Lensless imaging based on coherent backscattering in random media
Author(s) -
Lei Xu,
Hao Yang,
Peilong Hong,
Bo Fang,
Jingjun Xu,
Guoquan Zhang
Publication year - 2014
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4893471
Subject(s) - coherent backscattering , optics , scattering , point spread function , image resolution , physics , resolution (logic) , image quality , coherent diffraction imaging , backscatter (email) , contrast (vision) , iterative reconstruction , materials science , image (mathematics) , computer science , computer vision , artificial intelligence , phase retrieval , fourier transform , quantum mechanics , telecommunications , wireless
We studied lensless imaging due to coherent backscattering in random media both theoretically and experimentally. The point spread function of the lensless imaging system was derived. Parameters such as the volume fraction of the scatterer in the random scattering medium, the diameter of the scatterer, the distance between the object to be imaged and the surface of the random scattering medium were optimized to improve the image contrast and resolution. Moreover, for complicated objects, high contrast and quality images were achieved through the high-order intensity correlation measurement on the image plane, which may propel this imaging technique to practical applications
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