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) |
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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 |
6 |
Date of Issue |
2012-10-11 (VLD, SIP, ICD, IE) |