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Paper Abstract and Keywords
Presentation 2019-03-05 15:50
Reconstruction considering Poisson's nature on sinogram in X-ray CT
Saki Sugiura, Naohiro Toda (Aichi Pref. Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Although X-ray CT (Computed Tomography) has become indispensable in medical diagnosis, more reduction of radiation exposure is required. When irradiation dose is reduced in X-ray CT, quantum noise on the reconstructed image increases. There is a possibility that a reconstructed image with high accuracy can be obtained with less irradiation amount by utilizing the physical characteristic about arrival of X ray that the number of X-ray photons to be measured follows the Poisson distribution. In this research, focusing on the fact that the sinogram directly holds the Poisson property of arrival of X-rays, by adaptively changing the smoothing span of the Bi-lateral filter so that the variation coefficient becomes constant on the sinogram. A method for improving reconstruction image quality is proposed.
Keyword (in Japanese) (See Japanese page) 
(in English) X-ray CT / sinogram / Bi-lateral filter / Smoothin / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 469, MBE2018-101, pp. 77-82, March 2019.
Paper # MBE2018-101 
Date of Issue 2019-02-25 (MBE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee NC MBE  
Conference Date 2019-03-04 - 2019-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) University of Electro Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2019-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Reconstruction considering Poisson's nature on sinogram in X-ray CT 
Sub Title (in English)  
Keyword(1) X-ray CT  
Keyword(2) sinogram  
Keyword(3) Bi-lateral filter  
Keyword(4) Smoothin  
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1st Author's Name Saki Sugiura  
1st Author's Affiliation Aichi Prefectural University (Aichi Pref. Univ.)
2nd Author's Name Naohiro Toda  
2nd Author's Affiliation Aichi Prefectural University (Aichi Pref. Univ.)
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Speaker
Date Time 2019-03-05 15:50:00 
Presentation Time 25 
Registration for MBE 
Paper # IEICE-MBE2018-101 
Volume (vol) IEICE-118 
Number (no) no.469 
Page pp.77-82 
#Pages IEICE-6 
Date of Issue IEICE-MBE-2019-02-25 


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