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Paper Abstract and Keywords
Presentation 2005-01-24 15:15
*
, Masaharu Adachi (Tokyo Denki Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Partitioned Iterated Function Systems that are called PIFS, encode an image using a property of fractal in the image. Therefore, PIFS is a kind of fractal image coding. PIFS partitions the original image into some blocks that are called range blocks. The range blocks are assigned so that they do not overlap with each other. For each range block the most similar block, that is called domain block, is searched in the contracted image. The
image is encoded by the correspondences of the range blocks to the domain blocks. Although fractal image oding
is expected the high compression rate, searching the optimal domain block to each range block has been equired
large computational costs. Therefore, we propose a new coding method using Self-Organizing Maps for lassifying
range blocks and domain blocks. By classifying the range blocks and domain blocks the computational costs are decreased. This method can decrease the computational costs in comparison to the original PIFS though it keeps the image quality almost the same with that of the original PIFS.
Keyword (in Japanese) (See Japanese page) 
(in English) Fractal image coding / Self-Organizing maps / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 583, NLP2004-93, pp. 27-30, Jan. 2005.
Paper # NLP2004-93 
Date of Issue 2005-01-17 (NLP) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee NLP  
Conference Date 2005-01-24 - 2005-01-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagawa Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) (TBD) 
Paper Information
Registration To NLP 
Conference Code 2005-01-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
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Title (in English)
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Keyword(1) Fractal image coding  
Keyword(2) Self-Organizing maps  
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1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Masaharu Adachi  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
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Speaker Author-1 
Date Time 2005-01-24 15:15:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2004-93 
Volume (vol) vol.104 
Number (no) no.583 
Page pp.27-30 
#Pages
Date of Issue 2005-01-17 (NLP) 


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