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- W2527635355 abstract "Previous research on optical surface scatter either assumed for the ACV (Auto-Covariance function) a simple analyticalbut unrealistic Gaussian form or depended on intensive numerical integrations. Measurements of polished opticalsurfaces indicate they accurately follow a simple inverse power law for the BSDF (Bi-directional Scatter DistributionFunction) and the related PSD (Power Spectral Density) of their random height variations, i.e. they are fractal-like. Byapplying the appropriate limits to the scale-invariant (no intrinsic correlation length) PSD, a general analytic form for thecorresponding ACV and STF (Surface or Scatter Transfer Function) can be derived. Combined with other Fourier-Besseltransform pairs, it’s possible to accurately simulate the effect of not only diffraction and aberrations such as defocus (viathe system OTF or Optical Transfer Function) but also surface and particulate scatter on the incoherent imaging of highcontrastfine-detail scenes. Simple examples of Gaussian and point objects are first presented followed by application todigital cameras that require integrating the aerial image over each pixel’s active area. The needed subsampling for acamera with over ten million pixels (each only few microns in size) requires two-dimensional FFTs (Fast FourierTransforms) of many gigabytes to accurately perform the detailed imaging calculations." @default.
- W2527635355 created "2016-10-07" @default.
- W2527635355 creator A5037490250 @default.
- W2527635355 date "2016-09-26" @default.
- W2527635355 modified "2023-09-23" @default.
- W2527635355 title "Derivation of realistic surface and particulate scatter transfer functions and their application to incoherent imaging of high-contrast fine-detail scenes" @default.
- W2527635355 cites W2479739786 @default.
- W2527635355 doi "https://doi.org/10.1117/12.2239069" @default.
- W2527635355 hasPublicationYear "2016" @default.
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