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Paper Abstract and Keywords
Presentation 2009-06-11 11:20
An approach to high speed video decoding scheme for mobile devices
Hirotake Matsushita, Yuki Kawamura, Takao Onoye (Osaka Univ.), Kazuto Ohhara (Osaka Univ./Sharp Corp.), Ikuo Keshi (Sharp Corp.) SIS2009-4
Abstract (in Japanese) (See Japanese page) 
(in English) A set of techniques for high-speed decoding are reported to achieve simultaneous handling of H.264 stream on mobile devices.
The decoding process is simplified with acceptable degradation of the image quality.
Concretely, decoding time is analyzed for H.264 streams, and decoding process of the motion compensation and the deblocking filter is simplified to mitigate large operation workload.
Moreover, the technique for reducing the amount of operations by omitting some frames is also implemented.
By combining the proposed techniques, phased reduction of operation workload can be achieved down to 43% of normal decoding.
The effect of each technique on image quality is described.
Keyword (in Japanese) (See Japanese page) 
(in English) H.264 / Parallel decoding / High-speed decoding / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 78, SIS2009-4, pp. 19-24, June 2009.
Paper # SIS2009-4 
Date of Issue 2009-06-04 (SIS) 
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)
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Conference Information
Committee SIS  
Conference Date 2009-06-11 - 2009-06-12 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SIS 
Conference Code 2009-06-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An approach to high speed video decoding scheme for mobile devices 
Sub Title (in English)  
Keyword(1) H.264  
Keyword(2) Parallel decoding  
Keyword(3) High-speed decoding  
1st Author's Name Hirotake Matsushita  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Yuki Kawamura  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Takao Onoye  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Kazuto Ohhara  
4th Author's Affiliation Osaka University/Sharp Corporation (Osaka Univ./Sharp Corp.)
5th Author's Name Ikuo Keshi  
5th Author's Affiliation Sharp Corporation (Sharp Corp.)
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Date Time 2009-06-11 11:20:00 
Presentation Time 20 
Registration for SIS 
Paper # IEICE-SIS2009-4 
Volume (vol) IEICE-109 
Number (no) no.78 
Page pp.19-24 
#Pages IEICE-6 
Date of Issue IEICE-SIS-2009-06-04 

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