| Presentation | 2000/7/6 Motion Vector Translation Method in MPEG-2 Transcoder"Trampeg"for Low Bitrate Transmission Takashi AKUTSU, Hiroyuki TSUJI, Atushi Shimizu, Yoshiyuki YASHIMA, Naoki KOBAYASHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A real-time software Transcoder for MPEG-2 named"Trampeg"enables to transcode the MPEG-2 contents to lower-rate compressed bitstreams in high-quality. In Trampeg, for reducing the cost of motion estimation, motion vectors in MPEG-2 stream are re-used to calculate new vectors for re-encoding. However, as frame size and frame rate of the lower-rate images are different from those of MPEG-2, motion vectors has to be resized. In this paper, motion vector tracking algorithm in P-frame dropping and motion vector estimating algorithm in I-frame are described and evaluated in detail. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | transcoding / MPEG-2 / real-time translation / motion vector / video coding |
| Paper # | IE2000-17,PRMU2000-42,MVE2000-46 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2000/7/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | Motion Vector Translation Method in MPEG-2 Transcoder"Trampeg"for Low Bitrate Transmission |
| Sub Title (in English) | |
| Keyword(1) | transcoding |
| Keyword(2) | MPEG-2 |
| Keyword(3) | real-time translation |
| Keyword(4) | motion vector |
| Keyword(5) | video coding |
| 1st Author's Name | Takashi AKUTSU |
| 1st Author's Affiliation | NTT Cyber Space Laboratories() |
| 2nd Author's Name | Hiroyuki TSUJI |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories |
| 3rd Author's Name | Atushi Shimizu |
| 3rd Author's Affiliation | NTT East Corporation |
| 4th Author's Name | Yoshiyuki YASHIMA |
| 4th Author's Affiliation | NTT Cyber Space Laboratories |
| 5th Author's Name | Naoki KOBAYASHI |
| 5th Author's Affiliation | NTT Cyber Space Laboratories |
| Date | 2000/7/6 |
| Paper # | IE2000-17,PRMU2000-42,MVE2000-46 |
| Volume (vol) | vol.100 |
| Number (no) | 179 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |