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Paper Abstract and Keywords
Presentation 2014-09-19 13:10
A Study of Image Coding Using Multiple Bases Sets Designed under Different Sparsity Condition
Takahiro Imaizumi, Ji Wang, Yoshiyuki Yashima (Chiba Inst. of Tech.) LOIS2014-25 IE2014-38 EMM2014-55
Abstract (in Japanese) (See Japanese page) 
(in English) We had proposed an image coding method using the multiple sparse bases sets based on local features calculated by DSIFT, in which an image to be encoded is divided into blocks and class number of each block is determined, and the sparse bases set designed for the class is utilized for encoding. In this paper, we introduce a new technique using the multiple sparse bases sets designed under different sparsity conditions. In the proposed method, for each class classified with local features, several sparse bases sets are designed under different K-SVD constraint condition about the number of non-zero coefficients, and they are adaptively used block by block in the encoder. Experimental results show that the proposed method can improve R-D coding efficiency compared to conventional one using single bases set for each class.
Keyword (in Japanese) (See Japanese page) 
(in English) Image coding / Spase coding / K-SVD / OMP / DSHIFT / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 221, IE2014-38, pp. 85-90, Sept. 2014.
Paper # IE2014-38 
Date of Issue 2014-09-11 (LOIS, IE, EMM) 
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 LOIS2014-25 IE2014-38 EMM2014-55

Conference Information
Committee IE EMM LOIS IEE-CMN ITE-ME  
Conference Date 2014-09-18 - 2014-09-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IE 
Conference Code 2014-09-IE-EMM-LOIS-CMN-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Image Coding Using Multiple Bases Sets Designed under Different Sparsity Condition 
Sub Title (in English)  
Keyword(1) Image coding  
Keyword(2) Spase coding  
Keyword(3) K-SVD  
Keyword(4) OMP  
Keyword(5) DSHIFT  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takahiro Imaizumi  
1st Author's Affiliation Chiba Institute of Technology (Chiba Inst. of Tech.)
2nd Author's Name Ji Wang  
2nd Author's Affiliation Chiba Institute of Technology (Chiba Inst. of Tech.)
3rd Author's Name Yoshiyuki Yashima  
3rd Author's Affiliation Chiba Institute of Technology (Chiba Inst. of Tech.)
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Speaker Author-1 
Date Time 2014-09-19 13:10:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # LOIS2014-25, IE2014-38, EMM2014-55 
Volume (vol) vol.114 
Number (no) no.220(LOIS), no.221(IE), no.222(EMM) 
Page pp.85-90 
#Pages 6 
Date of Issue 2014-09-11 (LOIS, IE, EMM) 

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