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- W1984395523 abstract "A unique experimental technique has made it possible to make measurements in desert atmospheres of the horizontal modulation transfer function (MTF<SUB>A</SUB>) and its components which are attributed to contrast, aerosols, and turbulence. In particular, use of this technique has made it possible, for the first time, to directly measure the low spatial frequency cutoff of the aerosol component. This technique is based on utilizing digital image processing of remote video scenes that include two, optically identical, castellated targets which are located at different distances and are contrasted against the horizon sky. Ratios of contrast and FFT calculations may be used to determine the absolute values and spatial cutoff frequencies of the MTF<SUB>A</SUB> and its three components, independent of the imaging system and actual properties of the targets. The experimental technique is described along with preliminary MTF<SUB>A</SUB> measurements of the aerosol component." @default.
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- W1984395523 date "1992-08-01" @default.
- W1984395523 modified "2023-09-23" @default.
- W1984395523 title "<title>Measurement of the aerosol component of the modulation transfer function in desert atmospheres</title>" @default.
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- W1984395523 doi "https://doi.org/10.1117/12.137945" @default.
- W1984395523 hasPublicationYear "1992" @default.
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