Presentation 1997/6/9
Application of Genetic Algorithm to Neutron Penumbral Imageing
Yen-Wei CHEN, Kouichi ARAKAKI, Zensho NAKAO,
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Abstract(in English) Penumbral imaging is a technique for imaging of neutrons or other penetrating radiations. The technique uses the facts that spatial information can be recovered from the shadow or penumbra that an unknown source casts through a simple large circular aperture. The limitation is that the straightforward image reconstruction will introduce some significant distortion for a large field of view because of non-isoplanaticity of the aperture point spread function. A genetic algorithm (GA) is proposed for reconstruction of pennubral images, and the technique allows distortion-free reconstruction over a large field of view. Furthermore, because in GA the complicated a priori constraints can be easily incorporated by the appropriate modification of the cost function, the algorithm is also tolerant of the noise.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Genetic algorithm / Neutron penumbral imaging / Non-isoplanatic (space-variant) / Point spread function
Paper # EID97-10
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Conference Date 1997/6/9(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Application of Genetic Algorithm to Neutron Penumbral Imageing
Sub Title (in English)
Keyword(1) Genetic algorithm
Keyword(2) Neutron penumbral imaging
Keyword(3) Non-isoplanatic (space-variant)
Keyword(4) Point spread function
1st Author's Name Yen-Wei CHEN
1st Author's Affiliation Faculty of Engineering, University of the Ryukyus()
2nd Author's Name Kouichi ARAKAKI
2nd Author's Affiliation Faculty of Engineering, University of the Ryukyus
3rd Author's Name Zensho NAKAO
3rd Author's Affiliation Faculty of Engineering, University of the Ryukyus
Date 1997/6/9
Paper # EID97-10
Volume (vol) vol.97
Number (no) 89
Page pp.pp.-
#Pages 6
Date of Issue