Paper Abstract and Keywords |
Presentation |
2008-03-07 13:00
[Poster Presentation]
A design of dual-tree discrete wavelet transform based on least squares method Takafumi Shimizu, Seisuke Kyochi, Masaaki Ikehara (Keio Univ.) CAS2007-151 SIP2007-226 CS2007-116 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose a novel design of dual-tree discrete wavelet transform based on least squares method. An effective design method based on allpass filter with FIR has proposed. However, this method holds two problems. First, optimal frequency characteristic cannot be realized due to the restriction of design parameters. Second, approximation of the half sample delay condition is restricted on low frequency. The proposed method can achieve the high design degrees of freedom by using least squares method. We show the method can design more effective dual-tree discrete wavelet transform than conventional one, in terms of sharpness of frequency characteristic and accuracy of half sample delay condition, directionality and shift-invariance, by simulations. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Dual-Tree DWT / half sample delay condtion / directionality / shift invariance / least squares method / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 529, SIP2007-226, pp. 113-117, March 2008. |
Paper # |
SIP2007-226 |
Date of Issue |
2008-02-29 (CAS, SIP, CS) |
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 |
CAS2007-151 SIP2007-226 CS2007-116 |
Conference Information |
Committee |
CS SIP CAS |
Conference Date |
2008-03-06 - 2008-03-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Yamaguchi University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Network processors, signal processing for communications, wireless LAN/PAN, etc. |
Paper Information |
Registration To |
SIP |
Conference Code |
2008-03-CS-SIP-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A design of dual-tree discrete wavelet transform based on least squares method |
Sub Title (in English) |
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Keyword(1) |
Dual-Tree DWT |
Keyword(2) |
half sample delay condtion |
Keyword(3) |
directionality |
Keyword(4) |
shift invariance |
Keyword(5) |
least squares method |
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1st Author's Name |
Takafumi Shimizu |
1st Author's Affiliation |
Keio University (Keio Univ.) |
2nd Author's Name |
Seisuke Kyochi |
2nd Author's Affiliation |
Keio University (Keio Univ.) |
3rd Author's Name |
Masaaki Ikehara |
3rd Author's Affiliation |
Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-03-07 13:00:00 |
Presentation Time |
60 minutes |
Registration for |
SIP |
Paper # |
CAS2007-151, SIP2007-226, CS2007-116 |
Volume (vol) |
vol.107 |
Number (no) |
no.527(CAS), no.529(SIP), no.531(CS) |
Page |
pp.113-117 |
#Pages |
5 |
Date of Issue |
2008-02-29 (CAS, SIP, CS) |
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