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Paper Abstract and Keywords
Presentation 2015-05-21 14:30
Generating Protected Eigenface Templates Using an Unitary Transformaion
Ibuki Nakamura (Tokyo Metropolitan Univ.), Yoshihide Tonomura (NTT), Hitoshi Kiya (Tokyo Metropolitan Univ.) IT2015-7 EMM2015-7
Abstract (in Japanese) (See Japanese page) 
(in English) This paper considers a template protection scheme based on an unitary transformation, where the template consists of the features extracted from the biometric trait.
In this paper, a generation method of secure eigenface features, i.e. protected templates using an unitary transformation is proposed and the recognition performance is theoretically considered.
Previous studies showed that the Euclidean distance between the templates protected by a unitary transform is the same as that between original ones, and there is no degradation of the recognition performances against l2-norm minimization.
However, any generation method of protected templates that can provide no degradation of the authentication performance against other error criteria such as l1-norm has not been shown.
The proposed template protection method for eigenface features can give same weights as those of eigenface obtained from original templates without any error criterion constraint.
That is, the proposed method enables that there is no degradation of the recognition performance under any error criterion such as l1-norm.
We perform some face recognition experiments experimentally to confirm the validity of the theory.
Keyword (in Japanese) (See Japanese page) 
(in English) biometrics / template protection method / unitary transform / eigenface / l1-norm minimization / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 38, EMM2015-7, pp. 35-40, May 2015.
Paper # EMM2015-7 
Date of Issue 2015-05-14 (IT, EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 IT2015-7 EMM2015-7

Conference Information
Committee EMM IT  
Conference Date 2015-05-21 - 2015-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto International Community House 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Information Security, Information Theory, Information Hiding, etc. 
Paper Information
Registration To EMM 
Conference Code 2015-05-EMM-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generating Protected Eigenface Templates Using an Unitary Transformaion 
Sub Title (in English)  
Keyword(1) biometrics  
Keyword(2) template protection method  
Keyword(3) unitary transform  
Keyword(4) eigenface  
Keyword(5) l1-norm minimization  
1st Author's Name Ibuki Nakamura  
1st Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
2nd Author's Name Yoshihide Tonomura  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Hitoshi Kiya  
3rd Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
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Speaker Author-1 
Date Time 2015-05-21 14:30:00 
Presentation Time 25 minutes 
Registration for EMM 
Paper # IT2015-7, EMM2015-7 
Volume (vol) vol.115 
Number (no) no.37(IT), no.38(EMM) 
Page pp.35-40 
Date of Issue 2015-05-14 (IT, EMM) 

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