Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding

	Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding
	Hu, B ; Zhang, P ; Huang, QM ; Gao, W
	2005
发表期刊	ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2005, PT 2
ISSN	0302-9743
卷号	3768 页码:830-840
摘要	Transcoding is an important technique for reducing the bit rate or spatial resolution to meet the constrained transnmission bandwidths and terminal capabilities. In this paper, we propose a spatial downscaling transcoding method to convert an MPEG-2 bitstream into an H.264/AVC bitstream. A novel feature of the proposed method is to focus on the fast mode decision that fully exploits the advantages of variable block-size motion compensation feature in H.264/AVC. In the transcoder, types and motion vectors of pre-encodcd macroblocks are considered together to decide the new encoding block type. While maintaining a reasonable image quality, the proposed method significantly reduces the computational complexity and facilitates the video servers to provide multimedia service in real time for heterogeneous clients. Experimental results show that our method is very effective.
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Imaging Science & Photographic Technology
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods ; Imaging Science & Photographic Technology
WOS记录号	WOS:000233775300072
出版者	SPRINGER-VERLAG BERLIN
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/10154
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Hu, B
作者单位	1.Chinese Acad Sci, Comp Technol Inst, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Hu, B,Zhang, P,Huang, QM,et al. Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding[J]. ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2005, PT 2,2005,3768:830-840.
APA	Hu, B,Zhang, P,Huang, QM,&Gao, W.(2005).Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding.ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2005, PT 2,3768,830-840.
MLA	Hu, B,et al."Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding".ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2005, PT 2 3768(2005):830-840.