| Presentation | 2004-07-15 Spatio-temporal Extension of Anisotropic Diffusion for the Application to Low Bitrate Video Coding Hiroyuki TSUJI, Shinji TOKUMASU, Hiroki TAKAHASHI, Masayuki NAKAJIMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Pre-filters often play an important role in improving both coding efficiency and subjective image quality in low bitrate video coding. We previously proposed a novel pre-filtering scheme based on anisotropic diffusion that can preserve subjectively important edges while smoothing noises and fine textures. In this paper, we extend our scheme to spatio-temporal diffusion in successive image sequence, so that it can suppress inter-frame difference that is typically encoded in MPEG-type standard video compression. How to select a temporal edge-stopping function is also discussed. MPEG-4 encoding simulations we conducted show that our spatio-temporal filter allows agood reduction in average bit counts of inter-frame predicted pictures. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Low Bitrate / Video Coding / MPEG-4 / Pre-filter / Image Selective Smoothing / Anisotropic Diffusion |
| Paper # | IE2004-20,PRMU2004-44,MVE2004-21 |
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| Conference Information | |
| Committee | MVE |
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| Conference Date | 2004/7/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Media Experience and Virtual Environment (MVE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spatio-temporal Extension of Anisotropic Diffusion for the Application to Low Bitrate Video Coding |
| Sub Title (in English) | |
| Keyword(1) | Low Bitrate |
| Keyword(2) | Video Coding |
| Keyword(3) | MPEG-4 |
| Keyword(4) | Pre-filter |
| Keyword(5) | Image Selective Smoothing |
| Keyword(6) | Anisotropic Diffusion |
| 1st Author's Name | Hiroyuki TSUJI |
| 1st Author's Affiliation | Kanagawa Institute of Technology() |
| 2nd Author's Name | Shinji TOKUMASU |
| 2nd Author's Affiliation | Kanagawa Insititute of Technology |
| 3rd Author's Name | Hiroki TAKAHASHI |
| 3rd Author's Affiliation | Tokyo Insitute of Technology |
| 4th Author's Name | Masayuki NAKAJIMA |
| 4th Author's Affiliation | Tokyo Insitute of Technology |
| Date | 2004-07-15 |
| Paper # | IE2004-20,PRMU2004-44,MVE2004-21 |
| Volume (vol) | vol.104 |
| Number (no) | 195 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |