Presentation 2010-11-15
Calculations of wiener spectrum in x-ray images using FPD by extended checker board-model
Takumi Sawada, Isao Yamada, Du-Yin Tsai, Masao Matsumoto,
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Abstract(in English) Recently, FPD(Flat Panel Detector) is used for a detector of medical x-ray imaging system. It is known widely that various noises included in medical x-ray image impede a diagnosis. Influence of quantum noise on the image taken with low dose is especially critical problem. WS(Wiener Spectrum) is used as evaluation of the noise, and it is calculated by FFT method, MEM method, and so on. However, WS calculated in these researches are based on data supplied by experiment. In this study, we calculated WS of FPD using extended checker-board model (ECBM) which was proposed by us, and compared FFT method with it to confirm utility of it.
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Keyword(in English) Flat Panel Detector(FPD) / Wiener Spectrum / Checkerboard-model
Paper # MI2010-72
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Committee MI
Conference Date 2010/11/8(1days)
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Registration To Medical Imaging (MI)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Calculations of wiener spectrum in x-ray images using FPD by extended checker board-model
Sub Title (in English)
Keyword(1) Flat Panel Detector(FPD)
Keyword(2) Wiener Spectrum
Keyword(3) Checkerboard-model
1st Author's Name Takumi Sawada
1st Author's Affiliation Gifu National College of Technology()
2nd Author's Name Isao Yamada
2nd Author's Affiliation Gifu National College of Technology
3rd Author's Name Du-Yin Tsai
3rd Author's Affiliation School of Health Sciences, Niigata University
4th Author's Name Masao Matsumoto
4th Author's Affiliation Division of Health Sciences, Osaka University
Date 2010-11-15
Paper # MI2010-72
Volume (vol) vol.110
Number (no) 280
Page pp.pp.-
#Pages 5
Date of Issue