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Paper Abstract and Keywords
Presentation 2009-11-19 13:20
Arbitrarily Shaped Transform Cording Based on Modification of Pixels in Shapes
Yuta Higuchi, Yoshimitsu Kuroki (Kurume Nat Coll. of Tech.) IE2009-99
Abstract (in Japanese) (See Japanese page) 
(in English) Arbitrarily shaped transform coding is a tool to achieve object-based coding.
Two types of arbitrarily shaped coding, which guarantee equivalence between the number of pixels inside shapes and DCT coefficients to be coded, are proposed as \cite{pad} and \cite{cor}.
These methods obtain same DCT coefficients, and the difference is that the former calculates outside pixel values from the inside whereas the latter varies the inside pixels by themselves.
They are based on 1D-DCT; therefore, 1D-DCT must be executed twice, namely horizontal and vertical directions.
This procedure does not guarantee the equivalence.
In this paper, we extend their methods to two-dimensional transform.
In addition, we discuss methods to optimize position of DCT coefficients and pixels using statistical model.
We embedded the proposed method in H.264/AVC, and simulation results indicate all proposed method performed almost same in coding efficiency.
Keyword (in Japanese) (See Japanese page) 
(in English) Arbitrarily shaped transform coding / padding techniques / H.264/AVC / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 292, IE2009-99, pp. 7-12, Nov. 2009.
Paper # IE2009-99 
Date of Issue 2009-11-12 (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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Conference Information
Committee ITE-ME ITE-AIT ITE-BCT IE  
Conference Date 2009-11-19 - 2009-11-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Sangyo Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IE 
Conference Code 2009-11-ME-AIT-BCT-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Arbitrarily Shaped Transform Cording Based on Modification of Pixels in Shapes 
Sub Title (in English)  
Keyword(1) Arbitrarily shaped transform coding  
Keyword(2) padding techniques  
Keyword(3) H.264/AVC  
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1st Author's Name Yuta Higuchi  
1st Author's Affiliation Kurume National College of Technology (Kurume Nat Coll. of Tech.)
2nd Author's Name Yoshimitsu Kuroki  
2nd Author's Affiliation Kurume National College of Technology (Kurume Nat Coll. of Tech.)
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Speaker Author-1 
Date Time 2009-11-19 13:20:00 
Presentation Time 20 minutes 
Registration for IE 
Paper # IE2009-99 
Volume (vol) vol.109 
Number (no) no.292 
Page pp.7-12 
#Pages 6 
Date of Issue 2009-11-12 (IE) 

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