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Paper Abstract and Keywords
Presentation 2008-07-16 13:00
Image Quality Evaluation of Digital Radiographs by Use of Transmitted Information Metric
Eri Matsuyama, Yongbum Lee, Du-Yih Tsai (Niigata Univ.) MI2008-21
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents an information-entropy-based approach for evaluating overall image quality in medical imaging systems. This approach utilizes the transmitted information (TI) concept as the image quality criterion. In this study, computer-simulated images of step wedges were generated to examine the effects of these physical properties on the TI. Acrylic step wedges were also used as input objects in practical applications. Our results have shown that TI value increased with the increase of image contrast and with the decrease of image noise. Also, the TI value decreased with the increase of blur. In conclusion, the amount of TI was closely correlated with image contrast, noise and spatial resolution. Our results demonstrated the potential usefulness of the proposed method for overall evaluation of physical quality of the images obtained from medical imaging systems.
Keyword (in Japanese) (See Japanese page) 
(in English) medical imaging / image quality / physical characteristics / transmitted Information / entropy / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 131, MI2008-21, pp. 9-14, July 2008.
Paper # MI2008-21 
Date of Issue 2008-07-09 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MI2008-21

Conference Information
Committee MI  
Conference Date 2008-07-16 - 2008-07-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Sapporo Medical University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Image Processing 
Paper Information
Registration To MI 
Conference Code 2008-07-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Image Quality Evaluation of Digital Radiographs by Use of Transmitted Information Metric 
Sub Title (in English)  
Keyword(1) medical imaging  
Keyword(2) image quality  
Keyword(3) physical characteristics  
Keyword(4) transmitted Information  
Keyword(5) entropy  
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1st Author's Name Eri Matsuyama  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Yongbum Lee  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Du-Yih Tsai  
3rd Author's Affiliation Niigata University (Niigata Univ.)
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Speaker Author-1 
Date Time 2008-07-16 13:00:00 
Presentation Time 30 minutes 
Registration for MI 
Paper # MI2008-21 
Volume (vol) vol.108 
Number (no) no.131 
Page pp.9-14 
#Pages 6 
Date of Issue 2008-07-09 (MI) 

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