Zero-block inter/intra mode decision for MPEG-2 to H.264/AVC inter P-frame transcoding

NCU Institutional Repository > 資訊電機學院 > 通訊工程學系 > 期刊論文 > Item 987654321/51496

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/51496

题名:	Zero-block inter/intra mode decision for MPEG-2 to H.264/AVC inter P-frame transcoding
作者:	Su,CJ;Lin,Y
贡献者:	通訊工程學系
日期:	2010
上传时间:	2012-03-27 18:54:26 (UTC+8)
出版者:	國立中央大學
摘要:	The latest H.264/AVC achieves better coding performance compared to prior video coding standards such as MPEG-2. To provide the interoperability between MPEG-2 and H.264/AVC, the authors propose an efficient inter/intra mode decision for MPEG-2 to H.264/AVC inter P-frame transcoding, which is completed in two stages. In the first stage, a zero-block inter/intra mode decision scheme is employed to select both candidate inter/intra modes for prediction based on MPEG-2 coded macroblock type and motion vector information. Fast motion estimation with various search windows is then incorporated into inter mode decision to improve computation to a great extent. For intra mode decision the authors suggest a sum of absolute transform differences based intra mode decision scheme to further eliminate improbable modes for rate-distortion optimisation calculations. The experimental results reveal that average 85% of computation time (a speed-up factor of seven) can be reduced compared to the fully decoding/encoding procedure. The degradation in the rate-distortion performance is fairly small.
關聯:	IET IMAGE PROCESSING
显示于类别:	[通訊工程學系] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	724	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing