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Title :Fast and Robust Reconstruction of Penumbral Images by Combining Multiple Wiener Filters
Authors :Nozaki, Shinya
Azuma, Rumiko
Fujioka, Shinsuke
Chen, Yen-wei
Namihira, Yoshinori
Issue Date :2011
Abstract :Penumbral imaging is a powerful technique for imaging with penetrating radiation such as neutrons and hard x rays. The reconstructed image can be obtained by the deconvolution of the detected image. Usually a Wiener filter is used for the reconstruction. The limitation of the Wiener filter is that it will introduce a significant distortion when the detected image contains noise. On the other hand, heuristic methods can obtain clear reconstructed image from noisy penumbral images. However, it significantly takes computation time. We proposed a new reconstruction method in the penumbral imaging to obtain clear reconstructed image by combining the multiple Wiener filters and the method can reduce computation time. The effectiveness of the proposed method has been demonstrated by computer simulation and real laser plasma experiment.
URL :https://doi.org/10.1585/pfr.6.2406071
Type Local :雑誌掲載論文
ISSN :1880-6821
Publisher :The Japan Society of Plasma Science and Nuclear Fusion Research
URI :http://hdl.handle.net/20.500.12000/46087
Citation :Plasma and Fusion Research Vol.6 p.2406071-1 -2406071-4
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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