Paper Info
Title
A Frequent-Domain VideoTranscoder with Spatial Downscaling for H.264/AVC
Abstract
Wireless video communication is an important application supported by 3G mobile communication systems. In many applications,the pre-encoded video needs to be transcoded to lower spatial resolution to fit for various display screen sizes on mobile terminal devices. In this paper, we propose a fast video transcoder,working entirely in the frequent-domain, to convert high quality H.264/AVC bitstream into low bit rate stream with low spatial resolution for wireless video access. Simulation results show that the computational complexity of the proposed transcoder is less than 40% of that required by cascaded pixel-domain transcoder, however, the video quality achieved by the proposed method and by the pixel-domain methods is hardly distinguishable.
Year
DOI
Venue
2009
10.1109/IAS.2009.172
IAS
Keywords
Field
DocType
wireless video communication,cascaded,pre-encoded video,video quality,wireless video access,low spatial resolution,h.264-avc code standard,precoding,image resolution,proposed transcoder,cascaded pixel-domain transcoder,spatial resolution,frequent-domain videotranscoder,computational complexity,low bit rate stream,fast video transcoder,high quality h.264,3g mobile communication,video coding,transcoding,transcode,code standards,3g mobile communication system,frequent-domain,spatial downscaling,security,data mining,decision support systems,video transcoding
Transcoding,Downscaling,Computer science,Computer network,Bitstream,Video quality,Image resolution,Precoding,Computational complexity theory,Scalable Video Coding
Conference
Volume
ISBN
Citations 
1
978-0-7695-3744-3
0
PageRank 
References 
Authors
0.34
6
2
Name
Order
Citations
PageRank
Bo Wang100.34
Dichen Liu233.49