| Presentation | 2009-02-04 Likelihood Estimation for Transform Domain Distributed Video Coding Ryoji HASHIMOTO, Hiroshi TSUTSUI, Takao ONOYE, Tomohiro IKAI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Distributed Video Coding (DVC), which is a new image compression paradigm, attracts a lot of attention from video researchers. While computational cost of DVC encoding is lower than that of MPEG-2, low coding efficiency has been an issue for practical DVC applications. In this paper, a likelihood estimation method for transform domain DVC is proposed, which uses Cauchy distribution as a virtual channel model. In the decoder, virtual channel is estimated by utilizing error between forward and backward predicted images for each frequency component. Likelihood is obtained from estimated virtual channel. Simulation results show that the proposed method can estimate the error rate with 1.6% error on average. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Distributed video coding / Likelihood estimation / Virtual channel / DCT |
| Paper # | ITS2008-39,IE2008-209 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2009/1/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Likelihood Estimation for Transform Domain Distributed Video Coding |
| Sub Title (in English) | |
| Keyword(1) | Distributed video coding |
| Keyword(2) | Likelihood estimation |
| Keyword(3) | Virtual channel |
| Keyword(4) | DCT |
| 1st Author's Name | Ryoji HASHIMOTO |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Osaka University() |
| 2nd Author's Name | Hiroshi TSUTSUI |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Osaka University |
| 3rd Author's Name | Takao ONOYE |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Osaka University |
| 4th Author's Name | Tomohiro IKAI |
| 4th Author's Affiliation | Sharp Corporation |
| Date | 2009-02-04 |
| Paper # | ITS2008-39,IE2008-209 |
| Volume (vol) | vol.108 |
| Number (no) | 424 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |