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Paper Abstract and Keywords
Presentation 2007-03-19 11:00
Near-Lossless Coding of Still Images Using Block-Adaptive Prediction
Kazuya Takahashi, Nau Ozaki, Ichiro Matsuda, Susumu Itoh (Tokyo Univ. of Science), Sei Naito, Atsushi Koike (KDDI R&D Labs.)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a near-lossless coding scheme using block-adaptive prediction for still images. The scheme employs a quadtree-based variable block-size adaptive prediction technique to exploit spatial correlations in image signals which have various edges and textures. In order to keep magnitude of differences between the original and reconstructed images within a given limit of $d$, prediction errors obtained by the above prediction technique are quantized with a step-size of $2d+1$ and then encoded using a context-adaptive arithmetic coder. Simulation results indicate that the proposed method attains 8--50\,\% lower coding rates than the JPEG-LS standard when $d=1$.
Keyword (in Japanese) (See Japanese page) 
(in English) Image coding / Near-lossless coding / Block-adaptive prediction / Linear quantization / Arithmetic code / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 608, IE2006-278, pp. 17-22, March 2007.
Paper # IE2006-278 
Date of Issue 2007-03-12 (IE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee IE  
Conference Date 2007-03-19 - 2007-03-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To IE 
Conference Code 2007-03-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Near-Lossless Coding of Still Images Using Block-Adaptive Prediction 
Sub Title (in English)  
Keyword(1) Image coding  
Keyword(2) Near-lossless coding  
Keyword(3) Block-adaptive prediction  
Keyword(4) Linear quantization  
Keyword(5) Arithmetic code  
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1st Author's Name Kazuya Takahashi  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Nau Ozaki  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
3rd Author's Name Ichiro Matsuda  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
4th Author's Name Susumu Itoh  
4th Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
5th Author's Name Sei Naito  
5th Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI R&D Labs.)
6th Author's Name Atsushi Koike  
6th Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI R&D Labs.)
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Speaker
Date Time 2007-03-19 11:00:00 
Presentation Time 20 
Registration for IE 
Paper # IEICE-IE2006-278 
Volume (vol) IEICE-106 
Number (no) no.608 
Page pp.17-22 
#Pages IEICE-6 
Date of Issue IEICE-IE-2007-03-12 


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