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Paper Abstract and Keywords
Presentation 2009-07-02 10:50
Fast Adaptive Directional Lifting-Based Wavelet Transform based on Dual-Tree Complex Wavelet Transform
Daisuke Wakide, Seisuke Kyochi (Keio Univ.), Yuichi Tanaka (Utsunomiya Univ.), Masaaki Ikehara (Keio Univ.) CAS2009-14 VLD2009-19 SIP2009-31
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a novel fast adaptive directional lifting-based wavelet transform (ADLWT) by using dual-tree complex wavelet transform (DTCWT). Conventionally, a lifting direction is decided by the high-pass filtering for some selective directions. The optimal direction gives minimum energy of the high-pass filtered output signal. However, this procedure suffers from the large amount of computational cost. In this paper, a novel decision method of the lifting direction is proposed by utilizing DTCWT. The computational cost can be reduced by the proposed method while keeping the visual quality of the compressed image obtained by the conventional ADLWT.
Keyword (in Japanese) (See Japanese page) 
(in English) Adaptive directional lifting-based wavelet transform / dual-tree complex wavelet transform / image coding / calculation cost / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 112, SIP2009-31, pp. 73-78, July 2009.
Paper # SIP2009-31 
Date of Issue 2009-06-24 (CAS, VLD, SIP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Download PDF CAS2009-14 VLD2009-19 SIP2009-31

Conference Information
Committee SIP CAS VLD  
Conference Date 2009-07-01 - 2009-07-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Kushiko-shi Shogai Gakushu Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal processing, LSI, etc. 
Paper Information
Registration To SIP 
Conference Code 2009-07-SIP-CAS-VLD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fast Adaptive Directional Lifting-Based Wavelet Transform based on Dual-Tree Complex Wavelet Transform 
Sub Title (in English)  
Keyword(1) Adaptive directional lifting-based wavelet transform  
Keyword(2) dual-tree complex wavelet transform  
Keyword(3) image coding  
Keyword(4) calculation cost  
1st Author's Name Daisuke Wakide  
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 Yuichi Tanaka  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
4th Author's Name Masaaki Ikehara  
4th Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2009-07-02 10:50:00 
Presentation Time 20 minutes 
Registration for SIP 
Paper # CAS2009-14, VLD2009-19, SIP2009-31 
Volume (vol) vol.109 
Number (no) no.110(CAS), no.111(VLD), no.112(SIP) 
Page pp.73-78 
Date of Issue 2009-06-24 (CAS, VLD, SIP) 

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