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Title :Heuristic optimization in penumbral image for high resolution reconstructed image
Authors :Azuma, R.
Nozaki, S.
Fujioka, S.
Chen, Y. W.
Namihira, Y.
Issue Date :2010
Abstract :Penumbral imaging is a technique which uses the fact that spatial information can be recovered from the shadow or penumbra that an unknown source casts through a simple large circular aperture. The size of the penumbral image on the detector can be mathematically determined as its aperture size, object size, and magnification. Conventional reconstruction methods are very sensitive to noise. On the other hand, the heuristic reconstruction method is very tolerant of noise. However, the aperture size influences the accuracy and resolution of the reconstructed image. In this article, we propose the optimization of the aperture size for the neutron penumbral imaging.
URL :https://doi.org/10.1063/1.3483211
Type Local :雑誌掲載論文
ISSN :0034-6748
1089-7623
Publisher :American Institute of Physics
URI :http://hdl.handle.net/20.500.12000/46305
Citation :Review of Scientific Instruments Vol.81 no.10
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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