Paper Info
Title
Requantization transcoding in pixel and frequency domain for intra 16x16 in H.264/AVC
Abstract
In the context of Universal Multimedia Access, efficient techniques are needed for the adaptation of video content. An important example is the reduction of the bitrate in order to satisfy the bandwidth constraints imposed by the network or the decoding capability of the terminal devices. Requantization transcoding is a fast technique for bitrate reduction, and has been successfully applied in previous video coding standards such as MPEG-2. In this paper, we examine requantization in H.264/AVC, focusing on the intra 16×16 prediction modes. Due to the newly introduced coding tools in H.264/AVC, new techniques are needed that are able to lower the bitrate at a minimal quality loss. We propose two novel architectures, one in the pixel domain and one in the frequency domain, that reuse the information from the incoming bitstream in an efficient way, and perform approximately equally well as a cascade of decoder and encoder. Due to their low computational complexity, the introduced architectures are highly suitable for on-the-fly video adaptation scenarios.
Year
DOI
Venue
2006
10.1007/11864349_49
ACIVS
Keywords
Field
DocType
bandwidth constraint,pixel domain,frequency domain,on-the-fly video adaptation scenario,video content,efficient technique,previous video,universal multimedia access,bitrate reduction,requantization transcoding,computational complexity,satisfiability
Frequency domain,Transcoding,Computer vision,Universal multimedia access,Computer science,Constant bitrate,Artificial intelligence,Encoder,Bitstream,Variable bitrate,Scalable Video Coding
Conference
Volume
ISSN
ISBN
4179
0302-9743
3-540-44630-3
Citations 
PageRank 
References 
8
0.94
6
Authors
5
Name
Order
Citations
PageRank
Jan De Cock138849.57
Stijn Notebaert211413.30
Peter Lambert353867.24
Davy De Schrijver412417.67
Rik Van de Walle52040238.28