Presentation | 2000/7/6 Motion Vector Translation Method in MPEG-2 Transcoder "Trampeg" for Low Bitrate Transmission Takashi AKUTSU, Hiroyuki TSUJI, Atsushi 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 | MVE |
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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) |
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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) | 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 | Atsushi 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) | 183 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |