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- W2038848120 abstract "Abstract The entropy of the point-spread function is introduced as a measure of its effective area. Numerical calculations show that any change in the pupil function induced by wavefront aberrations or by apodization increase the entropy relative to that of an in-focus, aberration-free Airy system. It is shown that `defects' of the entropy in information theory such as dependence on a particular coordinate system are natural consequences of the scaling properties of the optical diffraction integral. The minimum entropy point-spread function has been determined by a variable metric minimization algorithm. It is shown (or at least made plausible) that in-focus, aberration-free Airy system possesses the minimum entropy. Any derivation for this condition leads to increased entropy." @default.
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- W2038848120 date "1998-11-01" @default.
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- W2038848120 title "Some entropic aspects of optical diffraction imagery" @default.
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- W2038848120 doi "https://doi.org/10.1016/s0030-4018(98)00471-4" @default.
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