Optical Review
Print ISSN : 1340-6000
ISSN-L : 1340-6000
A Novel Spread Function for Observation of Random Surface
Kyu YOSHIMORIKazuyoshi ITOHYoshiki ICHIOKA
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1996 Volume 3 Issue 5 Pages 306-308

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Abstract
When a random rough surface is viewed obliquely by an imaging system, the position of a viewed point fluctuates with surface displacements. This fluctuation introduces an additional blur to the images that are mapped on the average surface. A new class of spread function, which represents the resolution associated with the randomness of an imaging object, is introduced to treat this problem and an analytical expression of the function is obtained for a Gaussian random surface under the presence of shadowing effects. This spread function is useful in understanding the loss in resolution of images of a random surface such as the thermal imagery of an ocean surface in the near horizon.
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© 1996 by the Optical Society of Japan
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