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1986
Journal Article
Titel
Spatial frequency filtering in an optical imaging system with an extended incoherent light source
Abstract
A single-lens imaging system is described that provides spatial frequency filtering to an extended incoherent light source. Two ways to calculate the modified image are considered: First, the image is derived from the filtered diffraction pattern by Fourier synthesis. Second, the convolution of the object function with a Fourier transform of the filter function has to be evaluated with regard to a phase function that corresponds to the light source position.
Language
English
Tags
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fourier transform optics
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lenses
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optical images
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optical information processing
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pattern recognition
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spatial filters
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optical pattern recognition
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optical imaging system
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extended incoherent light source
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single-lens imaging system
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spatial frequency filtering
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filtered diffraction pattern
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fourier synthesis
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convolution
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object function
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fourier transform
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filter function
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phase function
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light source position