IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2013-04-26 15:00
An optimization method using sparsity of DCT coeficients and image quality distortion
Kazuki Itou, Akira Kubota (Chuo Univ.) IE2013-4
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a method that optimizes coding rate and distortion of JPEG via sparse representation.
However, in this optimization, evaluating the coding rate is generally difficult to solve.
Instead, in our previous method, we seek to minimize the weighted sum of $l_{0}-$norm of DCT coefficients and distortion(MSE) using Don't Care Region and Transform Domain Bounding Box Strategy.
In this paper, we proposed a new method for automatically estimating Lagrange parameter that controls the relative importance of rate to distortion using quality parameter and DCT coefficients.
Experimental results showed that our method outperformed unoptimized JPEG compression by up to 9.1% in coding rate.
Keyword (in Japanese) (See Japanese page) 
(in English) DCT coefficients / Sparsificaton / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 20, IE2013-4, pp. 19-22, April 2013.
Paper # IE2013-4 
Date of Issue 2013-04-19 (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 IE2013-4

Conference Information
Committee IE  
Conference Date 2013-04-26 - 2013-04-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Chuo Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing and Coding, etc. 
Paper Information
Registration To IE 
Conference Code 2013-04-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An optimization method using sparsity of DCT coeficients and image quality distortion 
Sub Title (in English)  
Keyword(1) DCT coefficients  
Keyword(2) Sparsificaton  
Keyword(3)  
Keyword(4)  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kazuki Itou  
1st Author's Affiliation Chuo University (Chuo Univ.)
2nd Author's Name Akira Kubota  
2nd Author's Affiliation Chuo University (Chuo Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2013-04-26 15:00:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # IE2013-4 
Volume (vol) vol.113 
Number (no) no.20 
Page pp.19-22 
#Pages
Date of Issue 2013-04-19 (IE) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan