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Paper Abstract and Keywords
Presentation 2012-10-18 13:55
Avoiding Error Magnification in Weighted Median Cut Quantization in Decoding Process -- High Quality Data Compression of Sparse Histogram Images --
Toru Ikarashi, Masahiro Iwahashi (Nagaoka Univ. of Tech.), Hitoshi Kiya (Tokyo Metropolitan Univ.) VLD2012-41 SIP2012-63 ICD2012-58 IE2012-65
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, we propose a lossy data compression algorithm for a sparse histogram image signal. The bit depth of pixel values has becoming longer than conventional ones in high dynamic range images. Due to huge variety of available tone slots, not all the bins in a histogram are utilized in general. It makes a histogram ‘sparse’. We modified an existing non-uniform quantization especially for sparse histogram images. Experimental results indicate that the proposed method has improved performance by 5[dB] in the rate-distortion curve comparing to the existing method.
Keyword (in Japanese) (See Japanese page) 
(in English) High dynamic range / Sparse histogram / Median cut / Lossy / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 248, IE2012-65, pp. 7-12, Oct. 2012.
Paper # IE2012-65 
Date of Issue 2012-10-11 (VLD, SIP, ICD, 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)
Download PDF VLD2012-41 SIP2012-63 ICD2012-58 IE2012-65

Conference Information
Committee IE SIP ICD VLD IPSJ-SLDM  
Conference Date 2012-10-18 - 2012-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Hotel Ruiz 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IE 
Conference Code 2012-10-IE-SIP-ICD-VLD-SLDM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Avoiding Error Magnification in Weighted Median Cut Quantization in Decoding Process 
Sub Title (in English) High Quality Data Compression of Sparse Histogram Images 
Keyword(1) High dynamic range  
Keyword(2) Sparse histogram  
Keyword(3) Median cut  
Keyword(4) Lossy  
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1st Author's Name Toru Ikarashi  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
2nd Author's Name Masahiro Iwahashi  
2nd Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Tech.)
3rd Author's Name Hitoshi Kiya  
3rd Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
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Speaker Author-1 
Date Time 2012-10-18 13:55:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # VLD2012-41, SIP2012-63, ICD2012-58, IE2012-65 
Volume (vol) vol.112 
Number (no) no.245(VLD), no.246(SIP), no.247(ICD), no.248(IE) 
Page pp.7-12 
#Pages
Date of Issue 2012-10-11 (VLD, SIP, ICD, IE) 


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