efficiency adaptive optimization, the proposed method exhibits better performances for a 3D sample with complex and anisotropic optical aberration. The proposed method can be a powerful tool for the visualization of dynamic events that happen inside cells or thick tissues.
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