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Paper Abstract and Keywords
Presentation 2006-12-14 14:50
Super-resolution reconstruction using randomly subpixel shifted image sequence by iterative back-projection
Hiroyuki Misaizu (TEPCO), Minoru Inamura (Gunma Univ.) CS2006-52 IE2006-120
Abstract (in Japanese) (See Japanese page) 
(in English) Super-resolution(SR) reconstruction is the method of restoring one high resolution image from two or more low resolution images, and various methods are proposed. In the SR reconstruction method, iterative back-projection (IBP) currently used for reconstruction of an X ray CT image has comparatively simple algorithm, and has a sufficient performance. Conventionally, when resolution is raised N times by the IBP method, observation images of NxN sheets with a 1/N-pixel position shift in a horizontal and a vertical direction are needed. The actual observation images may have the uncontrollable position shift by blurring, and number of sheets may also be under NxN. In this paper, the method of solving the conventional problem is proposed by preliminary interpolation about IBP SR reconstruction using observation images that have an insufficient number and randomly position shift. By our proposed method, conventional SR reconstruction using IBP algorism become possible by having arrangement to the high resolution space of observation images, rearrangement to a discrete point of a random position shift, 2-dimensional interpolation to lack of discrete points, and re-creation of low resolution images. The results by our proposed method show that quality of image comparable as the case where there are all the observation images are obtained.
Keyword (in Japanese) (See Japanese page) 
(in English) Super-resolution / Reconstruction / Iterative back-projection / Interpolation / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 423, IE2006-120, pp. 25-30, Dec. 2006.
Paper # IE2006-120 
Date of Issue 2006-12-07 (CS, IE) 
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 CS2006-52 IE2006-120

Conference Information
Committee CS IE ITE-BCT IPSJ-AVM  
Conference Date 2006-12-14 - 2006-12-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagoya Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image coding, Communications and Stream Technologies, etc. 
Paper Information
Registration To IE 
Conference Code 2006-12-CS-IE-ITE-BCT-IPSJ-AVM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Super-resolution reconstruction using randomly subpixel shifted image sequence by iterative back-projection 
Sub Title (in English)  
Keyword(1) Super-resolution  
Keyword(2) Reconstruction  
Keyword(3) Iterative back-projection  
Keyword(4) Interpolation  
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1st Author's Name Hiroyuki Misaizu  
1st Author's Affiliation Tokyo Electric Power Company (TEPCO)
2nd Author's Name Minoru Inamura  
2nd Author's Affiliation Gunma University (Gunma Univ.)
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Speaker Author-1 
Date Time 2006-12-14 14:50:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # CS2006-52, IE2006-120 
Volume (vol) vol.106 
Number (no) no.421(CS), no.423(IE) 
Page pp.25-30 
#Pages 6 
Date of Issue 2006-12-07 (CS, IE) 

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