Source:http://linkedlifedata.com/resource/pubmed/id/15008542
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
6
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| pubmed:dateCreated |
2004-3-10
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| pubmed:abstractText |
We discuss two types of optical processing using vortex-producing angular phase plates. In the most common spatial-filtering operation, an input object is Fourier transformed (either by Fraunhofer diffraction or with a lens system). The Fourier transform is then multiplied by an angular phase pattern, and the product is again Fourier transformed. The output is a space-invariant, edge-enhanced version of the input object. Alternatively we can directly image the object using a lens multiplied by the angular phase. The space-variant image is severely distorted along the optical axis of the system. We encode the phase plates onto a liquid-crystal display and present experimental results on both systems.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Feb
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| pubmed:issn |
0003-6935
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
20
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| pubmed:volume |
43
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
1360-7
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| pubmed:year |
2004
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| pubmed:articleTitle |
Optical processing with vortex-producing lenses.
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| pubmed:affiliation |
Department of Physics, San Diego State University, San Diego, California 92182-1233, USA.
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| pubmed:publicationType |
Journal Article
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