Paper Info
Title
Joint rate control algorithm for low-delay MPEG-4 object- based video encoding
Abstract
This paper proposes an improved rate control algorithm for jointly encoding multiple arbitrarily shaped video objects in the context of low-delay MPEG-4 compliant video coding. The algorithm provides adequate mechanisms for dealing with deviations between the ideal and the actual behavior of video scene encoders, notably: 1) compensation mechanisms (e.g., rate control decisions) that are able to track these deviations and compensate them to allow a stable and efficient operation of the encoder, and 2) adaptation mechanisms (e.g., estimation of model parameters) that are able to instantaneously represent the actual behavior of the encoder and its rate controller. The proposed solution efficiently allocates the available resources, i.e., target bit rate and bitstream buffer space, aiming at maximizing the average scene quality and minimizing quality fluctuations along time and among the various video objects. The results show that this solution outperforms the usual reference solutions, notably those specified in the rate control informative annex of the MPEG-4 visual standard.
Year
DOI
Venue
2009
10.1109/TCSVT.2009.2022701
IEEE Trans. Circuits Syst. Video Techn.
Keywords
Field
DocType
improved rate control algorithm,video encoding,video object,mpeg-4 object,joint rate control algorithm,various video object,rate controller,actual behavior,video scene encoders,mpeg-4 compliant video coding,rate control informative annex,target bit rate,rate control decision,encoding,resource management,fluctuations,layout,parameter estimation
Control theory,Code rate,Computer science,Real-time computing,Encoder,Bitstream,MPEG-4,Scalable Video Coding,Encoding (memory),Signal compression
Journal
Volume
Issue
ISSN
19
9
1051-8215
Citations 
PageRank 
References 
4
0.41
10
Authors
2
Name
Order
Citations
PageRank
Paulo Nunes117116.79
Fernando Pereira2177172124.79