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Paper Abstract and Keywords
Presentation 2005-03-25 13:25
Low Complex Computational Video Coding Algorithm Based on Adaptive Tree
Seiichiro Hiratsuka (Fukuoka IST), Satoshi Goto, Takaaki Baba, Takeshi Ikenaga (Waseda Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) MPEG1/2/4, H.261/3 are based on discrete cosine transform (DCT) and motion compensation (MC). Since they require high computational complexity, they consume a lot of energy. Therefore, they are not suitable for communication with mobile terminals, such as personal digital assistants (PDA). On the other hand, the video coding using 3-D hierarchical tree-structure, such as octree, has been proposed with low computational complexity. The drawback of it, however, is low compression efficiency. This paper proposes a new video coding and presents some evaluation results. It can attain both low computational complexity and high compression efficiency. The most prominent feature of the algorithm is that a upper 3-D block is adaptively segmented to arbitrarily shaped lower blocks. The experimental results show that the computational complexity of our method is one-tenth of MPEG4 codec, and the compression efficiency is about 1.2 dB better than that of the octree method. Moreover we design the region discrimination circuit by HDL and verify the possibility. The new algorithm makes a significant contribution to the development of lower electricity consumption video communication systems.
Keyword (in Japanese) (See Japanese page) 
(in English) Video Coding / Hierarchical Tree Structure / Octree / Adaptive Tree / / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 752, IE2004-228, pp. 31-36, March 2005.
Paper # IE2004-228 
Date of Issue 2005-03-18 (IE) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee IE  
Conference Date 2005-03-25 - 2005-03-25 
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Paper Information
Registration To IE 
Conference Code 2005-03-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Low Complex Computational Video Coding Algorithm Based on Adaptive Tree 
Sub Title (in English)  
Keyword(1) Video Coding  
Keyword(2) Hierarchical Tree Structure  
Keyword(3) Octree  
Keyword(4) Adaptive Tree  
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1st Author's Name Seiichiro Hiratsuka  
1st Author's Affiliation Fukuoka Industry, Science & Technology Foundation (Fukuoka IST)
2nd Author's Name Satoshi Goto  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Takaaki Baba  
3rd Author's Affiliation Waseda University (Waseda Univ.)
4th Author's Name Takeshi Ikenaga  
4th Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2005-03-25 13:25:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # IE2004-228 
Volume (vol) vol.104 
Number (no) no.752 
Page pp.31-36 
#Pages
Date of Issue 2005-03-18 (IE) 


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