Imaging of objects through a thin scattering layer using a spectrally and spatially separated reference. Xu, X., Xie, X., Thendiyamma, A., Zhuang, H., Xie, J., Liu, Y., Zhou, J., & Mosk, A. P. Optics Express, 26(12):15073, June, 2018. arXiv: 1804.04624
Imaging of objects through a thin scattering layer using a spectrally and spatially separated reference [link]Paper  doi  abstract   bibtex   
Incoherently illuminated or luminescent objects give rise to a low-contrast speckle-like pattern when observed through a thin diffusive medium, as such a medium effectively convolves their shape with a speckle-like point spread function (PSF). This point spread function can be extracted in the presence of a reference object of known shape. Here it is shown that reference objects that are both spatially and spectrally separated from the object of interest can be used to obtain an approximation of the point spread function. The crucial observation, corroborated by analytical calculations, is that the spectrally shifted point spread function is strongly correlated to a spatially scaled one. With the approximate point spread function thus obtained, the speckle-like pattern is deconvolved to produce a clear and sharp image of the object on a speckle-like background of low intensity.
@article{xu_imaging_2018,
	title = {Imaging of objects through a thin scattering layer using a spectrally and spatially separated reference},
	volume = {26},
	issn = {1094-4087},
	url = {http://arxiv.org/abs/1804.04624},
	doi = {10.1364/OE.26.015073},
	abstract = {Incoherently illuminated or luminescent objects give rise to a low-contrast speckle-like pattern when observed through a thin diffusive medium, as such a medium effectively convolves their shape with a speckle-like point spread function (PSF). This point spread function can be extracted in the presence of a reference object of known shape. Here it is shown that reference objects that are both spatially and spectrally separated from the object of interest can be used to obtain an approximation of the point spread function. The crucial observation, corroborated by analytical calculations, is that the spectrally shifted point spread function is strongly correlated to a spatially scaled one. With the approximate point spread function thus obtained, the speckle-like pattern is deconvolved to produce a clear and sharp image of the object on a speckle-like background of low intensity.},
	number = {12},
	urldate = {2020-07-25},
	journal = {Optics Express},
	author = {Xu, Xiaoqing and Xie, Xiangsheng and Thendiyamma, Abhilash and Zhuang, Huichang and Xie, Junpeng and Liu, Yikun and Zhou, Jianying and Mosk, Allard P.},
	month = jun,
	year = {2018},
	note = {arXiv: 1804.04624},
	keywords = {Physics - Optics},
	pages = {15073}
}

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