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 |
4 |
Date of Issue |
2013-04-19 (IE) |
|