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Paper Abstract and Keywords
Presentation 2021-06-03 17:00
Quadratic Surface Clustering Based on Hyperslab Projection and Its Application to Color Artifact Removal
Tatsuya Ohtsubo, Seisuke Kyochi (The Univ. of Kitakyushu) SIP2021-5 BioX2021-5 IE2021-5
Abstract (in Japanese) (See Japanese page) 
(in English) Color artifact removal based on local color nuclear norm (LCNN) has been proposed conventionally. LCNN relies on the fact that each local patch in a clear image forms line distribution (color line property). However, we can observe that many patches do not form a line, but a union of curve and surface distributions. Thus, for those patches, LCNN regularization cannot remove the color artifact effectively. In this study, we propose an effective method to remove the color artifact for curves and surfaces by the following three-step algorithm: We estimate the parameters of quadratic surface distributions in each local patch by using the hyperslab projection, apply clustering each surface distribution with the estimated parameters, and apply LCNN regularization to approximate each sub-cluster.
Keyword (in Japanese) (See Japanese page) 
(in English) Color artifact removal / color line property / local color nuclear norm regularization / projection onto hyperslab / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 56, IE2021-5, pp. 21-26, June 2021.
Paper # IE2021-5 
Date of Issue 2021-05-27 (SIP, BioX, IE) 
ISSN 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 SIP2021-5 BioX2021-5 IE2021-5

Conference Information
Committee IE SIP BioX ITE-IST ITE-ME  
Conference Date 2021-06-03 - 2021-06-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IE 
Conference Code 2021-06-IE-SIP-BioX-IST-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quadratic Surface Clustering Based on Hyperslab Projection and Its Application to Color Artifact Removal 
Sub Title (in English)  
Keyword(1) Color artifact removal  
Keyword(2) color line property  
Keyword(3) local color nuclear norm regularization  
Keyword(4) projection onto hyperslab  
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1st Author's Name Tatsuya Ohtsubo  
1st Author's Affiliation The University of Kitakyushu (The Univ. of Kitakyushu)
2nd Author's Name Seisuke Kyochi  
2nd Author's Affiliation The University of Kitakyushu (The Univ. of Kitakyushu)
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Speaker Author-1 
Date Time 2021-06-03 17:00:00 
Presentation Time 30 minutes 
Registration for IE 
Paper # SIP2021-5, BioX2021-5, IE2021-5 
Volume (vol) vol.121 
Number (no) no.54(SIP), no.55(BioX), no.56(IE) 
Page pp.21-26 
#Pages 6 
Date of Issue 2021-05-27 (SIP, BioX, IE) 

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