DocumentCode
2142208
Title
A perceptual based rate control scheme for MPEG-2
Author
Choi, K.T. ; Chan, S.C. ; Ng, T.S.
Author_Institution
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Volume
5
fYear
1998
fDate
31 May-3 Jun 1998
Firstpage
546
Abstract
In this paper, a new perceptual based rate control algorithm for MPEG-2 is presented. The algorithm first determines the target bit count for each frame using simple statistical models. Precise bit allocation is used to adjust the macroblock quantization scale factors to meet the given bit count, with the uniform visual fidelity as the primary objective. Since the buffer is very stable, it is less sensitive to transmission delay. Experimental results showed that it gave better visual quality and less buffer variations as compared to the TM5 rate control scheme
Keywords
data compression; statistical analysis; telecommunication standards; video coding; MPEG-2; macroblock quantization scale factors; perceptual based rate control scheme; precise bit allocation; stable buffer; statistical models; transmission delay sensitivity; visual quality; Bit rate; Delay; Encoding; HDTV; High definition video; Optimal control; Quantization; Rate-distortion; TV; Video coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location
Monterey, CA
Print_ISBN
0-7803-4455-3
Type
conf
DOI
10.1109/ISCAS.1998.694578
Filename
694578
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