| Presentation | 2005-03-25 Low Complex Computational Video Coding Algorithm Based on Adaptive Tree Seiichiro HIRATSUKA, Satoshi GOTO, Takaaki BABA, Takeshi Ikenaga, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Video Coding / Hierarchical Tree Structure / Octree / Adaptive Tree |
| Paper # | IE2004-228 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2005/3/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| 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 |
| 1st Author's Name | Seiichiro HIRATSUKA |
| 1st Author's Affiliation | Fukuoka Industry, Science & Technology Foundation() |
| 2nd Author's Name | Satoshi GOTO |
| 2nd Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| 3rd Author's Name | Takaaki BABA |
| 3rd Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| 4th Author's Name | Takeshi Ikenaga |
| 4th Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| Date | 2005-03-25 |
| Paper # | IE2004-228 |
| Volume (vol) | vol.104 |
| Number (no) | 752 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |