Paper Abstract and Keywords |
Presentation |
2016-07-01 10:15
Design of directional discrete cosine frames Seisuke Kyochi (The Univ. Kitakyushu), Taizo Suzuki (Univ. of Tsukuba), Yuichi Tanaka (TUAT) IE2016-37 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a directional block transform, called directional discrete cosine transform (DDCT).
Conventional directional transforms, such as curvelet and contourlet, can provide sparse image representations that
contribute high quality image analysis and restoration. However, they are not hardware-friendly algorithms for
practical computation, since they typically require high computational cost, large amount of memory usage, and
global memory access. Our directional block transform constructed from the discrete cosine transform (DCT) forms
a Parseval block-wise frame and the supports of frame elements are identical or disjoint. In experiments, we evaluate
the proposed method with conventional directional block transforms in image recovery by a convex optimization
and show its effectiveness. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Block transform / discrete cosine transform / directionality / sparse representation / dual-tree transform / / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 119, IE2016-37, pp. 11-16, July 2016. |
Paper # |
IE2016-37 |
Date of Issue |
2016-06-24 (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) |
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IE2016-37 |
Conference Information |
Committee |
IE |
Conference Date |
2016-07-01 - 2016-07-01 |
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(See Japanese page) |
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Paper Information |
Registration To |
IE |
Conference Code |
2016-06-IE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of directional discrete cosine frames |
Sub Title (in English) |
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Keyword(1) |
Block transform |
Keyword(2) |
discrete cosine transform |
Keyword(3) |
directionality |
Keyword(4) |
sparse representation |
Keyword(5) |
dual-tree transform |
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1st Author's Name |
Seisuke Kyochi |
1st Author's Affiliation |
The University of Kitakyushu (The Univ. Kitakyushu) |
2nd Author's Name |
Taizo Suzuki |
2nd Author's Affiliation |
University of Tsukuba (Univ. of Tsukuba) |
3rd Author's Name |
Yuichi Tanaka |
3rd Author's Affiliation |
Tokyo University of Agriculture and Technology (TUAT) |
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Speaker |
Author-1 |
Date Time |
2016-07-01 10:15:00 |
Presentation Time |
30 minutes |
Registration for |
IE |
Paper # |
IE2016-37 |
Volume (vol) |
vol.116 |
Number (no) |
no.119 |
Page |
pp.11-16 |
#Pages |
6 |
Date of Issue |
2016-06-24 (IE) |
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