Title :
Analysis of Utility Functions for Video
Author :
An, Cheolhong ; Nguyen, Truong Q.
Author_Institution :
California Univ. San Diego, La Jolla
fDate :
Sept. 16 2007-Oct. 19 2007
Abstract :
In this paper, we formulate the utility functions of distortion and peak signal-to-noise ratio (PSNR) which are generally used for the performance evaluation of video coding applications as the utility functions. The convexity property of these utility functions is analyzed in the original domain and transformed domain of an optimization variable. From this analysis, we derive joint optimization scheme with congestion control through the utility matching between TCP layer and video coding layer. Experimental results show that the overall PSNR increases and the variation of quality among the utility functions is reduced.
Keywords :
image sequences; optimisation; telecommunication congestion control; video coding; video streaming; TCP layer; congestion control; joint optimization scheme; utility functions; video coding application; video sequences; video streaming; Bit rate; Constraint theory; Distributed algorithms; Lagrangian functions; Media Access Protocol; Optimization methods; PSNR; Transport protocols; Utility programs; Video coding; Video; convexity; distortion-rate model; joint optimization; utility function;
Conference_Titel :
Image Processing, 2007. ICIP 2007. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-1437-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2007.4379772
