https://scholars.lib.ntu.edu.tw/handle/123456789/123888
標題: | A FRAME-BASED MPEG CHARACTERISTICS EXTRACTION TOOL AND ITS APPLICATION IN VIDEO TRANSCODING | 作者: | Huang, Kan-Li Tung, Yi-Shin Wu, Ja-Ling Hsiao, Po-Kang Chen, Hsien-Shuo |
關鍵字: | HBT;InGaP;kink phenomenon;scattering parameter | 公開日期: | 八月-2002 | 出版社: | Taipei:National Taiwan University Dept Elect Engn | 卷: | Vol. 48 | 期: | No. 3 | 起(迄)頁: | - | 來源出版物: | IEEE Transactions on Consumer Electronics | 摘要: | In this paper, we present a frame-based characteristics extraction tool, which can retrieve meaningful information from MPEG-compressed bitstreams. Taking advantage of the extracted information, we present a general architecture for MPEG video transcoding, which can transcode a given MPEG video bitstream into various MPEG video bitstreams with different characteristics. We also implement an MPEG-2-to-MPEG-4 video transcoder, which not only can change the bitstreams’ syntax and bitrate but also can encode each semantic video segment as a group of pictures (GOPs), by using the techniques of flame type conversion and video shot boundary detection. Moreover, the proposed transcoder can intelligently select motion mode for each macroblock of B-Vops in an MPEG-4 video to avoid some unpredictable artifacts due to mis-selection of motion mode. This representative application |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/200611150121446 | 其他識別: | 246246/200611150121446 |
顯示於: | 資訊網路與多媒體研究所 |
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