斑点图案
点扩散函数
去模糊
光学
计算机科学
图像复原
连贯性(哲学赌博策略)
人工智能
反褶积
迭代重建
图像分辨率
散射
计算机视觉
物理
图像处理
图像(数学)
量子力学
作者
Zhao Wang,Rui Ma,Jun Liu,Jing He,Weili Zhang
摘要
Scattering effect exists widely in practical bioimaging systems, which renders a higher demand for image reconstruction from blurred images. Generally, the point spread function (PSF) of an imaging system works as a powerful key to effectively reconstruct the hidden object even from strongly scattering-induced speckle patterns. However, the direct acquisition of the PSF commonly involves an invasive way like delighting a point in the region of interest, which is typically unavailable in practical applications. Here, we propose a non-invasive PSF recovery method under wavelength-dependent speckle illumination. The PSF is recovered from the uncorrelated intensity patterns through non-negative matrix factorization, while effective image reconstruction is realized by combining it with the multiplexed speckle pattern. It is surprising that a direct illumination, i.e., the lighting and detection utilize the same wavelength and even possess high spatial coherence, still fulfills the effective information extraction using the intensity-only based incoherent algorithm. This work provides a non-invasive way of PSF recovery and facilitates the PSF associated techniques such as image deblurring and super-resolution imaging.
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