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 2018-07-19 16:20
Easy Construction of Binary AIFV Codes for Unequal Letter Costs
Takahiro Yoshida (The Univ. Tokyo), Hirosuke Yamamoto (Meiji Univ.) IT2018-18
Abstract (in Japanese) (See Japanese page) 
(in English) In the case that the costs of letters (code symbols) 0 and 1 are equal, it is known that the AIFV code with two code trees $T_0$ and $T_1$ can attain better compression rate than the Huffman code with a single code tree $T_{rm H}$. Furthermore, if we use the so-called easy construction of an AIFV code, the code trees $T_0$ and $T_1$ can be easily constructed from Huffman code tree $T_{rm H}$. Although the obtained AIFV code is not optimal generally, it can usually attain better compression rate than the Huffman code. In this paper, we treat AIFV coding and propose easy construction algorithms of AIFV codes for unequal letter costs. In ordinary AIFV code trees, a master node is connected to its grandchild by code symbols `00'. But, we consider the cases that a master node is connected to its grandchild by `01', `10', `11' in addition to `00', and we clarify the merits and demerits for their cases.
Keyword (in Japanese) (See Japanese page) 
(in English) letter costs / AIFV code / source coding / data compression / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 139, IT2018-18, pp. 31-36, July 2018.
Paper # IT2018-18 
Date of Issue 2018-07-12 (IT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 IT2018-18

Conference Information
Committee IT  
Conference Date 2018-07-19 - 2018-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamato Kaigishitsu 
Topics (in Japanese) (See Japanese page) 
Topics (in English) freshman session, general 
Paper Information
Registration To IT 
Conference Code 2018-07-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Easy Construction of Binary AIFV Codes for Unequal Letter Costs 
Sub Title (in English)  
Keyword(1) letter costs  
Keyword(2) AIFV code  
Keyword(3) source coding  
Keyword(4) data compression  
1st Author's Name Takahiro Yoshida  
1st Author's Affiliation The University of Tokyo (The Univ. Tokyo)
2nd Author's Name Hirosuke Yamamoto  
2nd Author's Affiliation Meiji University (Meiji 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 ()
Date Time 2018-07-19 16:20:00 
Presentation Time 25 
Registration for IT 
Paper # IEICE-IT2018-18 
Volume (vol) IEICE-118 
Number (no) no.139 
Page pp.31-36 
#Pages IEICE-6 
Date of Issue IEICE-IT-2018-07-12 

[Return to Top Page]

[Return to IEICE Web Page]

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