Point spread function estimation from projected speckle illumination[J]. LSA, 2016,5(2).
Meitav, N., Ribak, E. N. & Shoham, S. Point spread function estimation from projected speckle illumination. Light: Science & Applications, 5, e16048 (2016).
Point spread function estimation from projected speckle illumination[J]. LSA, 2016,5(2). DOI: 10.1038/lsa.2016.48.
Meitav, N., Ribak, E. N. & Shoham, S. Point spread function estimation from projected speckle illumination. Light: Science & Applications, 5, e16048 (2016). DOI: 10.1038/lsa.2016.48.
Point spread function estimation from projected speckle illumination
The resolution of an imaging apparatus is ideally limited by the diffraction properties of the light passing through the system aperture
but in many practical cases
inhomogeneities in the light propagating medium or imperfections in the optics degrade the image resolution. Here we introduce a powerful and practical new approach for estimating the point spread function (PSF) of an imaging system on the basis of PSF Estimation from Projected Speckle Illumination (PEPSI). PEPSI uses the fact that the speckles' phase randomness cancels the effects of the aberrations in the illumination path
thereby providing an objective pattern for measuring the deformation of the imaging path. Using this approach
both wide-field-of-view and local-PSF estimation can be obtained by calibration-free
single-speckle-pattern projection. Finally
we demonstrate the feasibility of using PEPSI estimates for resolution improvement in iterative maximum likelihood deconvolution.
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