Paper Info
Title
Semi-Fuzzy Rate Controller for Variable Bit Rate Video
Abstract
A novel semi-fuzzy (SF) rate control algorithm (RCA) for variable bit rate (VBR) video applications is proposed. The proposed RCA is optimized to provide high quality compressed video bit streams in a wide operating range from constant quality to nearly constant bit rate. Thanks to a low degree of computational complexity, it is suitable for real-time applications of VBR video. The proposed RCA operates under given buffer size, delay and quality constraints. It provides a VBR video bit stream by controlling the quantization parameter (QP) on a picture basis. The QP is mainly controlled by a fuzzy rate controller and a deterministic quality controller, which are optimized such that they minimize the variation of quality to provide encoded video with high and stable visual quality. The proposed RCA has been implemented in an H.264/AVC video codec and the experimental results show that it provides a high-level average quality for encoded video while strictly obeying the buffering delay and quality constraints.
Year
DOI
Venue
2008
10.1109/TCSVT.2008.919108
IEEE Trans. Circuits Syst. Video Techn.
Keywords
Field
DocType
variable bit,proposed rca,high-level average quality,stable visual quality,vbr video,constant quality,semi-fuzzy rate controller,high quality,deterministic quality controller,avc video codec,encoded video,quality constraint,rate video,fuzzy,constant bit rate,coding,variable bit rate,quadratic programming,video,rate,variable,control,computational complexity,video compression,fuzzy control,quantization
Control theory,Code rate,Computer science,Constant bitrate,Image quality,Real-time computing,Bitstream,Data compression,Codec,Variable bitrate
Journal
Volume
Issue
ISSN
18
5
1051-8215
Citations 
PageRank 
References 
10
0.64
26
Authors
3
Name
Order
Citations
PageRank
M. Rezaei1311.81
M. M. Hannuksela237680.61
Moncef Gabbouj33282386.30