| Presentation | 2010-03-15 Lossless Re-encoding of MPEG-1 Video with Quarter-Pel Motion Compensation Kei WAKABAYASHI, Hisashi AOMORI, Ichiro MATSUDA, Susumu ITOH, Sei NAITO, Shigeyuki SAKAZAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are developing an efficient lossless re-encoding scheme for video data which are already encoded by the MPEG-1 video coding standard. In this scheme, intra prediction which exploits spatial correlations of video signals and adaptive arithmetic coding are used for further compression of DCT coefficients extracted from the original MPEG-1 bitstream. With respect to temporal correlations, motion compensated prediction using motion vectors with half-pel accuracy is employed in the MPEG-1. It is expected that performance of the prediction could be improved by using more accurate motion vectors. In this paper, therefore, we introduce a quarter-pel motion compensation technique into non-intra coded blocks. Simulation results indicate that the proposed method can provide bit-rate savings of up to 6% for tested sequences. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MPEG-1 / Lossless Re-encoding / Arithmetic Code / Intra Prediction / Quarter-Pel Motion Compensation |
| Paper # | IE2009-196 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2010/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | Lossless Re-encoding of MPEG-1 Video with Quarter-Pel Motion Compensation |
| Sub Title (in English) | |
| Keyword(1) | MPEG-1 |
| Keyword(2) | Lossless Re-encoding |
| Keyword(3) | Arithmetic Code |
| Keyword(4) | Intra Prediction |
| Keyword(5) | Quarter-Pel Motion Compensation |
| 1st Author's Name | Kei WAKABAYASHI |
| 1st Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science() |
| 2nd Author's Name | Hisashi AOMORI |
| 2nd Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| 3rd Author's Name | Ichiro MATSUDA |
| 3rd Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| 4th Author's Name | Susumu ITOH |
| 4th Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| 5th Author's Name | Sei NAITO |
| 5th Author's Affiliation | KDDI R&D Laboratories Inc. |
| 6th Author's Name | Shigeyuki SAKAZAWA |
| 6th Author's Affiliation | KDDI R&D Laboratories Inc. |
| Date | 2010-03-15 |
| Paper # | IE2009-196 |
| Volume (vol) | vol.109 |
| Number (no) | 469 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |